Department of Mathematics
University of South Florida
Tampa, FL 33620, USA
email: tbieske@math.usf.edu
Thomas Bieske
Abstract:
We define two notions of viscosity solutions to subparabolic
equations in Grushin-type spaces, depending on whether the test
functions concern only the past or both the past and the future.
We then prove a comparison principle for a class of subparabolic
equations and show the sufficiency of considering the test functions
that concern only the past.
Submitted November 27, 2006. Published February 14, 2007.
Math Subject Classifications: 35K55, 49L25, 53C17.
Key Words: Grushin-type spaces; parabolic equations; viscosity solutions.
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Thomas Bieske Department of Mathematics University of South Florida Tampa, FL 33620, USA email: tbieske@math.usf.edu |
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