Zobrazeno 1 - 10
of 3 571
pro vyhledávání: '"binary relation"'
Autor:
Khantwal Deepak, Pant Rajendra
Publikováno v:
Mathematica Moravica, Vol 28, Iss 1, Pp 1-15 (2024)
In this paper, we establish a relation-theoretic version of the results presented by Kim et al. (Journal of Nonlinear and Convex Analysis, 16 (9) (2015), 1779-1786). To showcase the versatility of our results, we furnish some illustrative examples. F
Externí odkaz:
https://doaj.org/article/dee6bee2348a4e3b97747e230f9f8731
Autor:
Doaa Filali, Faizan Ahmad Khan
Publikováno v:
Mathematics, Vol 12, Iss 20, p 3262 (2024)
The present study deals with some fixed-point outcomes under a nonlinear formulation of strict almost contractions in a metric space endued with an arbitrary relation. The outcomes established herein enhance and develop various existing outcomes. To
Externí odkaz:
https://doaj.org/article/1035efda3e644097836a447746a5891b
Publikováno v:
Acta Universitatis Sapientiae: Mathematica, Vol 15, Iss 2, Pp 314-336 (2023)
The aim is to introduce some relation theoretic variants of F−contraction in an F−metric space endowed with a binary relation R and to prove results for its fixed point. In the sequel, several classes of contractions are sharpened, generalized, a
Externí odkaz:
https://doaj.org/article/b0c36012f50d4b26aeedb8dd4c4563ec
Publikováno v:
Boundary Value Problems, Vol 2023, Iss 1, Pp 1-21 (2023)
Abstract In this paper, we establish a relation-theoretic set-valued version of the fixed point result of Ćirić and Prešić (Acta Math. Univ. Comen. LXXVI(2):143–147, 2007) on metric spaces endowed with an arbitrary binary relation. The results
Externí odkaz:
https://doaj.org/article/d929293df6cf4726bd4cfe9836286557
Publikováno v:
Surveys in Mathematics and its Applications, Vol 18 (2023), Pp 59-72 (2023)
In this paper we establish a result in the fixed point theory of multivalued mappings. This is done by combining three prevalent trends in fixed point theory. Some consequences of the main theorem are discussed. We also provide an illustrative exampl
Externí odkaz:
https://doaj.org/article/8cc3ca7375aa44a1846c44728bf0626f
Publikováno v:
Axioms, Vol 13, Iss 5, p 292 (2024)
Recently, Milles and Hammami presented and studied the concept of a neutrosophic topology generated by a neutrosophic relation. As a continuation in the same direction, this paper studies the concepts of neutrosophic ideals and neutrosophic filters o
Externí odkaz:
https://doaj.org/article/6732234d3171408c988b4c1d5a6c879e
Autor:
LI Yanyan, QIN Keyun
Publikováno v:
Jisuanji kexue, Vol 50, Iss 2, Pp 173-177 (2023)
Rough set theory is a mathematical tool to deal with uncertain problems.The core notion of rough set theory is appro-ximation operators.Pawlak approximation operators based on equivalence relations cab be extended to generalized rough approximation o
Externí odkaz:
https://doaj.org/article/30298e7cc7c44ebfb54f291f6ccba01c
Publikováno v:
AIMS Mathematics, Vol 8, Iss 4, Pp 7881-7898 (2023)
A multigranulation rough set over two universes delivers a unique perspective on the combination of multigranulation information. This paper presents the pessimistic multignualtion rough set over dual universes based on soft binary relations. Firstly
Externí odkaz:
https://doaj.org/article/cb1d42637f964892beb5d3b3a97e9d9a