Results 91 to 100 of about 255 (119)

A characterization of bicompletable fuzzy quasi-metric spaces

Fuzzy Sets and Systems, 2005
An internal characterization of fuzzy quasi-metric spaces which admit a fuzzy quasi-metric bicompletion is given, and the uniqueness of such a bicompletion is also proved.
Valentín Gregori, Salvador Romaguera, Almanzor Sapena   +2 more
openaire   +1 more source

Quasi-uniformities on topological semigroups and bicompletion

Semigroup Forum, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Künzi, H.-P. A., Marín, J., Romaguera, S.   +2 more
openaire   +2 more sources

The bicompletion of an asymmetric normed linear space

Acta Mathematica Hungarica, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
García-Raffi, L. M., Romaguera, S., Sánchez-Pérez, E. A.   +2 more
openaire   +2 more sources

Constructing the sobrification of an approach space via bicompletion

Acta Mathematica Hungarica, 2007
Approach spaces form the missing link in the topology-uniformity-metric triad (R. Lowen). \textit{B. Banaschewski, R. Lowen} and \textit{C. Van Olmen} [Topology Appl., 153, No.~16, 3059--3070 (2006; Zbl 1114.54007)] have introduced a notion of sobriety for such approach spaces, modelled after the corresponding concept in the category of topological ...
Gerlo, An, Vandersmissen, Eva
openaire   +2 more sources

On the bicompletion of a partial quasi-metric space and $$T_{0}$$-quasi-metric spaces

Afrika Matematika, 2020
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Seithuti Moshokoa, Fanyana Ncongwane
openaire   +2 more sources

Problems with fixpoints of polynomials of polynomials

arXiv.org
Motivated by applications in computable analysis, we study fixpoints of certain endofunctors over categories of containers. More specifically, we focus on fibred endofunctors over the fibrewise opposite of the codomain fibration that can be themselves be
Cécilia Pradic, Ian Price
semanticscholar   +1 more source

Galois connections and preradicals in abelian categories

Boletín de la Sociedad Matematica Mexicana
In this paper, we define operations on preradicals in arbitrary abelian categories. We define idempotent preradicals and radicals. We prove that every adjoint pair between abelian categories induces a Galois connection between the corresponding ordered
Rogelio Fernández-Alonso, Janeth Magaña, Martha Lizbeth Shaid Sandoval-Miranda, Valente Santiago-Vargas   +3 more
semanticscholar   +1 more source

Tube Category, Tensor Renormalization and Topological Holography

Communications in Mathematical Physics
Ocneanu’s tube algebra provides a finite algorithm to compute the Drinfeld center of a fusion category. In this work we reveal the universal property underlying the tube algebra.
Tian Lan
semanticscholar   +1 more source

Bicompleting the left quasi-uniformity of a paratopological group

Archiv der Mathematik, 1998
Extending results from the theory of topological groups to paratopological groups, the authors show that the bicompletion of the left quasi-uniformity of a paratopological \((T_0)\)-group \(G\) can be considered a topological semigroup which contains \(G\) as a sup-dense subsemigroup. Furthermore they characterize those paratopological \((T_0)\)-groups
Marín, Josefa, Romaguera, Salvador
openaire   +1 more source

Triangulated equivalence between a homotopy category and a triangulated quotient category

Journal of Algebra, 2018
Given two complete hereditary cotorsion pairs ( Q , R ) and ( Q ′ , R ′ ) in a bicomplete abelian category G such that Q ′ ⊆ Q and Q ∩ R = Q ′ ∩ R ′ , Becker showed that there exists a hereditary abelian model structure M = ( Q , W , R ′ ) on G , where W
Zhenxing Di, Zhong-kui Liu, Xiaoyan Yang, Xiaoxiang Zhang   +3 more
semanticscholar   +1 more source