In the present paper, we consider elliptic equations with nonlinear and nonlao mogeneous Robin boundary conditions of the type {-div(B(x,u)△u) = f in Ω,u=0 on Гo, B(x,u)Vu·n^-+γ(x)h(u) = 9 on Г1,w...In the present paper, we consider elliptic equations with nonlinear and nonlao mogeneous Robin boundary conditions of the type {-div(B(x,u)△u) = f in Ω,u=0 on Гo, B(x,u)Vu·n^-+γ(x)h(u) = 9 on Г1,where f and g are the element of L^1(Ω) and L^1(Г1), respectively. We define a notion of renormalized solution and we prove the existence of a solution. Under additionM assumptions on the matrix field B we show that the renormalized solution is unique.展开更多
基金University of the Philippines Diliman for their support
文摘In the present paper, we consider elliptic equations with nonlinear and nonlao mogeneous Robin boundary conditions of the type {-div(B(x,u)△u) = f in Ω,u=0 on Гo, B(x,u)Vu·n^-+γ(x)h(u) = 9 on Г1,where f and g are the element of L^1(Ω) and L^1(Г1), respectively. We define a notion of renormalized solution and we prove the existence of a solution. Under additionM assumptions on the matrix field B we show that the renormalized solution is unique.