SINGULAR POSITIVE RADIAL SOLUTIONS FOR A GENERAL SEMILINEAR ELLIPTIC EQUATION  被引量:2

SINGULAR POSITIVE RADIAL SOLUTIONS FOR A GENERAL SEMILINEAR ELLIPTIC EQUATION

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作  者:杨芬 

机构地区:[1]College of Science,Wuhan University of Science and Technology

出  处:《Acta Mathematica Scientia》2012年第6期2377-2387,共11页数学物理学报(B辑英文版)

基  金:Supported by the Natural Science Foundation of China(10901126)

摘  要:The existence and uniqueness of singular solutions decaying like r^-m(see (1.4)) of the equation △u+k∑i=1ci|x|liupi=0,x∈R^N are obtained, wheren≥3, ci 〉0, li〉-2, i=1,2,..,k, pi〉 1, i=l,2,-..,kandthe separation structure of singular solutions decaying like r^-(n-2) of eq. (0.1) are discussed. moreover, we obtain the explicit critical exponent ps (l) (see (1.9)).The existence and uniqueness of singular solutions decaying like r^-m(see (1.4)) of the equation △u+k∑i=1ci|x|liupi=0,x∈R^N are obtained, wheren≥3, ci 〉0, li〉-2, i=1,2,..,k, pi〉 1, i=l,2,-..,kandthe separation structure of singular solutions decaying like r^-(n-2) of eq. (0.1) are discussed. moreover, we obtain the explicit critical exponent ps (l) (see (1.9)).

关 键 词:singular solution DECAY separation property semilinear elliptic equation 

分 类 号:O241.82[理学—计算数学]

 

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