Abstract
Quasiconcavity, the condition that the level sets of a positive graph are convex, is known to hold for solutions of certain semilinear equations. We survey some techniques that can be used to show quasiconcavity for solutions of quasilinear elliptic equations with form similar to the equation of constant mean curvature.
Citation
John McCuan. "CONCAVITY, QUASICONCAVITY, AND QUASILINEAR ELLIPTIC EQUATIONS." Taiwanese J. Math. 6 (2) 157 - 174, 2002. https://doi.org/10.11650/twjm/1500407426
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