Results 81 to 90 of about 1,060 (227)

Homotopy ends and Thomason model categories [PDF]

open access: yesSelecta Mathematica, 2001
39 pages, AMS-TeX file using ...
openaire   +3 more sources

Dirac geometry II: coherent cohomology

open access: yesForum of Mathematics, Sigma
Dirac rings are commutative algebras in the symmetric monoidal category of $\mathbb {Z}$ -graded abelian groups with the Koszul sign in the symmetry isomorphism.
Lars Hesselholt, Piotr Pstrągowski
doaj   +1 more source

A Survey of Sparse Representation: Algorithms and Applications

open access: yesIEEE Access, 2015
Sparse representation has attracted much attention from researchers in fields of signal processing, image processing, computer vision, and pattern recognition.
Zheng Zhang   +4 more
doaj   +1 more source

Homotopy epimorphisms and Lusternik-Schnirelmann category [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
This paper examines the relationship of the LusternikSchnirelmann category and related numerical homotopy invariants to the epimorphisms in the homotopy category. The results are of the form: if N is a numerical homotopy invariant and f: X -f Y is an epimorphism, then under certain hypotheses N(X) > N(Y).
openaire   +2 more sources

On Fuzzy ideal Homotopy Lifting Property

open access: yesWasit Journal for Pure Sciences
In algebraic topology, F.I.H.L.P., or fuzzy ideal Homotopy Lifting Property is   a key principle that offers a foundation for comprehending continuous mappings between topological spaces.
Shahad Hillal Tuaimah   +1 more
doaj   +1 more source

A convenient category for directed homotopy [PDF]

open access: bronze, 2008
Lisbeth Fajstrup, Jir̆ı́ Rosický
openalex   +1 more source

The homotopy category and derived category of N-complexes

open access: yesJournal of Algebra, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang, Xiaoyan, Ding, Nanqing
openaire   +1 more source

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