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Given an orientable weakly self-dual manifold X of rank two, we build a geometric realization of the Lie algebra sl(6,C) as a naturally defined algebra L of endomorphisms of the space of differential forms of X. We provide an explicit…

Differential Geometry · Mathematics 2007-05-23 Giovanni Gaiffi , Michele Grassi

We examine the gauge generating nature of the translational subgroup of Wigner's little group for the case of massless tensor gauge theories and show that the gauge transformations generated by the translational group is only a subset of…

High Energy Physics - Theory · Physics 2009-11-10 Tomy Scaria

Tilting modules over commutative rings were recently classified in [12]: they correspond bijectively to faithful Gabriel topologies of finite type. In this note we extend this classification by dropping faithfulness. The counterpart of an…

Representation Theory · Mathematics 2016-02-16 Lidia Angeleri Hügel , Michal Hrbek

Many language generation models are now available for a wide range of generation tasks, including machine translation and summarization. Combining such diverse models may lead to further progress, but ensembling generation models is…

Computation and Language · Computer Science 2022-10-31 Jungo Kasai , Keisuke Sakaguchi , Ronan Le Bras , Hao Peng , Ximing Lu , Dragomir Radev , Yejin Choi , Noah A. Smith

A rectangulation is a tiling of a rectangle by a finite number of rectangles. The rectangulation is called generic if no four of its rectangles share a single corner. We initiate the enumeration of generic rectangulations up to…

Combinatorics · Mathematics 2026-05-13 Nathan Reading

This is mostly an expository note about an example communicated to the author by Aise Johan de Jong. In a triangulated category $T$ an object $G$ is said to be a classical generator when the smallest triangulated subcategory containing $G$…

Algebraic Geometry · Mathematics 2025-10-30 Dmitrii Pirozhkov

In this paper, we propose a multi-generator extension to the adversarial training framework, in which the objective of each generator is to represent a unique component of a target mixture distribution. In the training phase, the generators…

Machine Learning · Computer Science 2018-02-07 Karim Said Barsim , Lirong Yang , Bin Yang

Let $X$ be a perfectoid space with tilt $X^\flat$. We construct a canonical map $\theta:\operatorname{Pic} X^\flat\to\lim\operatorname{Pic} X$ where the (inverse) limit is taken over the $p$-power map, and show that $\theta$ is an…

Algebraic Geometry · Mathematics 2022-02-24 Gabriel Dorfsman-Hopkins

In this book, we establish a theory of adelic line bundles over quasi-projective varieties over finitely generated fields. Besides definitions of adelic line bundles, we consider their intersection theory, volume theory, and height theory,…

Number Theory · Mathematics 2025-06-17 Xinyi Yuan , Shou-Wu Zhang

Bundle gerbes are a higher version of line bundles, we present nonabelian bundle gerbes as a higher version of principal bundles. Connection, curving, curvature and gauge transformations are studied both in a global coordinate independent…

High Energy Physics - Theory · Physics 2009-11-10 Paolo Aschieri , Luigi Cantini , Branislav Jurco

We give a construction that in many cases gives a simple way to construct infinite families of algebras that are not Morita equivalent, but are all derived equivalent to the same block algebra of a finite group, and apply it to some small…

Representation Theory · Mathematics 2013-10-10 Jeremy Rickard

This work concerns a construction of pattern-avoiding inversion sequences from right to left we call the generating tree growing on the left. We first apply this construction to inversion sequences avoiding 201 and 210, resulting in a new…

Combinatorics · Mathematics 2025-09-24 Benjamin Testart

Computer algebra systems are complex software systems that cover a wide range of scientific and practical problems. However, the absolute coverage cannot be achieved. Often, it is required to create a user extension for an existing computer…

Mathematical Software · Computer Science 2020-05-12 Migran N. Gevorkyan , Anna V. Korolkova , Dmitry S. Kulyabov , Leonid A. Sevastianov

We give a construction of Kirchberg algebras from graphs. By using product graphs in the construction we are able to provide models for general (UCT) Kirchberg algebras while maintaining the explicit generators and relations of the…

Operator Algebras · Mathematics 2007-05-23 Jack Spielberg

We introduce a new method to study mixed characteristic deformation of line bundles. In particular, for sufficiently large smooth projective families $f : \mathscr{X} \to \mathscr{S}$ defined over the ring of $N$-integers…

Algebraic Geometry · Mathematics 2026-02-11 David Urbanik , Ziquan Yang

We classify, up to derived (equivalently, tilting-cotilting) equivalence all nondegenerate gentle two-cycle algebras. We also give a partial classification and formulate a conjecture in the degenerate case.

Representation Theory · Mathematics 2007-10-23 Grzegorz Bobinski , Piotr Malicki

The main result of this paper is that there is an additive equivalence between $\overline{\mathcal{C}}_n$, the Paquette-Yildirim completion of the discrete cluster categories of Dynkin type $A_{\infty}$, and the perfect derived category of…

Representation Theory · Mathematics 2025-10-15 Marina Godinho , Dave Murphy

We propose an approach to study logarithmic sheaves T(-log A) associated with a hyperplane arrangements A on the projective space, based on projective duality, direct image functors and vector bundles methods. We focus on freeness of line…

Algebraic Geometry · Mathematics 2017-05-17 Daniele Faenzi , Jean Vallès

We calculate the generating functions for the number of tilings of rectangles of various widths by the right tromino, the $L$ tetromino, and the $T$ tetromino. This allows us to place lower bounds on the entropy of tilings of the plane by…

Combinatorics · Mathematics 2007-05-23 Cristopher Moore

This paper proposes a fully-automatic, text-guided generative method for producing perfectly-repeating, periodic, tile-able 2D imagery, such as the one seen on floors, mosaics, ceramics, and the work of M.C. Escher. In contrast to square…

Computer Vision and Pattern Recognition · Computer Science 2024-06-19 Noam Aigerman , Thibault Groueix
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