General Letters in Mathematics

Related Articles ( property (M) )

A Brief Note Concerning Non-Self Contractions in Banach Spaces Endowed with a Graph

Esra Yolacan

In this paper, we establish the concept of non-self Hardy-Rogers contractions on Banach spaces involving a graph. We also prove some fixed point theorems for such mappings. The results of this paper extend and generalize various known results in the literature.

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On the Lower Estimations for Maximal (±1)-Determinants


It is suggested several lower estimations for the determinants of matrices consisting of elements +1 and −1, improving the known Hadamard’s lower estimation.

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