Existence of Regular Solutions with Convex Levels for Semilinear Elliptic Equations with Nonmonotone L^1 Nonlinearities Part I: An Approximating Free Boundary Problem
Peter LaurenceE. Stredulinsky
Indiana University Mathematics Journal
1990
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10.1512/iumj.1990.39.39051
10.1512/iumj.1990.39.39051
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Indiana Univ. Math. J. 39 (1990) 1081 - 1114
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