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The generation of entangled states and their degree of entanglement is studied ab initio in a relativistic formulation for the case of two interacting spin-1/2 charged particles. In the realm of quantum electrodynamics we derive the…

Quantum Physics · Physics 2007-05-23 Jiannis Pachos , Enrique Solano

We develop the general formalism of approximable triangulated categories, and prove two representability theorems.

Category Theory · Mathematics 2025-05-15 Amnon Neeman

Differential graded categories enhance our understanding of triangulated categories appearing in algebra and geometry. In this survey, we review their foundations and report on recent work by Drinfeld, Dugger-Shipley, ..., Toen and…

K-Theory and Homology · Mathematics 2007-05-23 Bernhard Keller

We give a sufficient condition for an Ext-finite triangulated category to be saturated. Saturatedness means that every contravariant cohomological functor of finite type to vector spaces is representable. The condition consists in existence…

Algebraic Geometry · Mathematics 2007-05-23 Alexei Bondal , Michel Van den Bergh

We address the problem of incremental sequence classification, where predictions are updated as new elements in the sequence are revealed. Drawing on temporal-difference learning from reinforcement learning, we identify a…

This paper surveys some recent results, concerning the intrinsicness of natural subcategories of weakly approximable triangulated categories. We also review the results about uniqueness of enhancements of triangulated categories, with the…

Algebraic Geometry · Mathematics 2024-12-31 Alberto Canonaco , Amnon Neeman , Paolo Stellari

With the capacity of modeling long-range dependencies in sequential data, transformers have shown remarkable performances in a variety of generative tasks such as image, audio, and text generation. Yet, taming them in generating less…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 An-Chieh Cheng , Xueting Li , Sifei Liu , Min Sun , Ming-Hsuan Yang

A generic rectangulation is a partition of a rectangle into finitely many interior-disjoint rectangles, such that no four rectangles meet in a point. In this work we present a versatile algorithmic framework for exhaustively generating a…

Combinatorics · Mathematics 2021-11-02 Arturo Merino , Torsten Mütze

Generative models can be used to synthesize 3D objects of high quality and diversity. However, there is typically no control over the properties of the generated object.This paper proposes a novel generative adversarial network (GAN) setup…

Computer Vision and Pattern Recognition · Computer Science 2022-09-12 Larissa T. Triess , Andre Bühler , David Peter , Fabian B. Flohr , J. Marius Zöllner

We give a simultaneous generalization of recollements of abelian categories and triangulated categories, which we call recollements of extriangulated categories. For a recollement $(\mathcal{A}$, $\mathcal{B}$, $\mathcal{C})$ of…

Representation Theory · Mathematics 2020-12-08 Li Wang , Jiaqun Wei , Haicheng Zhang

Existing metrics for assessing question generation not only require costly human reference but also fail to take into account the input context of generation, rendering the lack of deep understanding of the relevance between the generated…

Computation and Language · Computer Science 2022-05-02 Xiaoqiang Wang , Bang Liu , Siliang Tang , Lingfei Wu

In this paper we study derived categories of nodal singularities. We show that for all nodal singularities there is a categorical resolution whose kernel is generated by a $2$ or $3$-spherical object, depending on the dimension. We apply…

Algebraic Geometry · Mathematics 2023-05-10 Warren Cattani , Franco Giovenzana , Shengxuan Liu , Pablo Magni , Luigi Martinelli , Laura Pertusi , Jieao Song

In this article we construct various models for singularity categories of modules over differential graded rings. The main technique is the connection between abelian model structures, cotorsion pairs and deconstructible classes, and our…

Category Theory · Mathematics 2012-05-22 Hanno Becker

Unconditional scene inference and generation are challenging to learn jointly with a single compositional model. Despite encouraging progress on models that extract object-centric representations (''slots'') from images, unconditional…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Patrick Emami , Pan He , Sanjay Ranka , Anand Rangarajan

We extend Ng's characterisation of torsion pairs in the 2-Calabi-Yau triangulated category generated by a 2-spherical object to the characterisation of torsion pairs in the w-Calabi-Yau triangulated category, $T_w$, generated by a…

Representation Theory · Mathematics 2015-11-09 Raquel Coelho Simoes , David Pauksztello

We propose a successive generation of cutting inequalities for binary quadratic optimization problems. Multiple cutting inequalities are successively generated for the convex hull of the set of the optimal solutions $\subset \{0, 1\}^n$,…

Optimization and Control · Mathematics 2021-07-20 Sunyoung Kim , Masakazu Kojima

Let $G$ be an abelian group and $\mathbb{K}$ an algebraically closed field of characteristic zero. A. Valenti and M. Zaicev described the $G$-gradings on upper block-triangular matrix algebras provided that $G$ is finite. We prove that…

Rings and Algebras · Mathematics 2018-03-28 Alex Ramos , Diogo Diniz

We consider the finite generation property for cohomology of a finite tensor category C, which requires that the self-extension algebra of the unit Ext*_C(1,1) is a finitely generated algebra and that, for each object V in C, the graded…

Quantum Algebra · Mathematics 2019-06-07 Cris Negron , Julia Yael Plavnik

Small, finite entities are easier and simpler to manipulate than gigantic, infinite ones. Consequently huge chunks of mathematics are devoted to methods reducing the study of big, cumbersome objects to an analysis of their finite building…

Category Theory · Mathematics 2022-11-15 Amnon Neeman

Multiphoton entangled states are pivotal resources for implementing optical quantum information protocols. Recently, energy-time-entangled triphotons have been observed in hot atomic ensembles. However, in these protocols, the complex…

Quantum Physics · Physics 2026-04-21 Ling Niu , Zhiyin Duan , Na Liu , Yitong Zhai , Shaoyan Liu , Junsheng Li , Donghai Zhang , Da Zhang