1987

Abstract Consider the nonlinear equation in $R$, $f\left( x\right) =0$, where $f:A\rightarrow B$, $(A,B\subseteq \mathbb{R})$ which is assumed bijective. The Lagrange…

Abstract Let $X_{1},X_{2}$ be two complete metric spaces, $X=X_{1}\times X_{2}$ and the nonlinear mappings $F_{1}:X\rightarrow X_{1},\ F_{2}:X\rightarrow X_{2}$. In order…