Jayce Robert Getz
Associate Professor of Mathematics
Automorphic representations and arithmetic geometry.
Current Research Interests
Langlands functoriality, nonabelian Fourier transforms and Poisson summation, relative trace formulae
Office Hours
Please email me for office hours.
Current Appointments & Affiliations
 Associate Professor of Mathematics, Mathematics, Trinity College of Arts & Sciences 2019
Contact Information
 120 Science Drive, Durham, NC 27708
 jgetz@math.duke.edu
 Personal website
 Background

Education, Training, & Certifications
 Ph.D., University of Wisconsin  Madison 2007
 M.A., University of Wisconsin  Madison 2006
 A.B., Harvard University 2004

Previous Appointments & Affiliations
 Assistant Professor in the Department of Mathematics, Mathematics, Trinity College of Arts & Sciences 2012  2019

Academic Positions Outside Duke
 Enseignant Chercheur Invite, AixMarseille Universite. 2022
 Visiting Associate Professor, Postech Mathematics Institute. 2021
 Visitor, Einstein Institute of Mathematics, Hebrew University. 2018
 Member, Institute for Advanced Study. 2018
 Visitor, Korea Institute of Advanced Study. 2016
 Tenure Track Assistant Professor, McGill University. 2010  2012
 Veblen Research Instructor , Princeton University and IAS. 2007  2010
 Recognition

Awards & Honors
 Member of the Institute for Advanced Study (IAS). C. Simonyi Endowment, in part. 2018
 Ferran Sunyer i Balaguer Prize. Institut d'Estudis Catalans. April 2011
 School of Mathematics/ Members. Institute for Advanced Study. 2009
 School of Mathematics/ Members. Institute for Advanced Study. 2008
 School of Mathematics/ Members. Institute for Advanced Study. September 2007
 Excellence in Mathematical Research Award. University of Wisconsin at Madison. April 2007
 Detur Book Prize. Harvard University. 2002
 1st Place in Mathematics. International Science and Engineering Fair. 2000
 2nd place overall. International Science and Engineering Fair. 2000
 Intel Science Talent Search (2nd Place). Intel. 2000
 Karl Menger Memorial Award. International Science and Engineering Fair. 2000
 Expertise

Subject Headings

Global Scholarship

Research

 Research

Selected Grants
 Summation Formulae and Triple Product Lfunctions in Higher Rank awarded by National Science Foundation 2019  2023
 Langlands Functoriality in Nonsolvable and Relative Settings awarded by National Science Foundation 2014  2018

Fellowships, Supported Research, & Other Grants
 Visitor to the Einstein Institute for Mathematics, Hebrew University awarded by Supported by Kazhdan's European Research Council Grant Harmonic Analysis and ladic Sheaves. 2019
 Visitor to the Einstein Institute for Mathematics, Hebrew University awarded by Supported by Kazhdan's European Research Council Grant Harmonic Analysis and ladic Sheaves 2018
 Membership at Institute for Advanced Study awarded by C. Simonyi Endowment 2018
 Visitor to Korea Institute of Advanced Study awarded by YounSeo Choi, KIAS 2016
 Algebraic cycles on Shimura varieties and distinguished representations awarded by Natural Sciences and Engineering Research Council (NSERC) Discovery Grant 2010  2012
 NSF Postdoctoral Research Fellowship awarded by National Science Foundation (NSF) 2007  2010
 NDSEG Graduate Fellowship awarded by American Society for Engineering Education (ASEE) 2004  2007

External Relationships
 Postech Mathematics Institute
 Publications & Artistic Works

Selected Publications

Books

Getz, J., and M. Goresky. Hilbert modular forms with coefficients in intersection homology and quadratic base change, 2012. https://doi.org/10.1007/9783034803519.Full Text

Getz, J., and M. Goresky. Introduction. Vol. 298, 2012. https://doi.org/10.1007/9783034803519_1.Full Text

Getz, J. R., and H. Hahn. An introduction to automorphic representations with a view towards trace formulae, n.d.Link to Item


Academic Articles

Getz, J. R., and B. Liu. “A refined Poisson summation formula for certain BravermanKazhdan spaces.” Science China Mathematics 64, no. 6 (June 1, 2021): 1127–56. https://doi.org/10.1007/s1142501816160.Full Text

Getz, J. R. “A summation formula for the RankinSelberg monoid and a nonabelian trace formula.” American Journal of Mathematics 142, no. 5 (October 1, 2020): 1371–1407. https://doi.org/10.1353/ajm.2020.0035.Full Text

Getz, J. R., and B. Liu. “A summation formula for triples of quadratic spaces.” Advances in Mathematics 347 (April 30, 2019): 150–91. https://doi.org/10.1016/j.aim.2019.02.023.Full Text

Getz, J. R. “Secondary terms in asymptotics for the number of zeros of quadratic forms over number fields.” Journal of the London Mathematical Society, April 19, 2018. https://doi.org/10.1112/jlms.12130.Full Text Link to Item

Getz, J. R. “Nonabelian fourier transforms for spherical representations.” Pacific Journal of Mathematics 294, no. 2 (January 1, 2018): 351–73. https://doi.org/10.2140/pjm.2018.294.351.Full Text

Getz, J. R. “A fourvariable automorphic kernel function.” Research in Mathematical Sciences 3, no. 1 (December 1, 2016). https://doi.org/10.1186/s4068701600696.Full Text

Getz, J. R., and P. E. Herman. “A nonabelian trace formula.” Research in Mathematical Sciences 2, no. 1 (December 1, 2015). https://doi.org/10.1186/s406870150025x.Full Text

Getz, J. R., and H. Hahn. “A general simple relative trace formula.” Pacific Journal of Mathematics 277, no. 1 (January 1, 2015): 99–118. https://doi.org/10.2140/pjm.2015.277.99.Full Text

Getz, J. R., and J. Klassen. “Isolating rankinselberg lifts.” Proceedings of the American Mathematical Society 143, no. 8 (January 1, 2015): 3319–29. https://doi.org/10.1090/proc/12389.Full Text

Getz, J. R., and H. Hahn. “Algebraic cycles and tate classes on hilbert modular varieties.” International Journal of Number Theory 10, no. 1 (February 1, 2014): 161–76. https://doi.org/10.1142/S1793042113500875.Full Text

Getz, J. R., and E. Wambach. “Twisted relative trace formulae with a view towards unitary groups.” American Journal of Mathematics 136 (January 3, 2014): 1–57.

Getz, J. R. “An approach to nonsolvable base change and descent.” Journal of the Ramanujan Mathematical Society 27, no. 2 (2012): 143–211.Link to Item

Getz, J. “Intersection numbers of Hecke cycles on Hilbert modular varieties.” American Journal of Mathematics 129, no. 6 (December 1, 2007): 1623–58. https://doi.org/10.1353/ajm.2007.0041.Full Text

Basha, S., J. Getz, H. Nover, and E. Smith. “Systems of orthogonal polynomials arising from the modular jfunction.” Journal of Mathematical Analysis and Applications 289, no. 1 (January 1, 2004): 336–54. https://doi.org/10.1016/j.jmaa.2003.09.067.Full Text

Getz, J. “A generalization of a theorem of Rankin and SwinnertonDyer on zeros of modular forms.” Proceedings of the American Mathematical Society 132, no. 8 (January 1, 2004): 2221–31. https://doi.org/10.1090/S0002993904074787.Full Text

Getz, J., and K. Mahlburg. “Partition identities and a theorem of Zagier.” Journal of Combinatorial Theory. Series A 100, no. 1 (January 1, 2002): 27–43. https://doi.org/10.1006/jcta.2002.3276.Full Text

Getz, J. “Extension of a theorem of Kiming and Olsson for the partition function.” Ramanujan Journal 5, no. 1 (March 1, 2001): 47–51. https://doi.org/10.1023/A:1011441111570.Full Text

Getz, Jayce, ChunHsien Hsu, and Spencer Leslie. “Harmonic analysis on certain spherical varieties.” Journal of the European Mathematical Society, n.d.Link to Item

Getz, Jayce, and Hsu ChunHsien. “The Fourier transform for triples of quadratic spaces,” n.d.Link to Item

Getz, Jayce. “Schubert Eisenstein series and Poisson summation for Schubert varieties,” n.d.Link to Item


Book Sections

Getz, J., and M. Goresky. “Eisenstein series with coefficients in intersection homology.” In Progress in Mathematics, 298:179–82, 2012. https://doi.org/10.1007/9783034803519_11.Full Text

Getz, J., and M. Goresky. “Generalities on Hilbert modular forms and varieties.” In Progress in Mathematics, 298:57–89, 2012. https://doi.org/10.1007/9783034803519_5.Full Text

Getz, J., and M. Goresky. “The full version of theorem 1.3.” In Progress in Mathematics, 298:167–77, 2012. https://doi.org/10.1007/9783034803519_10.Full Text

Getz, J., and M. Goresky. “Automorphic vector bundles and local systems.” In Progress in Mathematics, 298:91–110, 2012. https://doi.org/10.1007/9783034803519_6.Full Text

Getz, J., and M. Goresky. “Review of chains and cochains.” In Progress in Mathematics, 298:21–28, 2012. https://doi.org/10.1007/9783034803519_2.Full Text

Getz, J., and M. Goresky. “The automorphic description of intersection cohomology.” In Progress in Mathematics, 298:111–34, 2012. https://doi.org/10.1007/9783034803519_7.Full Text

Getz, J., and M. Goresky. “Explicit construction of cycles.” In Progress in Mathematics, 298:151–66, 2012. https://doi.org/10.1007/9783034803519_9.Full Text

Getz, J., and M. Goresky. “Review of intersection homology and cohomology.” In Progress in Mathematics, 298:29–39, 2012. https://doi.org/10.1007/9783034803519_3.Full Text

Getz, J., and M. Goresky. “Review of arithmetic quotients.” In Progress in Mathematics, 298:41–55, 2012. https://doi.org/10.1007/9783034803519_4.Full Text

Getz, J., and M. Goresky. “Hilbert modular forms with coefficients in a Hecke module.” In Progress in Mathematics, 298:135–50, 2012. https://doi.org/10.1007/9783034803519_8.Full Text


 Teaching & Mentoring

Recent Courses

Advising & Mentoring

Postdocs Mentored
Spencer Leslie (NSF postdoc, now at Boston College) 20182021
Michael Lipnowski (now at McGill), 20132016
Fritz Hoermann (now at AlbertLudwigsUniversitat Freiburg), 20102011
Graduate Students Supervised
Jin Lee, Duke University, Fall 2022present
ChunHsien Hsu, Duke University, Fall 2019present
Pam Gu, PhD Candidate, Duke University, Fall 2018present
ChungRu Lee, PhD 2021, Duke University, (Postdoc at National University of Singapore)
Huong Tran, PhD 2020, Duke University, (Postdoc at University of Kentucky)
Jason Pol\'{a}k, PhD 2016, McGill University (Postdoc at the University of Melbourne)
Maxime Turgeon, Master 2013, McGill University (PhD candidate in Statistics)
Undergraduate Students Supervised
Diego SosaFundora, Lucas Fagan, Craig Fiedorek, Tony Sun, Henry Zhang, Summer 2019
Trung Can, Ben Nativi, Gary Zhou, Duke University, Summer 2017
Josh Izzard, Duke University, May 2013Apr 2014
Jamie Klassen, McGill University, Summer 2012
Highschool Students Supervised
Nolan Miranda, May 2016Aug 2016
Angela Deng, May 2014Dec 2015
Erik Anderson, 20102011
Available to mentor:
 PhD
 PostDoc
 Undergraduate

Postdocs Mentored
 Scholarly, Clinical, & Service Activities

Presentations & Appearances
 Integral representations related to triple product Lfunctions. Number Theory Seminar. Postech Mathematics Institute. December 2022 2022
 Introduction to stabilization in the context of relative trace formulae. Masterclass: relative trace formulae. University of Copenhagen. August 2022 2022
 Integral representations related to triple product Lfunctions. Number Theory Seminar. Universite AixMarseille. June 2022 2022
 The Poisson summation conjecture: known cases, prospects, and applications. Sur l'equation fonctionelle des fonctions L automorphes. College de France. June 2022 2022
 Summation formulae for quadrics. Recent developments in automorphic forms and representations of padic groups. AMS. March 2022 2022
 Summation formulae for quadrics. Periods, Functoriality and Lfunctions. CIRM. January 2022 2022
 Beyond endoscopy and boundary terms on reductive monoids with a view towards nonabelian trace formulae. Basic functions, orbital integrals, and beyond endoscopy. Banff International Research Station. November 2021 2021
 Poisson summation for flag and Schubert varieties. Colloquium. Purdue University. November 2021 2021
 An approach to triple product Lfunctions. Number theory seminar. Rutgers University. October 2021 2021
 The Poisson summation conjecture for generalized Schubert varieties. Algebra and number theory day. Johns Hopkins University. September 2021 2021
 Harmonic analysis on certain spherical varieties. Galois representations and automorphic forms. Mathematical Congress of the Americas. July 2021 2021
 Harmonic analysis on certain spherical varieties. Relative aspects of the Langlands program, Lfunctions, and beyond endoscopy. Centre International de Rencontres Mathematiques. May 2021 2021
 New avenues for the circle method. The Circle Method: Entering its Second Century. Hausdorff Center for Mathematics. May 2021 2021
 Harmonic analysis on certain spherical varieties. Representation theory and number theory seminar. National University of Singapore. April 2021 2021
 Harmonic analysis on certain spherical varieties. Recent developments in automorphic representations. AMS. March 2021 2021
 A Poisson summation formula for triples of quadratic spaces. Colloquium. Postech Mathematics Institute. November 2020 2020
 Summation formulae and triple product Lfunctions. Number Theory Seminar. Postech Mathematics Institute. November 2020 2020
 A Poisson summation formula for triples of quadratic spaces. Recent Trends in Arithmetic Geometry and Representation Theory. Korean Mathematical Society. October 2020 2020
 On triple product Lfunctions. Number Theory Seminar. Princeton/IAS. May 2020 2020
 On triple product Lfunctions. UCLA. May 2020 2020
 On triple product Lfunctions. Number Theory and Representation Theory Seminar. University of WisconsinMadison. April 2020 2020
 Summation formulae for triples of quadratic forms. Hawaii Number Theory Conference. University of Hawaii at Manoa. March 2019 2019
 On triple product Lfunctions. On the Langlands Program: Endoscopy and Beyond. IMSNUS. January 2019 2019
 Secondary terms for the number of solutions of quadratic forms. On Counting Methods in Number Theory. AMS. January 2019 2019
 On triple product Lfunctions. BCMIT number theory seminar. December 2018 2018
 Proving summation formulae for spherical varieties. Workshop on Lfunctions, Langlands functoriality and trace formula, including relative aspects. September 2, 2018  September 8, 2018 2018
 Summation formulae for triples of quadratic forms. Joint AMSCMS meeting. Fudan University. June 2018 2018
 Summation formulae and speculations on period integrals attached to triples of automorphic representations. Number Theory Seminar. Northwestern University. May 2018 2018
 Summation formulae and speculations on period integrals attached to triples of automorphic representations. Number Theory Seminar. University of British Columbia. April 2018 2018
 Summation formulae and speculations on period integrals attached to triples of automorphic representations. Joint Number Theory Seminar. Princeton and the Institute for Advanced Study. March 2018 2018
 Summation formulae and speculations on period integrals attached to triples of automorphic representations. Lie Groups Seminar. Cornell University. March 2018 2018
 New families of period integrals for general linear groups. Automorphic Forms and Representation Theory Seminar. Purdue University. February 2018 2018
 Summation formulae and speculations on Lfunctions attached to triples of automorphic representations. Joint Number Theory Seminar. Columbia, CUNY, NYU. February 2018 2018
 A summation formula for triples of quadratic spaces. Algebra and Number Theory Seminar. Yale University. November 2017 2017
 A summation formula for triples of quadratic spaces. Group, Lie and Number Theory Seminar. University of Michigan. November 2017 2017
 A summation formula for triples of quadratic spaces. Automorphic Forms and Related Topics. Vietnam Institute Advanced Study in Math (VIASM). August 2017 2017
 Summation formula for the RankinSelberg monoid via the circle method. Automorphic Forms and Related Topics. AMS special session. May 2017 2017
 Summation formula for the RankinSelberg monoid via the circle method. Harmonic analysis and the trace formula. MFO. May 2017 2017
 Summation formula for the RankinSelberg monoid via the circle method. Automorphic Forms and Representation Seminar Seminar. Purdue University. February 2017 2017
 Langlands functoriality conjecture. Department Colloquium. Sookmyung Women's University. August 2016 2016
 Triple product Lfunctions and limiting forms of trace formulae. Number Theory Seminar. Korea Institute for Advanced study (KIAS). August 2016 2016
 Triple product Lfunctions and limiting forms of trace formulae. Number Theory Seminar. Yonsei University. August 2016 2016
 Triple product Lfunctions and limiting forms of trace formulae. Automorphic Forms Workshop. Wake Forest University. March 2016 2016
 Triple product Lfunctions and limiting forms of trace formulae. Langlands Program Seminar. CUNY Graduate Center. March 2016 2016
 Triple product Lfunctions and limiting forms of trace formulae. Number Theory Seminar. Boston College. March 2016 2016
 Fourvariable automorphic kernel functions. Illinois Number Theory Conference. UIUC. August 2015 2015
 Remarks on a paper of Frenkel, Langlands, and Ngo. Workshop on Lfunctions and trace formula. Purdue University. May 2015 2015
 Descent and base change with a view towards the Artin conjecture. Colloquium. Emory University. January 2015 2015
 A nonabelian trace formula. ELEFANT workshop. Hausdorff Center. July 2014 2014
 A nonabelian trace formula. Special Seminar. University of Chicago. December 2013 2013
 An approach to nonsolvable base change for GL(2). Lie theory seminar. University of Minnesota. April 2013 2013
 An approach to nonsolvable base change for GL(2). Grad/Fac seminar. Duke University. February 2013 2013
 An approach to nonsolvable base change for GL(2). Number theory seminar. University of South Carolina. December 2012 2012
 An approach to nonsolvable base change for GL(2). Athens/Atlanta Number Theory Day. Emory University. October 2012 2012
 An approach to nonsolvable base change for GL(2). Midwest Number Theory Day. UIUC. October 2012 2012
 An approach to nonsolvable base change for GL(2). Number theory seminar. Harvard University. April 2012 2012
 Hilbert modular forms with coefficients in intersection homology. Séminaire d'Algèbre et de Géométrie Gradué. Laval University. March 2012 2012
 An approach to nonsolvable base change for GL(2). Colloquium. Duke University. February 2012 2012
 An approach to nonsolvable base change for GL(2). Colloquium. Johns Hopkins University. January 2012 2012
 An approach to nonsolvable base change for GL(2). Colloquium. University of Maryland. January 2012 2012
 An approach to nonsolvable base change for GL(2). Colloquium. Cornell University. November 2011 2011
 Distinction, special cycles, and twisted relative trace fomulae. Number theory seminar. University of Chicago. May 2011 2011
 Intersection numbers of Hecke cycles on Hilbert modular varieties. MontrealToronto Meeting on Hilbert modular varieties. Fields Institute. April 2011 2011
 Twisted relative endoscopy. Number theory/algebraic geometry seminar. Yale University. March 2011 2011
 Relative endoscopy and arithmetic geometry of Shimura varieties. Special values of Lfunctions and arithmetic geometry. October 2010 2010
 Relative endoscopy and arithmetic of Shimura varieties. Number theory seminar. Kyoto University. October 2010 2010
 Relative endoscopy and arithmetic of Shimura varieties. MontrealToronto Meeting on Arithmetic of Shimura varieties. CRM, Montreal. September 2010 2010
 Elliptic descent of global orbital integrals. Canadian Number Theory Association XI. Acadia University. July 2010 2010
 Twisted relative trace formulae. Lie theory seminar. Cornell University. October 2009 2009
 Twisted relative trace formulae with applications to unitary groups. Algebraic Geometry/Number Theory Seminar. Johns Hopkins University. February 2009 2009
 Trace formulae and locally symmetric spaces. Colloquium. Boston College. January 2009 2009
 Trace formulae and locally symmetric spaces. Colloquium. McGill University. December 2008 2008
 Trace formulae and locally symmetric spaces. Members' Seminar. IAS. December 2008 2008
 Twisted relative trace formulae with applications to unitary groups. QuebecVermont number theory seminar. McGill University. December 2008 2008
 Twisted relative trace formulae with applications to unitary groups. Number theory seminar. McMaster University. November 2008 2008
 Twisted relative trace formulae with applications to unitary groups. Number theory/representation theory seminar. University of Toronto. November 2008 2008
 Twisted relative trace formulae with applications to unitary groups. Shimura varieties and trace formula seminar. IAS. November 2008 2008
 Twisted relative trace formulae with applications to unitary groups. Automorphic forms/number theory seminar. University of Minnesota. September 2008 2008
 Twisted relative trace formulae with applications to unitary groups. Number theory seminar. University of Maryland. September 2008 2008
 Twisted relative trace formulae. Colloquium. University of Minnesota. September 2008 2008
 Twisted relative trace formulae with a view towards unitary groups. Workshop on locally symmetric spaces. Banff International Research Station. May 2008 2008
 JacquetLanglands transfer and distinction. Number theory seminar. Caltech. February 2008 2008
 JacquetLanglands transfer and distinction. Number theory seminar. UCLA. February 1, 2008 2008
 Relative trace formulae with a view towards Shimura varieties. Number theory/representation theory seminar. University of Michigan. February 2008 2008
 Hilbert modular forms with coefficients in intersection homology. Algebra/Number Theory Seminar. Penn State University. November 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Algebraic Geomerty Seminar. Duke University. October 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Joint Number Theroy Seminar. Princeton University and IAS. September 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Algebraic Geomerty Seminar. University of Chicago. May 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Automorphic Forms Seminar. University of Minnesota. March 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Number theory/representation theory seminar. University of Toronto. March 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Number theory seminar. Boston College. February 2007 2007
 Intersection homology theory of Hilbert modualr varieties. Mathematics Seminar. Johns Hopkins University. January 2007 2007
 Hilbert modular forms with coefficients in intersection homology. Automorphic forms/Representation theory seminar. Purdue University. November 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Midwest Number Theory Conference IV. UIUC. October 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Number theory seminar. Ohio State University. October 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Arithmetic Geometry Semina. Humboldt University. July 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Recent Developments in the Arithmetic of Shimura Varieties and Arakelov. CRM, Bellaterra, Spain. July 2006 2006
 Hilbert modular forms with coefficients in intersection homology. AMS Special Session on Computational Arithmetic Geometry. AMS. April 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Combinatorics/Algebra/Number Theory Seminar. Iowa State University. April 2006 2006
 Hilbert modular forms with coefficients in intersection homology. AMS Special Session on Arithmetic Geometry/Modular Forms. AMS. January 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Automorphic representations, Lfunctions, and Periods. RIMS Kyoto. January 2006 2006
 Introduction to intersection homology. Mathmatics Seminar. Osaka University. January 2006 2006
 Hilbert modular forms with coefficients in intersection homology. Intersection of Arithmetic Cycles and Automorphic Forms. CRM. December 2005 2005
 Hilbert modular forms with coefficients in intersection homology. Number theory seminar. Brown University. November 2005 2005
 Hilbert modular forms with coefficients in intersection homology. Number theory seminar. Johns Hopkins University. November 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. Midwest Number Theory Conference III. University of Wisconsin. November 2005 2005
 Hilbert modular forms with coefficients in intersection homology. Number theory seminar. UCLA. October 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. NSF Focused Research Group workshop. University of Maryland. October 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. ArithmeTexas. Texas A&M. April 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. Number theory seminar. University of Rochester. March 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. The 19th Annual Automorphic Forms Workshop. UTexas at Denton. March 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. Midwest Number Theory Conference II. UIUC. February 2005 2005
 Intersection numbers of Hecke cycles on Hilbert modular varieties. Number theory seminar. University of Wisconsin. February 2005 2005
 Systems of orthogonal polynomials arising from the modular jfunction. Additive Number Theory Conference. University of Florida. November 2004 2004
 Systems of orthogonal polynomials arising from the modular jfunction. Additive Number Theory Conference. University of Florida. November 2004 2004
 Classical and padic modular forms arising from the Borcherds exponents of other modular forms. Joint Trivial Notions and Modular Seminar. Harvard University. April 2004 2004
 Systems of orthogonal polynomials arising from the modular jfunction. AMS special session on continued fractions. AMS. January 2004 2004
 Systems of orthogonal polynomials arising from the modular jfunction. Big Sky Conference on Discrete Math. University of Montana. September 2003 2003
 Systems of orthogonal polynomials arising from the modular jfunction. Modular Curves Seminar. Harvard University. September 2003 2003
 Systems of orthogonal polynomials arising from the modular jfunction. Number theory seminar. University of Wisconsin. July 2003 2003
 A generalization of a theorem of Rankin and SwinnertonDyer on zeros of modular forms. Number theory seminar. University of Wisconsin. July 2002 2002
 Partition identities and a theorem of Zagier. Math Table Seminar. Harvard University. November 2001 2001
 Partition identities and a theorem of Zagier. Modular Forms seminar. Harvard University. November 2001 2001
 Partition identities and a theorem of Zagier. Number theory seminar. University of Wisconsin. July 2001 2001

Outreach & Engaged Scholarship
 SWIM speaker. SWIM. Duke University. 2018  2018 2018
 Judge. Greater Metropolitan New York Math Fair. Brooklyn Technical High School. March 2009 2009
 Invited Panelist. NSF Give a Day, Make a Difference Outreach. NSF. May 2004 2004
 Invited Speaker. International Mathematics Olympiad Awards Ceremony. July 2001 2001
 Invited Panelist. NSF 50 Scientists and Engineers in the Schools Outreach. NSF. May 2001 2001

Service to the Profession
 Referee. Israel Journal of Mathematics. 2022 2022
 Referee. Journal of the London Mathematical Society. 2022 2022
 Referee. Proceedings of the London Mathematical Society. 2022 2022
 Panelist. NSF DMS. 2020 2020
 Referee. Mathematische Annalen. 2020 2020
 Coorganizer. Recent developments in automorphic forms. AMS, University of Hawaii. March 2019 2019
 Referee. Duke Mathematical Journal. 2019 2019
 Referee. Manuscripta Mathematica. 2019 2019
 Referee. Mathematische Zeitschrift. 2019 2019
 Referee. Transactions of the American Mathematical Society. 2019 2019
 Invited participant. Sixth Abel Conference: A Mathematical Celebration of Robert P. Langlands. Institute for Mathematics and its Applications. November 2018 2018
 Participant. Representation theory and analysis in locally symmetric spaces. Institute for Advanced Study. March 2018 2018
 Referee. American Journal of Mathematics. 2018 2018
 Referee. Journal of Algebra and its Applications. 2018 2018
 Referee. Mathematische Zeitschrift. 2018 2018
 Invited Participant. Workshop on Functoriality and the trace formula. AIM. December 2017 2017
 Referee. Pacific Journal of Mathematics. 2017 2017
 Referee. Science China Mathematics. 2017 2017
 Participant. Workshop on Mod p/padic Langlands programs. Korean Institute for Advanced Study (KIAS). August 2016 2016
 CoOrganizer. Workshop on Automorphic Kernel Functions. American Institute of Mathematics (AIM). December 2015 2015
 NSA Grant Reviewer. 2015 2015
 Participant. Conference on Analysis, Spectra and Number Theory. Princeton University and IAS. December 2014 2014
 CoOrganizer. Automorphic Forms and Related Topics. AMS Special Session. November 2014 2014
 Referee. Algebra and Number Theory. 2014 2014
 CoFounder and CoOrganizer. Number Theory Seminar. Duke University. September 2012 2012
 CoOrganizer. Algebraic Geometry Seminar. Duke University. September 2012 2012
 Referee. Advances in Mathematics. 2012 2012
 Referee. Algebra and Number Theory. 2012 2012
 Referee. Bulletin of the London Mathematical Society. 2012 2012
 Referee. Canadian Mathematical Bulletin. 2012 2012
 Referee. Compositio Mathematica. 2012 2012
 Referee. Documenta Mathematica. 2012 2012
 Referee. International Journal of Number Theory. 2012 2012
 Referee. Journal of the Mathematical Society of Japan. 2012 2012
 CoOrganizer. Bellairs Workshop in Number Theory. Barbado. May 2011 2011
 CoOrganizer. CRMISM Colloquium. McGill University. September 2010 2010
 CoOrganizer. QuebecVermont Number Theory Seminar. McGill University. September 2010 2010
 Invited Participant. Workshop on the stable trace formula, automorphic forms, and Galois representations. Banff International Research Station. August 2008 2008
 Participant. FRG workshop on recent Developments in Number Theory: Selmer Groups, Lfunctions, and Galois Deformation. UCLA. March 2008 2008
 CoOrganizer. Joint Number Theory Seminar. Princeton University and IAS. September 2007 2007
 Invited Participant. Workshop on the Tate conjecture'. AIM. July 2007 2007
 Participant. FRG workshop on Automorphic Galois Representations, Lfunctions and Arithmetic. Columbia University. June 2006 2006
 Participant. Advanced Course on Arakelov Geometry and Shimura Varieties. Centre de Recerca Matematica. February 2006 2006

Service to Duke
 Graduate Admissions. January 2022 2022
 Thesis Defense Committee, ChungRu Lee. 2022 2022
 CoFounder and CoOrganizer. Number Theory Seminar. Duke University. September 2021 2021
 Thesis Defense Committee, Chen An. 2021 2021
 Thesis defense committee, Thomas Tran. 2020 2020
 Faculty Leader. Duke Oportunities in Math (DOmath 2019). Duke University. 2019  2019 2019
 Faculty promotion. 2019 2019
 SWIM speaker. SWIM 2018 Speaker. Duke University. June 2018 2018
 Faculty Leader. Duke Opportunities in Math (DOmath2017). Duke University. May 2017  August 2017 2017
 Duke University. Graduate Admission. January 2017 2017
 Pure ARP Search. January 2017 2017
 Duke University. Thesis defense committee, Humberto Diaz. May 2016 2016
 Duke University. Graduate Admission . January 2016 2016
 Duke University. Pure ARP Search. January 2015 2015
 Speaker. Grad/Faculty Seminar. February 2013 2013
 Duke University. Pure ARP Search. January 2013 2013
 CoOrganizer. Algebraic Geometry Seminar. Duke University. September 2012 2012
 CoFounder and CoOrganizer. Number Theory Seminar. Duke University. 2012  June 2020 2012  2020
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