Nonuniformly elliptic equations: Positivity of weak solutions

Coffman, C. V.; Duffin, R. J.; Mizel, V. J.

doi:10.1090/S0002-9904-1973-13235-5

Bulletin of the American Mathematical Society

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ISSN 1088-9485 (online) ISSN 0273-0979 (print)

The 2020 MCQ for Bulletin of the American Mathematical Society is 0.84.

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Nonuniformly elliptic equations: Positivity of weak solutions
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by C. V. Coffman, R. J. Duffin and V. J. Mizel PDF

Bull. Amer. Math. Soc. 79 (1973), 496-499

References

Charles V. Coffman, Existence and uniqueness of positive eigenfunctions for a class of quasilinear elliptic boundary value problems of sublinear type, Indiana Univ. Math. J. 22 (1972/73), 1017–1027. MR 316887, DOI 10.1512/iumj.1973.22.22085
S. N. Kružkov, Some properties of solutions of elliptic equations, Dokl. Akad. Nauk SSSR 150 (1963), 470–473 (Russian). MR 0150442
M. K. V. Murthy and G. Stampacchia, Boundary value problems for some degenerate-elliptic operators, Ann. Mat. Pura Appl. (4) 80 (1968), 1–122 (English, with Italian summary). MR 249828, DOI 10.1007/BF02413623
Neil S. Trudinger, On the regularity of generalized solutions of linear, non-uniformly elliptic equations, Arch. Rational Mech. Anal. 42 (1971), 50–62. MR 344656, DOI 10.1007/BF00282317