On Pairs of Positive Solutions for a Class of Semilinear Elliptic Problems
Djairo de FigueiredoP. Lions
Indiana University Mathematics Journal
1985
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10.1512/iumj.1985.34.34031
10.1512/iumj.1985.34.34031
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Indiana Univ. Math. J. 34 (1985) 591 - 606
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