Results 51 to 60 of about 830,992 (228)
On the metrizability of suprametric space
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria MatematicaThe question of metrizability of suprametric space is answered positively. The observed metric coincides with a suprametric in a way that convergence and continuity are preserved between suprametric space and associated metric space along with the ...
Karapınar Erdal, Cvetković Marija
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Some related fixed point theorems for multivalued mappings on two metric spaces
Karpatsʹkì Matematičnì Publìkacìï, 2020 The definition of related mappings was introduced by Fisher in 1981. He proved some theorems about the existence of fixed points of single valued mappings defined on two complete metric spaces and relations between these mappings.
Ö. Biçer +3 more
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A Fixed Point Theorem for Multivalued Mappings with δ-Distance
Abstract and Applied Analysis, 2014 We mainly study fixed point theorem for multivalued mappings with δ-distance using Wardowski’s technique on complete metric space. Let (X,d) be a metric space and let B(X) be a family of all nonempty bounded subsets of X.
Özlem Acar, Ishak Altun
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Completing graphs to metric spaces [PDF]
Contributions to Discrete Mathematics, 2017 We prove that certain classes of metrically homogeneous graphs omitting triangles of odd short perimeter as well as triangles of long perimeter have the extension property for partial automorphisms and we describe their Ramsey expansions.
Aranda, Andrés +7 more
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Kerr-Schild metrics revisited II. The complete vacuum solution
, 2002 The complete solution of Einstein's gravitational equations with a vacuum-vacuum Kerr-Schild pencil of metrics $g_{ab}+V l_al_b$ is obtained. Our result generalizes the solution of the Kerr-Schild problem with a flat metric $g_{ab}$ (represented by the ...
László Á. Gergely +2 more
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A Characterization of Complete Metric Spaces [PDF]
Proceedings of the American Mathematical Society, 1981 A general formulation of the completeness argument used in the Bishop-Phelps Theorem and many other places has been given by Ekeland. It is shown that Ekeland's formulation characterizes complete metric spaces. A central idea in the proof of the Bishop-Phelps Theorem is the use of norm completeness and a partial ordering to produce a point where a ...
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Mathematics, 2019 In the present article, the notion of αH-ψH-multivalued contractive type mappings is introduced and some fixed point results in complete metric spaces are studied. These theorems generalize Nadler’s (Multivalued contraction mappings, Pac. J.
Pooja Dhawan +2 more
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Dynamical Systems on Spectral Metric Spaces [PDF]
, 2010 Let (A,H,D) be a spectral triple, namely: A is a C*-algebra, H is a Hilbert space on which A acts and D is a selfadjoint operator with compact resolvent such that the set of elements of A having a bounded commutator with D is dense.
Bellissard, Jean V. +2 more
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Metrizability of Topology, Precompactness and Semi-Compatibal Mappings in Neutrosophic Metric Spaces [PDF]
Neutrosophic Sets and SystemsIn this manuscript, we discuss the metrizability of the topology produced by arbitrary neutrosophic metric space. Further, we demonstrate that the resulting topology is completely metrizable if the neutrosophic metric space is complete and a neutrosophic
Khaleel Ahmad, Umar Ishtiaq
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An Operator-Valued Kantorovich Metric on Complete Metric Spaces [PDF]
Acta Applicandae Mathematicae, 2018 The current version has been updated with small changes to match the final publication, Acta Applicandae Mathematicae (2018)
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