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We show that for any coboundary Poisson Lie group G, the Poisson structure on G^* is linearizable at the group unit. This strengthens a result of Enriquez-Etingof-Marshall, who had established formal linearizability of G^* for…

Differential Geometry · Mathematics 2017-06-14 Anton Alekseev , Eckhard Meinrenken

When Daan Krammer and Stephen Bigelow independently proved that braid groups are linear, they used the Lawrence-Krammer-Bigelow representation for generic values of its variables q and t. The t variable is closely connected to the…

Group Theory · Mathematics 2014-11-05 Elizabeth Leyton Chisholm , Jon McCammond

We construct an action of the braid group B_N on the twisted quantized enveloping algebra U'_q(o_N) where the elements of B_N act as automorphisms. In the classical limit q -> 1 we recover the action of B_N on the polynomial functions on…

Quantum Algebra · Mathematics 2009-11-13 A. I. Molev , E. Ragoucy

In the present paper we introduce a quantum analogue of the classical folding of a simply-laced Lie algebra g to the non-simply-laced algebra g^sigma along a Dynkin diagram automorphism sigma of g For each quantum folding we replace g^sigma…

Quantum Algebra · Mathematics 2012-09-05 Arkady Berenstein , Jacob Greenstein

We define the notion of braided Coxeter category, which is informally a tensor category carrying compatible, commuting actions of a generalised braid group B_W and Artin's braid groups B_n on the tensor powers of its objects. The data which…

Quantum Algebra · Mathematics 2019-09-04 Andrea Appel , Valerio Toledano-Laredo

We construct a braiding operator in terms of the quantum dilogarithm function based on the quantum cluster algebra. We show that it is a q-deformation of the R-operator for which hyperbolic octrahedron is assigned. Also shown is that, by…

Quantum Algebra · Mathematics 2014-11-19 Kazuhiro Hikami , Rei Inoue

We classify Lagrangian subcategories of the representation category of a twisted quantum double of a finite group. In view of results of 0704.0195v2 this gives a complete description of all braided tensor equivalent pairs of twisted quantum…

Quantum Algebra · Mathematics 2009-11-13 Deepak Naidu , Dmitri Nikshych

Quantum Lorentz groups H admitting quantum Minkowski space V are selected. Natural structure of a quantum space G = V x H is introduced, defining a quantum group structure on G only for triangular H (q=1). We show that it defines a braided…

q-alg · Mathematics 2009-10-30 S. Zakrzewski

In this paper we describe connections among extraspecial 2-groups, unitary representations of the braid group and multi-qubit braiding quantum gates. We first construct new representations of extraspecial 2-groups. Extending the latter by…

Quantum Physics · Physics 2014-11-18 Eric C. Rowell , Yong Zhang , Yong-Shi Wu , Mo-Lin Ge

We give a new presentation of the braid group $B$ of the complex reflection group $G(e,e,r)$ which is positive and homogeneous, and for which the generators map to reflections in the corresponding complex reflection group. We show that this…

Group Theory · Mathematics 2007-05-23 David Bessis , Ruth Corran

In the algebra Sym(gl(m)) we consider Poisson pencils generated by the linear Poisson-Lie bracket {,}_{gl(m)} and that corresponding to the so-called Reflection Equation Algebra. Each bracket of such a pencil has the Poisson center…

Quantum Algebra · Mathematics 2010-02-09 D. I. Gurevich , P. A. Saponov

We introduce the notion of a braided Lie algebra consisting of a finite-dimensional vector space $\CL$ equipped with a bracket $[\ ,\ ]:\CL\tens\CL\to \CL$ and a Yang-Baxter operator $\Psi:\CL\tens\CL\to \CL\tens\CL$ obeying some axioms. We…

High Energy Physics - Theory · Physics 2009-10-22 Shahn Majid

The correspondence between Poisson structures and symplectic groupoids, analogous to the one of Lie algebras and Lie groups, plays an important role in Poisson geometry; it offers, in particular, a unifying framework for the study of…

Differential Geometry · Mathematics 2009-12-04 H. Bursztyn , M. Crainic , A. Weinstein , C. Zhu

There exists a multiplicative homomorphism from the braid group B to the Temperley-Lieb algebra TL. Moreover, the homomorphic images in TL of the simple elements form a basis for the vector space underlying TL. In analogy with the case of…

Group Theory · Mathematics 2024-12-04 Fabienne Chouraqui

In braided tensor categories we show the Maschke's theorem and give the necessary and sufficient conditions for double cross biproducts and crossbiproducts and biproducts to be bialgebras. We obtain the factorization theorem for braided…

Rings and Algebras · Mathematics 2007-11-06 Shouchuan Zhang

We check The Vaisman condition of geometric quantization for R-matrix type Poisson pencil on a coadjoint orbit of a compact Lie group. It is shown that this condition isn't satisfied.

q-alg · Mathematics 2008-02-03 Kotov Alexey

Under appropriate conditions, if one picks a commutative algebra A with action of group G in braided monoidal category C, the category of A modules in C obtains a natural crossed G-braided structure. In the case of general commutative…

Quantum Algebra · Mathematics 2024-10-31 Devon Stockall

We study one and two parameter quantizations of the function algebra on a semisimple orbit in the coadjoint representation of a simple Lie group subject to the condition that the multiplication on the quantized algebra is invariant under…

Quantum Algebra · Mathematics 2007-05-23 Joseph Donin , Dmitry Gurevich , Steve Shnider

Jiang-Hua Lu showed that any dynamical r-matrix for the pair $(g,u)$ naturally induces a Poisson homogeneous structure on $G/U$. She also proved that if $g$ is complex simple, $u$ is its Cartan subalgebra and $r$ is quasitriangular, then…

Quantum Algebra · Mathematics 2007-05-23 Eugene Karolinsky , Alexander Stolin

We suggest two explicit descriptions of the Poisson q-W algebras which are Poisson algebras of regular functions on certain algebraic group analogues of the Slodowy transversal slices to adjoint orbits in a complex semisimple Lie algebra g.…

Quantum Algebra · Mathematics 2017-09-20 A. Sevostyanov