Existence and Uniqueness of Positive Eigenfunctions for a Class of Quasilinear Elliptic Boundary Value Problems of Sublinear Type
Charles Coffman
Indiana University Mathematics Journal
1973
text
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10.1512/iumj.1973.22.22085
10.1512/iumj.1973.22.22085
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Indiana Univ. Math. J. 22 (1973) 1017 - 1027
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