@article{MTMT:31416380, title = {Pointwise Gradient Estimates in Multi-dimensional Slow Diffusion Equations with a Singular Quenching Term}, url = {https://m2.mtmt.hu/api/publication/31416380}, author = {Nguyen Anh Dao and Ildefonso Diaz, Jesus and Quan Ba Hong Nguyen}, doi = {10.1515/ans-2020-2076}, journal-iso = {ADV NONLINEAR STUD}, journal = {ADVANCED NONLINEAR STUDIES}, volume = {20}, unique-id = {31416380}, issn = {1536-1365}, abstract = {We consider the high-dimensional equation partial derivative(t)u -Delta u(m) + u(-beta)chi({u>0}) = 0, extending the mathematical treatment made in 1992 by B. Kawohl and R. Kersner for the one-dimensional case. Besides the existence of a very weak solution u is an element of C([0, T]; L-delta(1)(Omega)), with u(-beta)chi({u>0}) is an element of L-1 ((0, T) x Omega), delta(x) = d(x, partial derivative Omega), we prove some pointwise gradient estimates for a certain range of the dimension N, m >= 1 and beta is an element of (0, m), mainly when the absorption dominates over the diffusion (1 <= m < 2 + beta ). In particular, a new kind of universal gradient estimate is proved when m + beta <= 2. Several qualitative properties (such as the finite time quenching phenomena and the finite speed of propagation) and the study of the Cauchy problem are also considered.}, keywords = {Free boundary; Singular Absorption and Nonlinear Diffusion Equations; Pointwise Gradient Estimates; Quenching Phenomenon}, year = {2020}, eissn = {2169-0375}, pages = {477-502} } @article{MTMT:25746542, title = {Propagation profile of support for evolution p-Laplacian with convection in half space}, url = {https://m2.mtmt.hu/api/publication/25746542}, author = {Jin, Chunhua and Yin, Jingxue and Zheng, Sining}, doi = {10.1016/j.jmaa.2014.02.064}, journal-iso = {J MATH ANAL APPL}, journal = {JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS}, volume = {416}, unique-id = {25746542}, issn = {0022-247X}, year = {2014}, eissn = {1096-0813}, pages = {710-723} } @article{MTMT:21683395, title = {Infinite-time quenching in a fast diffusion equation with strong absorption}, url = {https://m2.mtmt.hu/api/publication/21683395}, author = {Winkler, M}, doi = {10.1007/s00030-008-0052-z}, journal-iso = {NODEA-NONLINEAR DIFF}, journal = {NODEA-NONLINEAR DIFFERENTIAL EQUATIONS AND APPLICATIONS}, volume = {16}, unique-id = {21683395}, issn = {1021-9722}, year = {2009}, eissn = {1420-9004}, pages = {41-61} } @article{MTMT:25727647, title = {Nonuniqueness in the quenching problem}, url = {https://m2.mtmt.hu/api/publication/25727647}, author = {Winkler, Michael}, doi = {10.1007/s00208-007-0123-1}, journal-iso = {MATH ANN}, journal = {MATHEMATISCHE ANNALEN}, volume = {339}, unique-id = {25727647}, issn = {0025-5831}, year = {2007}, eissn = {1432-1807}, pages = {559-597} }