2024/10/22 by Cruz-Uribe, David
#35B45 #35D30 #35J25 #46E30 #Analysis of PDEs (math.AP) #FOS: Mathematics
paper · doi:10.48550/arxiv.2410.17054
It is well known that non-negative solutions to the Dirichlet problem Δu =f in a bounded domain Ω, where f∈ Lq(Ω), q>\fracn2, satisfy ‖u‖L^∞(Ω) ≤ C‖f‖Lq(Ω). We generalize this result by replacing the Laplacian with a degenerate elliptic operator, and we show that we can take the data f in an Orlicz space LA(Ω) that, in the classical case, lies strictly between L(n)/(2)(Ω) and Lq(Ω), q>\fracn2.