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$\mathbb{Z}_n$ S-folds of 5d SCFTs, including $T_N$, which lead to brane webs with $E_{6,7,8}$ 7-branes were discussed recently. We generalize the construction to `fractional quotients', which are based on $\mathbb{Z}_n$ actions linking…

高能物理 - 理论 · 物理学 2023-04-26 Fabio Apruzzi , Oren Bergman , Hee-Cheol Kim , Christoph F. Uhlemann

De Concini, Kac, and Procesi defined a family of subalgebras Uq[w] of the quantized enveloping algebra Uq(g) associated to elements w in the Weyl group of a simple Lie algebra g. These algebras are called quantum Schubert cell algebras. We…

量子代数 · 数学 2012-07-12 Garrett Johnson , Christopher Nowlin

Reductions of N-wave type equations related to simple Lie algebras and the hierarchy of their Hamiltonian structures are studied. The reduction group G_R is realized as a subgroup of the Weyl group of the corresponding algebra. Some of the…

可精确求解与可积系统 · 物理学 2007-05-23 V. S. Gerdjikov , G. G. Grahovski

In this paper, we first discuss the relation between VB-Courant algebroids and E-Courant algebroids and construct some examples of E-Courant algebroids. Then we introduce the notion of a generalized complex structure on an E-Courant…

微分几何 · 数学 2019-08-15 Honglei Lang , Yunhe Sheng , Aissa Wade

This article extends the works of Gon\c{c}alves, Guaschi, Ocampo [GGO] and Marin [MAR2] on finite subgroups of the quotients of generalized braid groups by the derived subgroup of their pure braid group. We get explicit criteria for…

群论 · 数学 2017-09-07 Vincent Beck , Ivan Marin

The general procedure of constructing a consistent covariant Dirac-type bracket for models with mixed first and second class constraints is presented. The proposed scheme essentially relies upon explicit separation of the initial…

高能物理 - 理论 · 物理学 2011-07-19 A. A. Deriglazov , A. V. Galajinsky , S. L. Lyakhovich

In this work, we develop new generalization bounds for neural networks trained on data supported on Riemannian manifolds. Existing generalization theories often rely on complexity measures derived from Euclidean geometry, which fail to…

机器学习 · 计算机科学 2025-07-08 Krisanu Sarkar

A general model for geometric structures on differentiable manifolds is obtained by deforming infinitesimal symmetries. Specifically, this model consists of a Lie algebroid, equipped with an affine connection compatible with the Lie…

微分几何 · 数学 2012-03-07 Anthony D. Blaom

We describe an extension of the axioms of quantization to the case of 2-plectic manifolds. We show how such quantum spaces can be obtained as stable classical solutions in a zero-dimensional 3-algebra reduced model obtained by dimensional…

高能物理 - 理论 · 物理学 2011-06-10 Christian Saemann , Richard J. Szabo

A new tool for the model theory of differentially closed fields and of compact complex manifolds is here developed. In such settings, it is shown that a type internal to the field of constants (resp. to the projective line) admits a maximal…

代数几何 · 数学 2023-10-13 Rémi Jaoui , Rahim Moosa

Let F be a global field, and let S be a finite set of places of F containing all archimedean places. Consider the product X of the symmetric spaces and Bruhat-Tits buildings for PGL_d of the completions of F at archimedean and…

数论 · 数学 2016-12-12 Takako Fukaya , Kazuya Kato , Romyar Sharifi

Quotient quiver subtraction is a simple combinatorial prescription for gauging Coulomb branch isometry subgroups of 3d $\mathcal{N}=4$ quiver gauge theories. This paper uses Type IIB brane constructions with $\mathrm{O5}$ planes to extend…

高能物理 - 理论 · 物理学 2026-03-11 Sam Bennett , Amihay Hanany , Guhesh Kumaran

In this paper we propose a noncommutative generalization of the relationship between compact K\"ahler manifolds and complex projective algebraic varieties. Beginning with a prequantized K\"ahler structure, we use a holomorphic Poisson…

微分几何 · 数学 2022-03-09 Francis Bischoff , Marco Gualtieri

The paper is devoted to peculiarities of the deformation quantization in the algebro-geometric context. A direct application of the formality theorem to an algebraic Poisson manifold gives a canonical sheaf of categories deforming coherent…

代数几何 · 数学 2008-11-26 M. Kontsevich

In the usual procedure for toroidal Kaluza-Klein reduction, all the higher-dimensional fields are taken to be independent of the coordinates on the internal space. It has recently been observed that a generalisation of this procedure is…

高能物理 - 理论 · 物理学 2009-10-07 I. V. Lavrinenko , H. Lu , C. N. Pope

We investigate a quantization problem which asks for the construction of an algebra for relative elliptic problems of pseudodifferential type associated to smooth embeddings. Specifically, we study the problem for embeddings in the category…

微分几何 · 数学 2017-10-09 Karsten Bohlen , René Schulz

We study the structure and representations of a family of vertex algebras obtained from affine superalgebras by quantum reduction. As an application, we obtain in a unified way free field realizations and determinant formulas for all…

数学物理 · 物理学 2014-01-17 Victor Kac , Minoru Wakimoto

Overparameterized shallow neural networks admit substantial parameter redundancy: distinct parameter vectors may represent the same predictor due to hidden-unit permutations, rescalings, and related symmetries. As a result, geometric…

机器学习 · 计算机科学 2026-03-24 Hang-Cheng Dong , Pengcheng Cheng

Modified braid equations satisfied by generalized ${\hat R}$ matrices (for a {\em given} set of group relations obeyed by the elements of ${\sf T}$ matrices ) are constructed for q-deformed quantum groups $GL_q (N), SO_q (N)$ and $Sp_q (N)$…

量子代数 · 数学 2015-06-26 A. Chakrabarti , R. Chakrabarti

The regular reduction of a Dirac manifold acted upon freely and properly by a Lie group is generalized to a nonfree action. For this, several facts about $G$-invariant vector fields and one-forms are shown.

微分几何 · 数学 2011-10-18 Madeleine Jotz , Tudor S. Ratiu , Jedrzej Sniatycki