Results 21 to 30 of about 611,491 (284)
Ordinal notions of submodularity [PDF]
, 2008 We consider several ordinal formulations of submodularity, defined for arbitrary binary relations on lattices. Two of these formulations are essentially due to Kreps [Kreps, D.M., 1979.
Chambers, Christopher P. +1 more
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Фінансово-кредитна діяльність: проблеми теорії та практики, 2020 The methods of making a collective decision and choosing group matching procedures are analyzed. It is assumed that the methods of evaluation are given in the scales of qualitative order, including the binary relations of alternatives.
K.A. Fisun +3 more
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Algebras of Binary Isolating Formulas for Tensor Product Theories
Известия Иркутского государственного университета: Серия "Математика", 2022 Algebras of distributions of binary isolating and semi-isolating formulae are derived objects for a given theory and reflect binary formula relations between 1-type realizations.
D.Yu. Emel’yanov
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Quasiuniversal properties of neutron star mergers [PDF]
, 2014 Binary neutron star mergers are studied using nonlinear 3+1 numerical relativity simulations and the analytical effective-one-body (EOB) model. The EOB model predicts quasiuniversal relations between the mass-rescaled gravitational wave frequency and the
Balmelli, Simone +4 more
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Upper Semicontinuous Extensions of Binary Relations [PDF]
SSRN Electronic Journal, 2002 The notion of consistency in binary relations is considered. The authors provide sufficient conditions for the existence of upper semicontinuous extensions of consistent rather than transitive relations. For asymmetric relations, consistency and upper semicontinuity suffice.
BOSSERT, Walter +2 more
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Algebras of Binary Isolating Formulas for Theories of Root Products of Graphs
Известия Иркутского государственного университета: Серия "Математика", 2021 Algebras of distributions of binary isolating and semi-isolating formulas are derived objects for given theory and reflect binary formula relations between realizations of 1-types.
D.Yu. Emel’yanov
doaj +1 more source
Quasiorders, Tolerance Relations and Corresponding “Partitions” [PDF]
, 2016 The paper deals with a generalization of the notion of partition for wider classes of binary relations than equivalences: for quasiorders and tolerance relations. The counterpart of partition for the quasiorders is based on a generalization of the notion
Nowak, Marek
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Some fixed point theorems for (CAB)-contractive mappings and related results [PDF]
Mathematica Moravica, 2015 In this paper, we introduced the concept of (CAB)-contractive mappings and provide sufficient conditions for the existence and uniqueness of a fixed point for such class of generalized nonlinear contractive mappings in metric spaces and several ...
Ansari Hojat Arslan +2 more
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Fixed Point Theorems for Nonexpansive Mappings under Binary Relations
Mathematics, 2021 In the present article, we establish relation-theoretic fixed point theorems in a Banach space, satisfying the Opial condition, using the R-Krasnoselskii sequence. We observe that graphical versions (Fixed Point Theory Appl.
Aftab Alam +3 more
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On binary relations without non-identical endomorphisms
, 2000 On every set A there is a rigid binary relation, i.e. such a relation R that there is no homomorphism (A,R)->(A,R) except the identity (Vopenka et al. [1965]). We state two conjectures which strengthen this theorem.
Tyszka, Apoloniusz
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