I shall discuss joint work with John L. Lewis on the solvability of boundary value problems for the heat equation in non-cylindrical (i.e., time-varying) domains, whose boundaries are in some sense minimally smooth in both space and time. The emphasis will be on the Neumann problem with data in . A somewhat surprising feature of our results is that, in contrast to the cylindrical case, the optimal results hold when , with the situation getting progressively worse as approaches . In particular, in our setting, the Neumann problem fails to be solvable when the data is taken to belong to the Hardy space .
@article{JEDP_1998____A6_0, author = {Hofmann, Steve and Lewis, John L.}, title = {The ${L}^p$ Neumann problem for the heat equation in non-cylindrical domains}, journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, year = {1998}, pages = {1-7}, mrnumber = {1640379}, language = {en}, url = {http://dml.mathdoc.fr/item/JEDP_1998____A6_0} }
Hofmann, Steve; Lewis, John L. The ${L}^p$ Neumann problem for the heat equation in non-cylindrical domains. Journées équations aux dérivées partielles, (1998), pp. 1-7. http://gdmltest.u-ga.fr/item/JEDP_1998____A6_0/
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