Abstract A viscous incompressible fluid reacts chemically with a rotating disk. We establish the diffusion equation in the boundary layer…

Abstract Let \(X\) be a Banach space, \(Y\) a normed space, \(G:X\rightarrow Y\) a nonlinear operator, and \(G\left( x\right) =0\)…

Abstract Let \(X\) be a Banach space, \(Y\) a normed space, \(P:X\rightarrow Y\) a nonlinear operator and the equation \(P\left(…