Related Articles ( G−contaction )
A Brief Note Concerning Non-Self Contractions in Banach Spaces Endowed with a Graph
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.
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.