Results 11 to 20 of about 2,902,153 (358)

A note on first-order spectra with binary relations [PDF]

Logical Methods in Computer Science, 2018
The spectrum of a first-order sentence is the set of the cardinalities of its finite models. In this paper, we consider the spectra of sentences over binary relations that use at least three variables.
Eryk Kopczynski, Tony Tan
doaj   +3 more sources

Selective games on binary relations [PDF]

Topology and its Applications, 2015
28 ...
Dias, Rodrigo R., Scheepers, Marion
openaire   +5 more sources

Induction on fields of binary relations. [PDF]

Notre Dame Journal of Formal Logic, 1972
W. Russell Belding
openalex   +5 more sources

A game of composing binary relations [PDF]

RAIRO. Informatique théorique, 1982
P. Goralčík, Zdeněk Hedrlín, Vácłav Koubek, J. Ryšunková   +3 more
openalex   +4 more sources

Compressed Representation of Dynamic Binary Relations with Applications [PDF]

Information Systems, 2017
Nieves R. Brisaboa, Ana Cerdeira-Pena, Guillermo de Bernardo, Gonzalo Navarro   +3 more
openalex   +3 more sources

Compressed Dynamic Binary Relations [PDF]

Data Compression Conference, 2012
Nieves R. Brisaboa, Guillermo de Bernardo, Gonzalo Navarro   +2 more
openalex   +2 more sources

Geraghty Type Contractions in Relational Metric Space with Applications to Fractional Differential Equations

Fractal and Fractional, 2023
The present manuscript is devoted to investigating some existence and uniqueness results on fixed points by employing generalized contractions in the context of metric space endued with a weak class of transitive relation.
Ahmed Alamer, Nidal H. E. Eljaneid, Musaad S. Aldhabani, Nifeen H. Altaweel, Faizan Ahmad Khan   +4 more
doaj   +1 more source

Almost Nonlinear Contractions under Locally Finitely Transitive Relations with Applications to Integral Equations

Mathematics, 2023
This article consists of some new fixed point theorems verifying relation-theoretic strict almost nonlinear contractions that are preserved by a locally finitely transitive relation. Our results improve certain well-known results in the literature.
Faizan Ahmad Khan, Musaad S. Aldhabani, Ahmed Alamer, Esmail Alshaban, Fahad M. Alamrani, Hamid I. A. Mohammed   +5 more
doaj   +1 more source

A Relation-Theoretic Matkowski-Type Theorem in Symmetric Spaces

Axioms, 2021
In this paper, we present a fixed-point theorem in R-complete regular symmetric spaces endowed with a locally T-transitive binary relation R using comparison functions that generalizes several relevant existing results.
Based Ali, Mohammad Imdad, Salvatore Sessa   +2 more
doaj   +1 more source

Relation-theoretic almost ϕ-contractions with an application to elastic beam equations

AIMS Mathematics, 2023
In this article, we prove some results on existence and uniqueness of fixed points for an almost $ \phi $-contraction mapping defined on a metric space endowed with an amorphous relation.
Ebrahem A. Algehyne, Nifeen Hussain Altaweel, Mounirah Areshi, Faizan Ahmad Khan   +3 more
doaj   +1 more source