scholarly journals On multiple solutions of the Neumann problem involving the critical Sobolev exponent

2004 ◽  
Vol 101 (2) ◽  
pp. 203-220 ◽  
Author(s):  
Jan Chabrowski
2006 ◽  
Vol 73 (3) ◽  
pp. 353-364 ◽  
Author(s):  
Tsing-San Hsu ◽  
Huei-Li Lin

In this paper, we show that if q(x) satisfies suitable conditions, then the Neumann problem -Δu+u = q(x)ⅠuⅠp−2u in Ω has at least two solutions of which one is positive and the other changes sign.


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