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Stopping and merging problems for the porous media equation

Publication ,  Journal Article
Witelski, TP
Published in: IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications)
December 1, 1995

A class of boundary value problems for nonlinear diffusion equations is studied. Using singular perturbation theory and matched asymptotic expansions, the author analyses the interactions of compact-support solutions of the porous media equation with fixed boundaries and with other solutions. The boundary layer analysis yields results on how 'stopping' and 'merging' disturbances at the interface propagate back into the solution. Analysis is also extended to cover merging problems for the fourth-order lubrication equation. © 1995 Oxford University Press.

Duke Scholars

Published In

IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications)

DOI

ISSN

0272-4960

Publication Date

December 1, 1995

Volume

54

Issue

3

Start / End Page

227 / 243

Related Subject Headings

  • Applied Mathematics
  • 4901 Applied mathematics
  • 0199 Other Mathematical Sciences
  • 0103 Numerical and Computational Mathematics
  • 0102 Applied Mathematics
 

Citation

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ICMJE
MLA
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Witelski, T. P. (1995). Stopping and merging problems for the porous media equation. IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications), 54(3), 227–243. https://doi.org/10.1093/imamat/54.3.227
Witelski, T. P. “Stopping and merging problems for the porous media equation.” IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications) 54, no. 3 (December 1, 1995): 227–43. https://doi.org/10.1093/imamat/54.3.227.
Witelski TP. Stopping and merging problems for the porous media equation. IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications). 1995 Dec 1;54(3):227–43.
Witelski, T. P. “Stopping and merging problems for the porous media equation.” IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications), vol. 54, no. 3, Dec. 1995, pp. 227–43. Scopus, doi:10.1093/imamat/54.3.227.
Witelski TP. Stopping and merging problems for the porous media equation. IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications). 1995 Dec 1;54(3):227–243.
Journal cover image

Published In

IMA Journal of Applied Mathematics (Institute of Mathematics and Its Applications)

DOI

ISSN

0272-4960

Publication Date

December 1, 1995

Volume

54

Issue

3

Start / End Page

227 / 243

Related Subject Headings

  • Applied Mathematics
  • 4901 Applied mathematics
  • 0199 Other Mathematical Sciences
  • 0103 Numerical and Computational Mathematics
  • 0102 Applied Mathematics