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Ali Taghavi

Ali Taghavi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
HIndex:
Faculty: Faculty of Mathematical Sciences
Address: Department of Mathematics, Faculty of Mathematical Sciences, University of Mazandaran, Babolsar, Iran
Phone: 01135302460

Research

Title
Some Reverse Inequalities for Matrices on Indefinite Inner Product Spaces
Type
JournalPaper
Keywords
Reverse Schwarz inequality; Reverse Heinz–Kato–Furuta inequality; Indefinite inner product; Minkowski inner product
Year
2016
Journal INDAGATIONES MATHEMATICAE-NEW SERIES
DOI
Researchers Ali Taghavi ، Haji Mohammad Nazari ، vahid Darvish

Abstract

In this paper, we generalize the following inequality due to N. Bebiano et al which states that for -contraction for any with or time-like and . The above inequality gives a reverse weighted mixed Schwarz inequality. Also, we prove some reverse inequalities for indefinite inner product space. Moreover, we establish some refinements for the reverse of Schwarz inequality as well.