English
Related papers

Related papers: On Constructions Related to the Generalized Taylor…

200 papers

We introduce a family of commuting generalised symmetries of the Dunkl--Dirac operator inspired by the Maxwell construction in harmonic analysis. We use these generalised symmetries to construct bases of the polynomial null-solutions of the…

Representation Theory · Mathematics 2023-09-06 Hendrik De Bie , Alexis Langlois-Rémillard , Roy Oste , Joris Van der Jeugt

Let g be a complex, semisimple Lie algebra, G the corresponding simply-connected Lie group and H a maximal torus in G. We construct a flat connection on H with logarithmic singularities on the root hypertori and values in the Yangian Y(g)…

Quantum Algebra · Mathematics 2011-02-07 Valerio Toledano-Laredo

Let F denote the homotopy fiber of a map f:K-->L of 2-reduced simplicial sets. Using as input data the strongly homotopy coalgebra structure of the chain complexes of K and L, we construct a small, explicit chain algebra, the homology of…

Algebraic Topology · Mathematics 2014-10-01 Kathryn Hess , Ran Levi

For any dg algebra $A$ we construct a closed model category structure on dg $A$-modules such that the corresponding homotopy category is compactly generated by dg $A$-modules that are finitely generated and free over $A$ (disregarding the…

Category Theory · Mathematics 2022-05-12 Ai Guan , Andrey Lazarev

We present generalized algebraic theories corresponding to slightly modified versions of two of the type theories in our paper Type Theory with Explicit Universe Polymorphism. We first present a generalized algebraic theory for categories…

Logic in Computer Science · Computer Science 2026-03-05 Marc Bezem , Thierry Coquand , Peter Dybjer , Martín Escardó

The Riemann-Roch theorem on a graph G is related to Alexander duality in combinatorial commutive algebra. We study the lattice ideal given by chip firing on G and the initial ideal whose standard monomials are the G-parking functions. When…

Commutative Algebra · Mathematics 2012-07-11 Madhusudan Manjunath , Bernd Sturmfels

D.Sullivan (1977) (see also the book by H.Whitney "Geometric Integration Theory",1957) considered a new model for underlying cochain complex for classical cohomologies with rational coefficients for arbitrary simplicial spaces that gives…

Algebraic Topology · Mathematics 2011-11-30 Alexander S. Mishchenko , Jose Ribeiro

Conditions on the Koszul complex of a noetherian local ring $R$ guarantee that $\mathrm{Tor}^{R}_{i}(M,N)$ is non-zero for infinitely many $i$, when $M$ and $N$ are finitely generated $R$-modules of infinite projective dimension. These…

Commutative Algebra · Mathematics 2015-08-05 Luchezar L. Avramov , Srikanth B. Iyengar , Saeed Nasseh , Sean Sather-Wagstaff

Let E be a transitive Courant algebroid with scalar product of neutral signature. A generalized almost complex structure \mathcal J on E is a skew-symmetric smooth field of endomorphisms of E which squares to minus the identity. We say that…

Differential Geometry · Mathematics 2025-01-08 Vicente Cortés , Liana David

We use weighted polynomial approximation to prove the existence of a compact set K with non-empty interior and a function f is dense in the space A(K) of all continuous functions on K that are holomorphic in the interior of K, endowed with…

Complex Variables · Mathematics 2025-06-26 Stéphane Charpentier , Konstantinos Maronikolakis

In this paper we study dually flat spaces arising from Delzant polytopes equipped with a symplectic potential together with their corresponding toric K\"ahler manifolds as their torifications.We introduce a dually flat structure and the…

Symplectic Geometry · Mathematics 2023-12-27 Hajime Fujita

Every multigraded free resolution of a monomial ideal I contains the Scarf multidegrees of I. We say I has a Scarf resolution if the Scarf multidegrees are sufficient to describe a minimal free resolution of I. The main question of this…

Commutative Algebra · Mathematics 2026-03-10 Sara Faridi , Tài Huy Hà , Takayuki Hibi , Susan Morey

A graph-theoretic method, simpler than existing ones, is used to characterize the minimal set of monomial generators for the integral closure of any algebra of polynomials generated by quadratic monomials. The toric ideal of relations…

Commutative Algebra · Mathematics 2010-01-31 Peter M. Johnson

In this paper, we give some basic properties of the generalized derivation algebra ${\rm GDer}(L)$ of a Hom-Lie superalgebra $L$. In particular, we prove that ${\rm GDer}(L) = {\rm QDer}(L) + {\rm QC}(L)$, the sum of the quasiderivation…

Rings and Algebras · Mathematics 2014-06-09 Jia Zhou , Liangyun Chen , Yao Ma

The classical Ham Sandwich theorem states that any $d$ point sets in $\mathbb{R}^d$ can be simultaneously bisected by a single affine hyperplane. A generalization of Dolnikov asserts that any $d$ families of pairwise intersecting compact,…

Combinatorics · Mathematics 2023-11-10 Florian Frick , Samuel Murray , Steven Simon , Laura Stemmler

In this paper we introduce techniques from complex harmonic analysis to prove a weaker version of the Geometric Arveson-Douglas Conjecture for complex analytic subsets that is smooth on the boundary of the unit ball and intersects…

Functional Analysis · Mathematics 2016-01-29 Ronald G. Douglas , Yi Wang

We show that there exists a Galois correspondence between subalgebras of an H-comodule algebra A over a base ring R and generalised quotients of a Hopf algebra H if both A and H are flat Mittag--Leffler modules. We also provide new criteria…

Quantum Algebra · Mathematics 2013-04-30 Marcin Szamotulski

We extend the classical notion of standardly stratified $k$-algebra (stated for finite dimensional $k$-algebras) to the more general class of rings, possibly without $1,$ with enough idempotents. We show that many of the fundamental…

Rings and Algebras · Mathematics 2020-09-03 O. Mendoza , M. Ortíz , C. Sáenz , V. Santiago

We give a new syntax independent definition of the notion of a generalized algebraic theory as an initial object in a category of categories with families (cwfs) with extra structure. To this end we define inductively how to build a valid…

Category Theory · Mathematics 2021-03-17 Marc Bezem , Thierry Coquand , Peter Dybjer , Martín Escardó

This article is the continuation of the first named author work "On maximal totally real embeddings". For real analytic compact manifolds equipped with a covariant derivative operator acting on the real analytic sections of its tangent…

Complex Variables · Mathematics 2023-10-11 Nefton Pali , Bruno Salvy