Results 1 to 10 of about 12,345 (145)

Frobenius splitting of Schubert varieties of semi-infinite flag manifolds [PDF]

open access: yesForum of Mathematics, Pi, 2021
We exhibit basic algebro-geometric results on the formal model of semi-infinite flag varieties and its Schubert varieties over an algebraically closed field ${\mathbb K}$ of characteristic $\neq 2$ from scratch.
Syu Kato
doaj   +4 more sources

On Gray Images of Cyclic and Self-Orthogonal Codes over Fq+uFq+vFq [PDF]

open access: yesEntropy
Let p be a prime with p∉{2,5} and let q=pm. This paper studies cyclic and self-orthogonal linear codes of length n over the finite local non-Frobenius ring Rp,u,v=Fq+uFq+vFq, u2=v2=uv=vu=0.
Sami H. Saif, Alhanouf Ali Alhomaidhi
doaj   +2 more sources

On Almost Quasi-Frobenius Fuzzy Rings

open access: yesمجلة بغداد للعلوم, 2004
In this paper, we introduce the concept of almost Quasi-Frobcnius fuzzy ring as a " " of Quasi-Frobenius ring. We give some properties about this concept with qoutient fuzzy ring. Also, we study the fuzzy external direct sum of fuzzy rings.
Baghdad Science Journal
doaj   +4 more sources

Integral p-adic Hodge theory [PDF]

open access: yes, 2018
We construct a new cohomology theory for proper smooth (formal) schemes over the ring of integers of C_p. It takes values in a mixed-characteristic analogue of Dieudonne modules, which was previously defined by Fargues as a version of Breuil-Kisin ...
Bhatt, Bhargav   +2 more
core   +3 more sources

A Generalization of Quasi-Frobenius Rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
Let \(R\) be a ring and \(_R\mathcal M\) the category of all left \(R\)-modules. \textit{G. Azumaya} [Nagoya Math. J. 27, 697--708 (1966; Zbl 0144.02303)] proved that if all faithful left \(R\)-modules are generators in \(_R\mathcal M\), \(R\) is left self-injective and a direct sum of indecomposable left ideals having minimal left ideals (cf.
openaire   +2 more sources

Some results on quasi-Frobenius rings [PDF]

open access: yesCommentationes Mathematicae Universitatis Carolinae, 2017
Summary: We give some new characterizations of quasi-Frobenius rings by the generalized injectivity of rings. Some characterizations give affirmative answers to some open questions about quasi-Frobenius rings, and some characterizations improve some results on quasi-Frobenius rings.
openaire   +2 more sources

A note on quasi-Frobenius rings [PDF]

open access: yesPacific Journal of Mathematics, 1968
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

The Witten equation, mirror symmetry and quantum singularity theory

open access: yes, 2012
For any non-degenerate, quasi-homogeneous hypersurface singularity, we describe a family of moduli spaces, a virtual cycle, and a corresponding cohomological field theory associated to the singularity. This theory is analogous to Gromov-Witten theory and
Fan, Huijun   +2 more
core   +1 more source

Algebraic and Nori fundamental gerbes

open access: yes, 2017
In this paper we extend the generalized algebraic fundamental group constructed by Esnault and Hogadi to general fibered categories using the language of gerbes.
Tonini, Fabio, Zhang, Lei
core   +1 more source

Projectivity and freeness over comodule algebras [PDF]

open access: yes, 2006
Let H be a Hopf algebra and A an H-simple right H-comodule algebra. It is shown that under certain hypotheses every (H,A)-Hopf module is either projective or free as an A-module and A is either a quasi-Frobenius or a semisimple ring. As an application it
Skryabin, S.
core   +1 more source

Home - About - Disclaimer - Privacy