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Hossein Piri

Hossein Piri

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
HIndex: 0/00
Faculty: Faculty of Basic Sciences
Address:
Phone: 04137745000-1642

Research

Title
FIXED POINT AND NONLINEAR ERGODIC THEOREMS FOR SOME NEW TYPE SEMIGROUPS OF MAPPINGS
Type
JournalPaper
Keywords
Fixed point theorem, generalized nonlinear ergodic theorem, nonspreading retraction, convergence theorem
Year
2022
Journal Fixed Point Theory
DOI
Researchers Hossein Piri ، Mostafa Ghasemi

Abstract

In the present paper, some new type of semigroups of mappings are introduced. Then, by using the theory of invariant means, fixed point theorem, and existence of nonspreading retraction for these semigroup are deduced and the illustrative examples are given. Also, weak convergence theorem of Mann’s type, generalized Baillon’s nonlinear ergodic theorem and strong convergence theorem of Halpern’s type for such semigroups in the Hilbert space are considered. At the end, some applications are investigated.