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Related papers: Lax operator algebras of type $G_2$

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We exhibit a family of linear operators related to the almost-periodic approach for the generalized Riemann hypothesis.

Number Theory · Mathematics 2013-06-21 Eric Saias

We consider representations of quadratic $R$-matrix algebras by means of certain first order ordinary differential operators. These operators turn out to act as parameter shifting operators on the Gauss hypergeometric function and its limit…

Quantum Algebra · Mathematics 2016-09-06 Tom H. Koornwinder , Vadim B. Kuznetsov

Let $G$ be a finite group. There is a standard theorem on the classification of $G$-equivariant finite dimensional simple commutative, associative, and Lie algebras (i.e., simple algebras of these types in the category of representations of…

Rings and Algebras · Mathematics 2015-12-25 Pavel Etingof

This paper focuses on the classification of classes of topological equivalence of finite group actions on Riemann surfaces. By the Riemann-Hurwitz bound, there are just finitely many groups that act conformally on a closed orientable…

Group Theory · Mathematics 2024-02-22 Ján Karabáš , Roman Nedela , Mária Skyvová

We develop a theory of toroidal vertex algebras and their modules, and we give a conceptual construction of toroidal vertex algebras and their modules. As an application, we associate toroidal vertex algebras and their modules to toroidal…

Quantum Algebra · Mathematics 2012-01-30 Haisheng Li , Shaobin Tan , Qing Wang

We complete the construction of raising and lowering operators, given in a previous work, for the orthogonal polynomials of hypergeometric type on non-homogeneous lattice, and extend these operators to the generalized orthogonal…

Mathematical Physics · Physics 2009-11-10 M. Lorente

We show that the following operator algebras have hyperarithmetic theory: the hyperfinite II$_1$ factor $\mathcal R$, $L(\Gamma)$ for $\Gamma$ a finitely generated group with solvable word problem, $C^*(\Gamma)$ for $\Gamma$ a finitely…

Operator Algebras · Mathematics 2020-06-11 Isaac Goldbring , Bradd Hart

We construct two superalgebras associated to a punctured Riemann surface. One of them is a Lie superalgebra of Krichever-Novikov type, the other one is a Jordan superalgebra. The constructed algebras are related in several ways (algebraic,…

Rings and Algebras · Mathematics 2011-04-22 Séverine Leidwanger , Sophie Morier-Genoud

The methods of integral operators on the cohomology of Hilbert schemes of points on surfaces are developed. They are used to establish integral bases for the cohomology groups of Hilbert schemes of points on a class of surfaces (and…

Algebraic Geometry · Mathematics 2007-05-23 Zhenbo Qin , Weiqiang Wang

We obtain an algorithmic construction of the isotropy lattice for a lifted action of a Lie group $G$ on $TM$ and $T^*M$ based only on the knowledge of $G$ and its action on $M$. Some applications to symplectic geometry are also shown.

Differential Geometry · Mathematics 2025-01-20 Miguel Rodriguez-Olmos

We classify subalgebras of the complex simple Lie algebra of type G2 up to conjugacy (by an inner automorphism).

Algebraic Geometry · Mathematics 2016-11-15 Evgeny Mayanskiy

There is a famous multiplication table of types of tensor product of two von Neumann algebras. We filled out the multiplication table of graded tensor product of two graded von Neumann algebras in special cases.

Operator Algebras · Mathematics 2025-08-15 Jumpei Tanaka

We construct a topology on the standard Hilbert module $l^2(\mathcal A)$ over a unital $W^*$-algebra $\mathcal A$ such that any "compact" operator, (i.e.\ any operator in the norm closure of the linear span of the operators of the form…

Operator Algebras · Mathematics 2018-05-23 Dragoljub J Kečkić , Zlatko Lazović

We present the Lax operator for the N=3 KdV hierarchy and consider its extensions. We also construct a new infinite family of N=2 supersymmetric hierarchies by exhibiting the corresponding super Lax operators. The new realization of N=4…

solv-int · Physics 2009-10-31 S. Krivonos , A. Pashnev , Z. Popowicz

We introduce a new class of finite dimensional gentle algebras, the surface algebras, which are constructed from an unpunctured Riemann surface with boundary and marked points by introducing cuts in internal triangles of an arbitrary…

Representation Theory · Mathematics 2011-04-05 Lucas David-Roesler , Ralf Schiffler

Let H_n be the Siegel upper half space and let F and G be automorphic forms on H_n of weights k and l, respectively. We give explicit examples of differential operators D acting on functions on H_n x H_n such that the restriction of…

alg-geom · Mathematics 2008-02-03 W. Eholzer , T. Ibukiyama

Let V be a finite dimensional complex superspace and G a simple (or a ``close'' to simple) Lie superalgebra of matrix type, i.e., a Lie subsuperalgebra in GL(V). Under the classical invariant theory for G we mean the description of…

Representation Theory · Mathematics 2007-05-23 Alexander Sergeev

In the present work, we study Hamiltonian systems on (co)adjoint orbits and propose a Lax pair formalism for Gelfand-Tsetlin integrable systems defined on (co)adjoint orbits of the compact Lie groups ${\rm{U}}(n)$ and ${\rm{SO}}(n)$. In the…

Symplectic Geometry · Mathematics 2021-05-24 Eder M. Correa , Lino Grama

We propose new types of integrable spinor models, generalizing the well known ones of: i) Nambu-Jona-Lasinio-Vaks-Larkin models, related to SU(N); ii) the Gross-Neveu models - SP(2N); and the iii) Zakharov-Mikhailov models - SO(N). We…

Exactly Solvable and Integrable Systems · Physics 2012-10-16 V. S. Gerdjikov

This is the second half of a two-part series studying tensor categories of unitary vertex operator algebras from a unitary point of view.

Quantum Algebra · Mathematics 2019-11-26 Bin Gui
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