Results 31 to 40 of about 1,060 (227)

Solving Newell-Whitehead-Segel Equation By using Elzaki Transform and its inverse with The Homotopy Perturbation Method [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
This research is a ‌combination of the homotopy ‌perturbation method with ‌Elzaki transform method ‌and Elzaki inverse to ‌solve some nonlinear ‌partial differential ‌equations.
Mohammed Alsofey   +1 more
doaj   +1 more source

Directed Homotopy in Non-Positively Curved Spaces [PDF]

open access: yesLogical Methods in Computer Science, 2020
A semantics of concurrent programs can be given using precubical sets, in order to study (higher) commutations between the actions, thus encoding the "geometry" of the space of possible executions of the program.
Eric Goubault, Samuel Mimram
doaj   +1 more source

Many homotopy categories are homotopy categories

open access: yesTopology and its Applications, 2006
A well known theorem of \textit{A. Strøm} [Arch. Math. 23, 435--441 (1972; Zbl 0261.18015)] states that the category of topological spaces admits a model category structure where weak equivalences are homotopy equivalences and fibrations are Hurewicz fibrations. The paper generalizes this result as follows.
openaire   +2 more sources

Fusion categories and homotopy theory

open access: yesQuantum Topology, 2010
We apply the yoga of classical homotopy theory to classification problems of G -extensions of fusion and braided fusion categories, where G is a finite group. Namely, we reduce such problems to classification (up to homotopy) of maps from BG
Etingof, Pavel I.   +2 more
openaire   +4 more sources

Idempotents in intensional type theory [PDF]

open access: yesLogical Methods in Computer Science, 2017
We study idempotents in intensional Martin-L\"of type theory, and in particular the question of when and whether they split. We show that in the presence of propositional truncation and Voevodsky's univalence axiom, there exist idempotents that do not ...
Michael Shulman
doaj   +1 more source

Recursion Operators and Frobenius Manifolds

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
In this note I exhibit a ''discrete homotopy'' which joins the category of F-manifolds to the category of Poisson-Nijenhuis manifolds, passing through the category of Frobenius manifolds.
Franco Magri
doaj   +1 more source

Bioconvective Chemically Reactive Radiative Squeezing Flow of a Casson Hybrid Nanofluid Between Two Parallel Plates Under Variable Viscosity

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Hybrid nanofluids, known for their superior thermal and electrical conductivity, have demonstrated remarkable potential in enhancing the heat transfer capability of conventional base fluids. This study analyzes the effects of viscous dissipation and heat radiation on two‐dimensional unsteady incompressible squeezing flow transporting hybrid ...
Hajra Batool   +3 more
wiley   +1 more source

A higher-dimensional categorical perspective on 2-crossed modules

open access: yesDemonstratio Mathematica
In this study, we will express the 2-crossed module of groups from a higher-dimensional categorical perspective. According to simplicial homotopy theory, a 2-crossed module is the Moore complex of a 2-truncated simplicial group.
Özel Emre   +2 more
doaj   +1 more source

On Something Like an Operational Virtuality

open access: yesHumanities, 2021
We outline here a certain history of ideas concerning the relation between intuitions and their external verification and consider its potential for detrivializing the concept of virtuality.
Alexander Wilson
doaj   +1 more source

Homotopy Theory in Abelian Categories [PDF]

open access: yesCanadian Journal of Mathematics, 1962
The concept of homotopy for homomorphisms of modules, suggested by analogy with fundamental properties of the topological homotopy, was developed by Eckmann and Hilton (3; 9; 10). In the present paper, this concept of homotopy is generalized to additive categories with an additional structure, and the theory of homotopy, including in particular various
openaire   +1 more source

Home - About - Disclaimer - Privacy