Geometric inequalities in real Banach spaces with applications

Abstract

"In this paper, new geometric inequalities are established in real Banach spaces. As an application, a new iterative algorithm is proposed for approximating a solution of a split equality fixed point problem (SEFPP) for a quasi-$\phi$-nonexpansive semigroup. It is proved that the sequence generated by the algorithm converges {\it strongly} to a solution of the SEFPP in $p$-uniformly convex and uniformly smooth real Banach spaces, $p>1$. Furthermore, the theorem proved is applied to approximate a solution of a variational inequality problem. All the theorems proved are applicable, in particular, in $L_p$, $l_p$ and the Sobolev spaces, $W_p^m(\Omega)$, for $p$ such that $2<p<\infty.$ "