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We construct an exact tensor functor from the category $\mathcal{A}$ of finite-dimensional graded modules over the quiver Hecke algebra of type $A_\infty$ to the category $\mathscr C_{B^{(1)}_n}$ of finite-dimensional integrable modules…

Representation Theory · Mathematics 2017-10-19 Masaki Kashiwara , Myungho Kim , Se-jin Oh

We classify differentiable structures on a line $\mathbb{L}$ with two origins being a non-Hausdorff but $T_1$ one-dimensional manifold obtained by ``doubling'' $0$. For $k\in\mathbb{N}\cup\{\infty\}$ let $H$ be the group of homeomorphisms…

Geometric Topology · Mathematics 2024-06-17 Mykola Lysynskyi , Sergiy Maksymenko

In a space-time, a conformal structure is defined by the distribution of light-cones. Geodesics are traced by freely falling particles, and the collection of all unparameterized geodesics determines the projective structure of the…

Differential Geometry · Mathematics 2015-10-02 Vladimir S. Matveev , Andrzej Trautman

We construct and study a new family of TQFTs based on nilpotent highest weight representations of quantum sl(2) at a root of unity indexed by generic complex numbers. This extends to cobordisms the non-semi-simple invariants defined in…

Geometric Topology · Mathematics 2014-04-30 Christian Blanchet , Francesco Costantino , Nathan Geer , Bertrand Patureau-Mirand

Following Nori's original idea we here provide certain motivic categories with a canonical tensor structure. These motivic categories are associated to a cohomological functor on a suitable base category and the tensor structure is induced…

Algebraic Geometry · Mathematics 2020-07-29 L. Barbieri-Viale , M. Prest

In this paper, we use new results together with established facts about Thurston's compactification of Teichm\"uller space to address the geometric P=W conjecture for $\mathrm{SL}(2,\mathbb{C})$, which concerns projective compactifications…

Geometric Topology · Mathematics 2026-02-03 Ashwin Ayilliath-Kutteri , Mohammad Farajzadeh-Tehrani , Charles Frohman

We provide a description of Voevodsky's $\infty$-category of motivic spectra in terms of the subcategory of motives of smooth proper varieties. As applications, we construct weight filtrations on the Betti and \'{e}tale cohomologies of…

Algebraic Geometry · Mathematics 2025-10-21 Peter J. Haine , Piotr Pstrągowski

We establish rigid tensor category structure on finitely-generated weight modules for the subregular $W$-algebras of $\mathfrak{sl}_n$ at levels $ - n + \frac{n}{n+1}$ (the $\mathcal{B}_{n+1}$-algebras of Creutzig-Ridout-Wood) and at levels…

Quantum Algebra · Mathematics 2024-02-28 Thomas Creutzig , Robert McRae , Jinwei Yang

We show that the categories PsTop and Lim of pseudotopological spaces and limit spaces, respectively, admit cofibration category structures, and that PsTop admits a model category structure, giving several ways to simultaneously study the…

Algebraic Topology · Mathematics 2022-10-03 Antonio Rieser

We study the continuity and compactness of embeddings for radial Besov and Triebel-Lizorkin spaces with weights in the Muckenhoupt class $A_\infty$. The main tool is a discretization in terms of an almost orthogonal wavelet expansion…

Classical Analysis and ODEs · Mathematics 2015-04-07 Pablo L. De Nápoli , Irene Drelichman , Nicolas Saintier

We study a number of local and global classification problems in generalized complex geometry. In the first topic, we characterize the local structure of generalized complex manifolds by proving that a generalized complex structure near a…

Differential Geometry · Mathematics 2012-05-27 Michael Bailey

Given a relatively projective birational morphism $f\colon X\to Y$ of smooth algebraic spaces with dimension of fibers bounded by 1, we construct tilting relative (over $Y$) generators $T_{X,f}$ and $S_{X,f}$ in $\mathcal{D}^b(X)$. We…

Algebraic Geometry · Mathematics 2017-09-19 Agnieszka Bodzenta , Alexey Bondal

In the first part, we further advance the study of category theory in a strong balanced factorization category C [Pisani, 2008], a finitely complete category endowed with two reciprocally stable factorization systems such that X \to 1 is in…

Category Theory · Mathematics 2009-04-27 Claudio Pisani

For any cohomology theory $H$ that can be factorized through (the Morel-Voevodsky's triangulated motivic homotopy category) $SH^{S^1}(k)$ (or through $SH(k)$) we establish the $SH^{S^1}(k)$-functorialty (resp. $SH(k)$-one) of coniveau…

Algebraic Geometry · Mathematics 2015-07-14 Mikhail V. Bondarko

This paper is dedicated to the study of weight complexes (defined on triangulated categories endowed with weight structures) and their applications. We introduce pure (co)homological functors that "ignore all non-zero weights"; these have a…

K-Theory and Homology · Mathematics 2020-08-14 Mikhail V. Bondarko

We construct a class of non-weight modules over the twisted $N=2$ superconformal algebra $\T$. Let $\mathfrak{h}=\C L_0\oplus\C G_0$ be the Cartan subalgebra of $\T$, and let $\mathfrak{t}=\C L_0$ be the Cartan subalgebra of even part…

Representation Theory · Mathematics 2021-02-26 Haibo Chen , Xiansheng Dai , Mingqiang Liu

In a series of papers Tsirelson constructed from measure types of random sets and generalised random processes a new range of examples for continuous tensor product systems of Hilbert spaces introduced by Arveson for classifying…

Probability · Mathematics 2007-05-23 Volkmar Liebscher

This paper classifies t-structures on the local derived category of a 3-fold flopping contraction, that are intermediate with respect to the heart of perverse coherent sheaves. Equivalently, this describes the complete lattice of torsion…

Algebraic Geometry · Mathematics 2026-03-09 Parth Shimpi

A symmetric tensor is called copositive if it generates a multivariate form taking nonnegative values over the nonnegative orthant. Copositive tensors have found important applications in polynomial optimization and tensor complementarity…

Combinatorics · Mathematics 2016-03-08 Haibin Chen , Zhenghai Huang , Liqun Qi

We investigate the enumerative geometry of point configurations in projective space. We define "projective configuration counts": these enumerate configurations of points in projective space such that certain specified subsets are in fixed…

Algebraic Geometry · Mathematics 2026-02-09 Alex Fink , Navid Nabijou , Rob Silversmith