Results 11 to 20 of about 380,214 (319)

Reversing orientation homeomorphisms of surfaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
Let $M$ be a connected compact orientable surface, $f:M\to \mathbb{R}$ be a Morse function, and $h:M\to M$ be a diffeomorphism which preserves $f$ in the sense that $f\circ h = f$. We will show that if $h$ leaves invariant each regular component of each
Iryna Kuznietsova, Sergiy Maksymenko
doaj   +1 more source

Topologically Semiperfect Topological Rings

open access: yesAlgebras and Representation Theory, 2023
AbstractWe define topologically semiperfect (complete, separated, right linear) topological rings and characterize them by equivalent conditions. We show that the endomorphism ring of a module, endowed with the finite topology, is topologically semiperfect if and only if the module is decomposable as an (infinite) direct sum of modules with local ...
Leonid Positselski, Jan Šťovíček
openaire   +3 more sources

Topological—anti-topological fusion [PDF]

open access: yesNuclear Physics B, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Cecotti, Sergio, VAFA C.
openaire   +4 more sources

Using the Evolution Operator to Classify Evolution Algebras

open access: yesMathematical and Computational Applications, 2021
Evolution algebras are currently widely studied due to their importance not only “per se” but also for their many applications to different scientific disciplines, such as Physics or Engineering, for instance.
Desamparados Fernández-Ternero   +2 more
doaj   +1 more source

Topological relations

open access: yesRevista Integración, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Angulo-Perkins, Emilio   +1 more
openaire   +4 more sources

Minimum topological group topologies [PDF]

open access: yesJournal of Pure and Applied Algebra, 2017
A Hausdorff topological group topology on a group $G$ is the minimum (Hausdorff) group topology if it is contained in every Hausdorff group topology on $G$. For every compact metrizable space $X$ containing an open $n$-cell, $n\ge2$, the homeomorphism group $H(X)$ has no minimum Hausdorff group topology.
Chang, Xiao, Gartside, Paul
openaire   +2 more sources

Kibble–Zurek scaling due to environment temperature quench in the transverse field Ising model

open access: yesScientific Reports, 2023
The Kibble–Zurek mechanism describes defect production due to non-adiabatic passage through a critical point. Here we study its variant from ramping the environment temperature to a critical point. We find that the defect density scales as $$\tau ^{-d\nu
Ádám Bácsi, Balázs Dóra
doaj   +1 more source

Smooth approximations and their applications to homotopy types

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2020
Let $M, N$ the be smooth manifolds, $\mathcal{C}^{r}(M,N)$ the space of ${C}^{r}$ maps endowed with the corresponding weak Whitney topology, and $\mathcal{B} \subset \mathcal{C}^{r}(M,N)$ an open subset.
Олександра Олександрівна Хохлюк   +1 more
doaj   +1 more source

Topological exploration of artificial neuronal network dynamics [PDF]

open access: yesNetwork Neuroscience, 2019
One of the paramount challenges in neuroscience is to understand the dynamics of individual neurons and how they give rise to network dynamics when interconnected.
Jean-Baptiste Bardin   +2 more
doaj   +1 more source

Supervised topological data analysis for MALDI mass spectrometry imaging applications

open access: yesBMC Bioinformatics, 2023
Background Matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI) displays significant potential for applications in cancer research, especially in tumor typing and subtyping.
Gideon Klaila   +2 more
doaj   +1 more source

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