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We prove that the differential graded Lie algebra of functionals associated to the Chern-Simons theory of a semisimple Lie algebra is homotopy abelian. For a general field theory, we show that the variational complex in the…

Mathematical Physics · Physics 2022-01-05 Ezra Getzler

In this article, we give an explicit construction of the simple modules for both non-degenerate and degenerate cyclotomic Hecke-Clifford superalgebras over an algebraically closed field of characteristic not equal to $2$ under certain…

Representation Theory · Mathematics 2025-03-27 Lei Shi , Jinkui Wan

We give a non-negative combinatorial formula, in terms of Littlewood-Richardson numbers, for the homology of the unitary representations of the cyclotomic rational Cherednik algebra, and as a consequence, for the graded Betti numbers for…

Representation Theory · Mathematics 2020-08-12 Susanna Fishel , Stephen Griffeth , Elizabeth Manosalva

v2: An additional assumption was added in Theorem 4.8. In order to show that a connected abelian group is admissible on the site of locally compact spaces we must in addition assume that it is locally topologically divisible. This condition…

Algebraic Topology · Mathematics 2018-11-28 Ulrich Bunke , Thomas Schick , Markus Spitzweck , Andreas Thom

We classify blocks of category $\mathcal{O}$ for rational Cherednik algebras and of cyclotomic Hecke algebras of type G(r,p,n) by using the "residue equivalence" for multi-partitions.

Representation Theory · Mathematics 2010-02-09 Kentaro Wada

We prove embedding theorems for fully anisotropic Besov spaces. More concrete, inequalities between modulus of continuity in different metrics and of Sobolev type are obtained. Our goal is to get sharp estimates for some anisotropic cases…

Functional Analysis · Mathematics 2007-05-23 F. J. Perez Lazaro

We investigate the notions of \emph{localization} and \emph{filtration} in the context of extended affine Lie algebras. Our primary objective is to develop a localization theory that facilitates the construction of meaningful local…

Quantum Algebra · Mathematics 2025-10-10 Saeid Azam

We prove finiteness results for sets of varieties over number fields with good reduction outside a given finite set of places using cyclic covers. We obtain a version of the Shafarevich conjecture for weighted projective surfaces, double…

Algebraic Geometry · Mathematics 2022-07-26 Ariyan Javanpeykar , Daniel Loughran , Siddharth Mathur

We show that there is a logarithmic algebraic space parameterizing logarithmic morphisms between fixed logarithmic schemes when those logarithmic schemes satisfy natural hypotheses. As a corollary, we obtain the algebraicity of the stack of…

Algebraic Geometry · Mathematics 2016-07-13 Jonathan Wise

We present some fundamental results on (possibly nonlinear) algebraic semigroups and monoids. These include a version of Chevalley's structure theorem for irreducible algebraic monoids, and the description of all algebraic semigroup…

Algebraic Geometry · Mathematics 2013-12-23 Michel Brion

Using a combinatorial description due to Jacon and Lecouvey of the wall crossing bijections for cyclotomic rational Cherednik algebras, we show that the irreducible representations $L_c(\lambda^\pm)$ of the rational Cherednik algebra…

Representation Theory · Mathematics 2022-01-13 Seth Shelley-Abrahamson , Alec Sun

We prove the Ax-Lindemann theorem for the coarse moduli space $\mathcal{A}_{g}$ of principally polarized abelian varieties of dimension $g\ge 1$, and affirm the Andr\'e-Oort conjecture unconditionally for $\mathcal{A}_{g}$ for $g\le 6$.

Number Theory · Mathematics 2013-11-19 Jonathan Pila , Jacob Tsimerman

In this paper we give a lower bound for the codimension of the Andreotti-Mayer loci in the moduli space of principally polarized complex abelian varieties. We also present a conjecture on this codimension.

Algebraic Geometry · Mathematics 2007-05-23 Ciro Ciliberto , Gerard van der Geer

Symplectic reflection algebras arise in many different mathematical disciplines: integrable systems, Lie theory, representation theory, differential operators, symplectic geometry. In this paper, we introduce baby Verma modules for…

Representation Theory · Mathematics 2007-05-23 Iain Gordon

The article focuses on three different notions of polynomiality for maps of modules. In addition to the polynomial maps studied by Eilenberg and Mac Lane and the strict polynomial maps ("lois polynomes") considered by Roby, we introduce…

Rings and Algebras · Mathematics 2015-05-05 Qimh Richey Xantcha

We show the existence of Hall polynomials for representation-finite cluster-tilted algebras.

Rings and Algebras · Mathematics 2018-09-11 Changjian Fu

We reconsider Chern-Simons gauge theory on a Seifert manifold M, which is the total space of a nontrivial circle bundle over a Riemann surface, possibly with orbifold points. As shown in previous work with Witten, the path integral…

High Energy Physics - Theory · Physics 2014-07-28 Chris Beasley

Using the classical universal coefficient theorem of Rosenberg-Schochet, we prove a simple classification of all localizing subcategories of the Bootstrap category of separable complex C*-algebras. Namely, they are in bijective…

K-Theory and Homology · Mathematics 2012-02-21 Ivo Dell'Ambrogio

We introduce a path-theoretic framework for understanding the representation theory of (quantum) symmetric and general linear groups and their higher level generalisations over fields of arbitrary characteristic. Our first main result is a…

Representation Theory · Mathematics 2018-05-04 C. Bowman , A. G. Cox

Under some assumptions, we compute the Picard group of moduli of stable sheaves on Abelian surfaces. Considering relative moduli spaces, it is sufficient to consider the moduli of stable sheaves on the product of elliptic curves. By using…

alg-geom · Mathematics 2008-02-03 Kota Yoshioka