A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold
<p>In this paper we prove a new monotonicity formula for the heat equation via a generalized family of entropy functionals. This family of entropy formulas generalizes both Perelman’s entropy for evolving metric and Ni’s entropy on static manifold. We show that this entropy satisfies a pointwi...
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doaj-06d3dc77a3e74afe80d1c238cef482c42021-08-26T13:44:36ZengEtamaths PublishingInternational Journal of Analysis and Applications2291-86392014-08-016111786A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static ManifoldAbimbola Abolarinwa0UNIVERSITY OF SUSSEX, BRIGHTON, BN1 9QH, UK.<p>In this paper we prove a new monotonicity formula for the heat equation via a generalized family of entropy functionals. This family of entropy formulas generalizes both Perelman’s entropy for evolving metric and Ni’s entropy on static manifold. We show that this entropy satisfies a pointwise differential inequality for heat kernel. The consequences of which are various gradient and Harnack estimates for all positive solutions to the heat equation on compact manifold.</p>http://etamaths.com/index.php/ijaa/article/view/357 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Abimbola Abolarinwa |
spellingShingle |
Abimbola Abolarinwa A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold International Journal of Analysis and Applications |
author_facet |
Abimbola Abolarinwa |
author_sort |
Abimbola Abolarinwa |
title |
A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold |
title_short |
A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold |
title_full |
A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold |
title_fullStr |
A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold |
title_full_unstemmed |
A New Entropy Formula and Gradient Estimates for the Linear Heat Equation on Static Manifold |
title_sort |
new entropy formula and gradient estimates for the linear heat equation on static manifold |
publisher |
Etamaths Publishing |
series |
International Journal of Analysis and Applications |
issn |
2291-8639 |
publishDate |
2014-08-01 |
description |
<p>In this paper we prove a new monotonicity formula for the heat equation via a generalized family of entropy functionals. This family of entropy formulas generalizes both Perelman’s entropy for evolving metric and Ni’s entropy on static manifold. We show that this entropy satisfies a pointwise differential inequality for heat kernel. The consequences of which are various gradient and Harnack estimates for all positive solutions to the heat equation on compact manifold.</p> |
url |
http://etamaths.com/index.php/ijaa/article/view/357 |
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AT abimbolaabolarinwa anewentropyformulaandgradientestimatesforthelinearheatequationonstaticmanifold AT abimbolaabolarinwa newentropyformulaandgradientestimatesforthelinearheatequationonstaticmanifold |
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1721193555409502208 |