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Unique continuation for second-order parabolic operators at the initial time

Authors: Paolo Albano and Daniel Tataru
Journal: Proc. Amer. Math. Soc. 132 (2004), 1077-1085
MSC (2000): Primary 35K10, 35B60
Published electronically: September 18, 2003
MathSciNet review: 2045423
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Abstract: We consider second-order parabolic equations with time independent coefficients. Under reasonable assumptions, it is known that the fundamental solution satisfies certain Gaussian bounds related to the associated geodesic distance. In this article we prove a sharp unique continuation property at the initial time which matches exactly the above-mentioned kernel bounds.

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Additional Information

Paolo Albano
Affiliation: Dipartimento di Matematica, Università di Bologna, 40127 Bologna, Italy

Daniel Tataru
Affiliation: Department of Mathematics, University of California Berkeley, Berkeley, California 94720

Received by editor(s): November 19, 2002
Published electronically: September 18, 2003
Additional Notes: The second author was supported in part by NSF grant DMS 9970297
Communicated by: David S. Tartakoff
Article copyright: © Copyright 2003 American Mathematical Society

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