Examples of wild ramification in an enriched riemann–hurwitz formula

Journal Article

© 2020 American Mathematical Society. M. Levine proved an enrichment of the classical Riemann–Hurwitz formula to an equality in the Grothendieck–Witt group of quadratic forms. In its strongest form, Levine’s theorem includes a technical hypothesis on ramification relevant in positive characteristic. We describe what happens when the hypotheses are weakened by showing an analogous Riemann–Hurwitz formula and describing an example suggested by S. Saito.

Full Text

Duke Authors

Cited Authors

  • Bethea, C; Kass, JL; Wickelgren, K

Published Date

  • January 1, 2020

Published In

Volume / Issue

  • 745 /

Start / End Page

  • 69 - 82

Electronic International Standard Serial Number (EISSN)

  • 1098-3627

International Standard Serial Number (ISSN)

  • 0271-4132

Digital Object Identifier (DOI)

  • 10.1090/conm/745/15022