Universal estimate of the gradient for parabolic equations
We suggest a modification of the estimate for weighted Sobolev norms of solutions of parabolic equations such that the matrix of the higher order coefficients is included into the weight for the gradient. More precisely, we found the upper limit estimate that can be achieved by variations of the zer...
| Main Author: | |
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| Format: | Journal Article |
| Published: |
IOP Publishing
2008
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| Online Access: | http://hdl.handle.net/20.500.11937/16598 |
| _version_ | 1848749222928580608 |
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| author | Dokuchaev, Nikolai |
| author_facet | Dokuchaev, Nikolai |
| author_sort | Dokuchaev, Nikolai |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We suggest a modification of the estimate for weighted Sobolev norms of solutions of parabolic equations such that the matrix of the higher order coefficients is included into the weight for the gradient. More precisely, we found the upper limit estimate that can be achieved by variations of the zero-order coefficient. As an example of applications, an asymptotic estimate was obtained for the gradient at initial time. The constant in the estimates is the same for all possible choices of the dimension, domain, time horizon and the coefficients of the parabolic equation. As an another example of application, existence and regularity results are obtained for parabolic equations with time delay for the gradient. |
| first_indexed | 2025-11-14T07:17:31Z |
| format | Journal Article |
| id | curtin-20.500.11937-16598 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:17:31Z |
| publishDate | 2008 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-165982017-09-13T15:42:22Z Universal estimate of the gradient for parabolic equations Dokuchaev, Nikolai We suggest a modification of the estimate for weighted Sobolev norms of solutions of parabolic equations such that the matrix of the higher order coefficients is included into the weight for the gradient. More precisely, we found the upper limit estimate that can be achieved by variations of the zero-order coefficient. As an example of applications, an asymptotic estimate was obtained for the gradient at initial time. The constant in the estimates is the same for all possible choices of the dimension, domain, time horizon and the coefficients of the parabolic equation. As an another example of application, existence and regularity results are obtained for parabolic equations with time delay for the gradient. 2008 Journal Article http://hdl.handle.net/20.500.11937/16598 10.1088/1751-8113/41/21/215202 IOP Publishing fulltext |
| spellingShingle | Dokuchaev, Nikolai Universal estimate of the gradient for parabolic equations |
| title | Universal estimate of the gradient for parabolic equations |
| title_full | Universal estimate of the gradient for parabolic equations |
| title_fullStr | Universal estimate of the gradient for parabolic equations |
| title_full_unstemmed | Universal estimate of the gradient for parabolic equations |
| title_short | Universal estimate of the gradient for parabolic equations |
| title_sort | universal estimate of the gradient for parabolic equations |
| url | http://hdl.handle.net/20.500.11937/16598 |