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Note on strict contractive conditions and common fixed point theorems with application

Bisht R. K.

Demonstratio Mathematica

2017

Vol. 50, nr 1

116--118

In this note we point out errors in the proofs of first two theorems contained in Demonstratio Mathematica, Vol. XLVI, no 2, 2013, 405-413. We also rectify the erratic theorems by employing a proper setting.

An alternative and easy approach to fixed point results via simulation functions

Radenović S., Vetro F., Vujaković J.

Demonstratio Mathematica

2017

Vol. 50, nr 1

223--230

We discuss, extend, improve and enrich results on simulation functions established by several authors. Furthermore, by using Lemma 2.1 of Radenović et al. [Bull. Iran. Math. Soc., 2012, 38, 625], we get much shorter and nicer proofs than the corresponding ones in the existing literature.