Results 71 to 80 of about 6,477 (139)

Which singular tangent bundles are isomorphic?

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract Logarithmic and b$ b$‐tangent bundles provide a versatile framework for addressing singularities in geometry. Introduced by Deligne and Melrose, these modified bundles resolve singularities by reframing singular vector fields as well‐behaved sections of these singular bundles.
Eva Miranda, Pablo Nicolás
wiley   +1 more source

On cohomology of locally profinite sets

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 5, May 2026.
Abstract We construct a locally profinite set of cardinality ℵω$\aleph _{\omega }$ with infinitely many first cohomology classes of which any distinct finite product does not vanish. Building on this, we construct the first example of a nondescendable faithfully flat map between commutative rings of cardinality ℵω$\aleph _{\omega }$ within Zermelo ...
Ko Aoki
wiley   +1 more source

Derivations and commutativity of rings [PDF]

open access: yesPacific Journal of Mathematics, 1979
Chung, Lung O.   +2 more
openaire   +3 more sources

Centralizing and Commuting Left Generalized Derivations on Prime Rings

open access: yesBulletin of Mathematical Sciences and Applications, 2015
Let R be a prime ring and d a derivation on R. If is a left generalized derivation on R such that ƒ is centralizing on a left ideal U of R, then R is commutative.
C. Jaya Subba Reddy   +2 more
openaire   +1 more source

Derivations and commutativity of rings. II [PDF]

open access: yesPacific Journal of Mathematics, 1979
Chung, Lung O.   +2 more
openaire   +3 more sources

On generalized derivations and commutativity of prime gamma-rings

open access: yesGulf Journal of Mathematics, 2016
Let M be a prime Γ-ring with center Z(M), I a nonzero ideal of M and F be a generalized derivation with associated nonzero derivation d. In the present paper, our purpose is to produce commutativity results for prime Γ-rings M admitting a generalized derivation F satisfying any one of the properties: (i) F(xαy)∓xαy ∈ Z(M), (ii) F(xαy)∓yαx ∈ Z(M), (iii)
Shuliang Huang, M. Nagy Daif
openaire   +1 more source

Logarithmically regular morphisms. [PDF]

open access: yesMath Ann, 2021
Molcho S, Temkin M.
europepmc   +1 more source

On a Ring of Formal Pseudo-differential Operators

open access: yes, 1999
We study the notion of non-commumative higher dimensional local fields. A simplest example is the ring P of formal pseudo- differential operators.
Parshin, A. N.
core   +1 more source

Mutations and derived equivalences for commutative Noetherian rings

open access: yes
Submitted to the proceedings of the International Conference on Representations of Algebras (ICRA) 2022; Comments are welcome!
openaire   +3 more sources

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