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We study a one-dimensional lattice model of interacting spinless fermions. This model is integrable for both periodic and open boundary conditions, the latter case includes the presence of Grassmann valued non-diagonal boundary fields…

Mathematical Physics · Physics 2013-04-19 André M. Grabinski , Holger Frahm

Let G=GL(N), K=GL(p)xGL(q), where p+q=N, and n be a positive integer. We construct a functor from the category of Harish-Chandra modules for the pair (G,K) to the category of representations of the degenerate affine Hecke algebra of type…

Representation Theory · Mathematics 2010-04-06 Pavel Etingof , Rebecca Freund , Xiaoguang Ma

In this work we obtain the exact solution of quantum integrable system associated with the Lie superalgebra $\mathfrak{gl}(1|1)$, both for periodic and for generic open boundary conditions. By means of the fusion technique we derive a…

Mathematical Physics · Physics 2026-02-06 Xiaotian Xu , Wuxiao Wen , Tao Yang , Xin Zhang , Junpeng Cao

In this paper we will give a complete classification of the spectral transfer morphisms between the unipotent affine Hecke algebras of the various inner forms of a given quasi-split absolutely simple algebraic group, defined over a…

Representation Theory · Mathematics 2015-10-13 Eric Opdam

Hecke algebras are usually defined algebraically, via generators and relations. We give a new algebro-geometric construction of affine and double-affine Hecke algebras (the former is known as the Iwahori-Hecke algebra, and the latter was…

alg-geom · Mathematics 2008-02-03 Victor Ginzburg , Mikhail Kapranov , Eric Vasserot

We introduce and solvev a special family of integrable interacting vertex models that generalizes the well known six-vertex model. In addition to the usual nearest-neighbor interactions among the vertices, there exist extra hard-core…

Statistical Mechanics · Physics 2009-11-13 Francisco C. Alcaraz , Matheus J. Lazo

We introduce a fermionic formula associated with any quantum affine algebra U_q(X^{(r)}_N). Guided by the interplay between corner transfer matrix and Bethe ansatz in solvable lattice models, we study several aspects related to…

Quantum Algebra · Mathematics 2007-05-23 G. Hatayama , A. Kuniba , M. Okado , T. Takagi , Z. Tsuboi

The so called quantized algebras of functions on affine Hecke algebras of type A and the corresponding q-Schur algebras are defined and their irreducible unitarizable representations are classified.

Quantum Algebra · Mathematics 2007-05-23 Do Ngoc Diep

We consider the problem of defining an action of Hecke operators on the coherent cohomology of certain integral models of Shimura varieties. We formulate a general conjecture describing which Hecke operators should act integrally and solve…

Number Theory · Mathematics 2021-07-01 Najmuddin Fakhruddin , Vincent Pilloni

The fusion procedure provides a way to construct new solutions to the Yang-Baxter equation. In the case of the symmetric group the fusion procedure has been used to construct diagonal matrix elements using a decomposition of the Young…

Representation Theory · Mathematics 2007-08-09 James Grime

This is basically a summary of [Mu]. The focus of the paper is the explicit computation of Hecke operators for period functions. In particular we compute the matrix representations of the 2nd Hecke operator on period functions for the full…

Number Theory · Mathematics 2009-04-20 Tobias Mühlenbruch

It has been understood that correlation functions of multi-trace operators in ${\cal N}=4$ SYM can be neatly computed using the group algebra of symmetric groups or walled Brauer algebras. On the other hand such algebras have been known to…

High Energy Physics - Theory · Physics 2015-06-19 Yusuke Kimura

The functional relations of the transfer matrices of fusion hierachies for six- and eight-vertex models with open boundary conditions have been presented in this paper. We have shown the su($2$) fusion rule for the models with more general…

High Energy Physics - Theory · Physics 2010-04-08 Yu-kui Zhou

The diagonalisation of the transfer matrices of solvable vertex models with alternating spins is given. The crystal structure of (semi-)infinite tensor products of finite-dimensional $U_q(\hat{sl}_2)$ crystals with alternating dimensions is…

Quantum Algebra · Mathematics 2016-12-30 Jin Hong , Seok-Jin Kang , Tetsuji Miwa , Robert Weston

Circuit representations are becoming the lingua franca to express and reason about tractable generative and discriminative models. In this paper, we show how complex inference scenarios for these models that commonly arise in machine…

Machine Learning · Statistics 2021-02-12 Antonio Vergari , YooJung Choi , Anji Liu , Stefano Teso , Guy Van den Broeck

We study the Hecke algebra $\H(\bq)$ over an arbitrary field $\FF$ of a Coxeter system $(W,S)$ with independent parameters $\bq=(q_s\in\FF:s\in S)$ for all generators. This algebra is always linearly spanned by elements indexed by the…

Representation Theory · Mathematics 2014-12-04 Jia Huang

Fix a prime N, and consider the action of the Hecke operator T_N on the space M_k(SL(2,Z)) of modular forms of full level and varying weight k. The coefficients of the matrix of T_N with respect to the basis {E_4^i E_6^j | 4i + 6j = k} for…

Number Theory · Mathematics 2012-04-09 Hala Hajj Shehadeh , Samar Jaafar , Kamal Khuri-Makdisi

We examine links between the theory of braces and set theoretical solutions of the Yang-Baxter equation, and fundamental concepts from the theory of quantum integrable systems. More precisely, we make connections with Hecke algebras and we…

Mathematical Physics · Physics 2022-06-30 Anastasia Doikou , Agata Smoktunowicz

Let $k$ be a commutative $\mathbb{Q}$-algebra. We study families of functors between categories of finitely generated $R$-modules which are defined for all commutative $k$-algebras $R$ simultaneously and are compatible with base changes.…

Category Theory · Mathematics 2020-01-29 Martin Brandenburg

We develop Yang-Baxter integrability structures connected with the quantum affine superalgebra Uq(\hat sl(2|1)). Baxter's Q-operators are explicitly constructed as supertraces of certain monodromy matrices associated with (q-deformed)…

High Energy Physics - Theory · Physics 2009-01-23 Vladimir V. Bazhanov , Zengo Tsuboi