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Relation-Theoretic Contraction via a Triplet of Auxiliary Functions and an Application to Ordinary Differential Equations

open access: yesJournal of Function Spaces
In this manuscript, we establish some results on fixed points by using a triplet of auxiliary functions endowed with a locally J-transitive binary relation.
Shahbaz Ali   +3 more
doaj   +1 more source

Un'applicazione della teoria dei semigruppi ordinati nell'ambito della teoria delle decisioni

open access: yesLe Matematiche, 1996
In this paper we introduce in the semigroup S, whose elements are to be evalued in terms of preference in a particular situation, a pre-order defined through semigroups of S.
Elisabetta Allevi
doaj  

Comparing the expressiveness of downward fragments of the relation algebra with transitive closure on trees

open access: green, 2019
Jelle Hellings   +6 more
openalex   +2 more sources

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