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We introduce a new definition of a generalized logarithmic module of multiarrangements by uniting those of the logarithmic derivation and the differential modules. This module is realized as a logarithmic derivation module of an arrangement…

Commutative Algebra · Mathematics 2008-07-17 Takuro Abe

We introduce a generalization of the notion of local homology module, which we call a local homology module with respect to a pair of ideals $\left(I,J\right)$, and study its various properties such as vanishing, co-support and…

Commutative Algebra · Mathematics 2015-04-29 V. H. Jorge Perez , C. H. Tognon

Let $A$ be a coherent algebra and $B$ be a finite-dimensional Gorenstein algebra over a field $k$. We describe finitely presented Gorenstein projective $A\otimes_k B$-modules in terms of their underlying onesided modules. Moreover, if the…

Representation Theory · Mathematics 2016-02-02 Dawei Shen

For any ring R we construct two triangulated categories, each admitting a functor from R-modules that sends projective and injective modules to 0. When R is a quasi-Frobenius or Gorenstein ring, these triangulated categories agree with each…

Rings and Algebras · Mathematics 2014-05-23 Daniel Bravo , James Gillespie , Mark Hovey

We describe the generic modules in each component of the spaces of representations of certain string algebras. In so doing, we calculate the dimensions of higher self-extension groups for generic modules. This algorithm lends itself for use…

Representation Theory · Mathematics 2011-11-23 Andrew Thomas Carroll

In this paper we classify extensions between irreducible finite conformal modules over the Virasoro algebra, over the current algebras and over their semidirect sums.

q-alg · Mathematics 2008-02-03 Shun-Jen Cheng , Victor Kac , Minoru Wakimoto

The purpose of this survey is to present analytic versions of the injectivity theorem and their applications. The proof of our injectivity theorems is based on a combination of the L^2-method for the dbar-equation and the theory of harmonic…

Complex Variables · Mathematics 2015-11-16 Shin-ichi Matsumura

Given a ring R, we investigate tilting modules of the form S \oplus S/R for some injective ring epimorphism R \to S. In particular, we are interested in tilting modules arising from Schofield's universal localization. For some rings, in…

Representation Theory · Mathematics 2008-04-09 Lidia Angeleri Hügel , Javier Sánchez

The first-order model theory of modules has been studied for decades. More recently, the model theoretic study of nonelementary classes of modules--especially Abstract Elementary Classes of modules--has produced interesting results. This…

Logic · Mathematics 2025-07-21 Will Boney

The connection between multiple modular L-functions, as defined by Manin in [5], and modular iterated integrals was made explicit by Choie and Ihara [3] under the restrictive assumption that all modular forms involved have vanishing…

Number Theory · Mathematics 2026-05-08 Mahiro Yokomizo

In the paper "Deformation theory of abelian categories", the last two authors proved that an abelian category with enough injectives can be reconstructed as the category of finitely presented modules over the category of its injective…

Category Theory · Mathematics 2022-01-20 Francesco Genovese , Wendy Lowen , Michel Van den Bergh

In 2008, M. Kaneko made several interesting observations about the values of the modular j invariant at real quadratic irrationalities. The values of modular functions at real quadratics are defined in terms of their cycle integrals along…

Number Theory · Mathematics 2020-03-24 Paloma Bengoechea , Ozlem Imamoglu

Whittaker modules have been well studied in the setting of complex semisimple Lie algebras. Their definition can easily be generalized to certain other Lie algebras with triangular decomposition, including the Virasoro algebra. We define…

Representation Theory · Mathematics 2008-05-26 Matthew Ondrus , Emilie Wiesner

This paper is the first of three in which I study the moduli space of isometry classes of (compact) globally hyperbolic spacetimes (with boundary). I introduce a notion of Gromov-Hausdorff distance which makes this moduli space into a…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Johan Noldus

We classify indecomposable pure injective modules over domestic string algebras, verifying Ringel's conjecture on the structure of such modules.

Representation Theory · Mathematics 2015-09-15 Gena Puninski , Mike Prest

For a given class of R-modules Q, a module M is called Q-copure Baer injective if any map from a Q-copure left ideal of R into M can be extended to a map from R into M. Depending on the class Q, this concept is both a dualization and a…

Rings and Algebras · Mathematics 2018-08-03 Mohanad Farhan Hamid

We characterize the generalized Auslander--Reiten duality on the category of finitely presented modules over some certain Hom-finite category. Examples include the category FI of finite sets with injections, and the one VI of finite…

Representation Theory · Mathematics 2022-03-30 Pengjie Jiao

In this paper, we introduce and study e-injective semimodules, in particular over additively idempotent semirings. We completely characterize semirings all of whose semimodules are e-injective, describe semirings all of whose projective…

Rings and Algebras · Mathematics 2016-08-10 J. Y. Abuhlail , S. N. Il'in , Y. Katsov , T. G. Nam

Let $R$ be a regular local ring containing a field $k$ of characteristic $p$ and $M$ be an $\mathscr{F}$-finite module. In this paper, we study the injective dimension of $M$. We prove that $\operatorname{dim}_R(M) -1…

Commutative Algebra · Mathematics 2017-11-09 Mehdi Dorreh

In this talk I shall try to give an elementary introduction to certain areas of mathematical physics where the idea of moduli space is used to help solve problems or to further our understanding. In the wide area of gauge theory, I shall…

High Energy Physics - Theory · Physics 2007-05-23 ST Tsou