Volume 4 (2022)
Volume 3 (2021)
Volume 2 (2020)
Volume 1 (2019)
Number of Articles: 6
Some critical remarks of recent results on F-contractions in b-metric spaces
Volume 4, Issue 2 , April 2022, Pages 1-10
Abstract
In this paper, we analyze, generalize and correct some recent results on F-contractions within b-metric spaces. In all results, our only assumption is the strict growth of the function ... Read More
Automatic continuity of almost Jordan derivations on special Jordan Banach algebras
Volume 4, Issue 2 , April 2022, Pages 11-16
Abstract
The following is the question form of Kaplansky conjecture of 1958. Is every derivation on semisimple Banach algebra continuous? Kaplansky conjecture was proved by Johnson and Sinclair ... Read More
t-norms over fuzzy ideals (implicative, positive implicative) of BCK-algebras
Volume 4, Issue 2 , April 2022, Pages 17-34
Abstract
In this paper, we use the notion of t-norms to introduce fuzzy subalgebras, fuzzy ideals, fuzzy implicative ideals, fuzzy positive implicative ideals in BCK-algebras. Next, we clarify ... Read More
Exact controllability and continuous dependence of solution of a conformable fractional control system
Volume 4, Issue 2 , April 2022, Pages 35-46
Abstract
The exact controllability of a conformable fractional differential system is established in this paper. The system is described by a non-densely defined linear part satisfying the Hille ... Read More
Notes on the stability of multimixed additive-quartic mappings
Volume 4, Issue 2 , April 2022, Pages 47-56
Abstract
In this article, we prove the Hyers-Ulam stability of multimixed additive-quartic functional equations in the setting of Banach spaces by applying a fixed point method and moreover ... Read More
Fixed point theorems for occasionally weakly compatible maps in neutrosophic metric spaces
Volume 4, Issue 2 , April 2022, Pages 57-69