2018/12/08 by Igor E. Verbitsky, Verbitsky, Igor E. · 1 citation
Computer Science · Mathematics · #42B37 #Advanced Mathematical Modeling in Engineering #Analysis of PDEs (math.AP) #Classical Analysis and ODEs (math.CA) #FOS: Mathematics #Nonlinear Partial Differential Equations #Numerical methods in inverse problems #Primary 35J92 #Secondary 35J20
paper · pdf · doi:10.48550/arxiv.1812.03418
openalex publication_date 2018/12/08 · openalex created_date 2022/08/01 · openalex updated_date 2026/07/28
We prove an analogue of Wolff's inequality for the so-called intrinsic\nnonlinear potentials associated with the quasilinear elliptic equation n-
Deltap u =
sigma uq
quad
textin
;
;
mathbbRn, in the\nsub-natural growth case 0<q< p-1, where \Δpu = ÷( |\∇ν|p-2 \∇ u ) is the p-Laplacian, and \σ is a nonnegative\nmeasurable function (or measure) on \ℝn.\n As an application, we give a necessary and sufficient condition for the\nexistence of a positive solution u \∈ Lr(\ℝn) (0<r<\∞)\nto this problem, which was open even in the case p=2.\n Our version of Wolff's inequality for intrinsic nonlinear potentials relies\non a new characterization of discrete Littlewood-Paley spaces fp,\nq(\σ) defined in terms of characteristic functions of dyadic cubes in\n\ℝn.\n