Boundary blow-up solutions in the unit ball : asymptotics, uniqueness and symmetry
Boundary blow-up solutions in the unit ball : asymptotics, uniqueness and symmetry
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DOI:
10.1016/j.jde.2010.02.023
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发表时间:
2009-01
期刊:
影响因子:
--
通讯作者:
O. Costin;L. Dupaigne
中科院分区:
文献类型:
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作者:
O. Costin;L. Dupaigne
We calculate the full asymptotic expansion of boundary blow-up solutions (see Eq. (1) below), for any nonlinearity f. Our approach enables us to state sharp qualitative results regarding uniqueness and radial symmetry of solutions, as well as a characterization of nonlinearities for which the blow-up rate is universal. Lastly, we study in more detail the standard nonlinearities f(u)=up, p>1.