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Multiplicative Unitaries are described in terms of a pair of commuting shifts of relative depth two. They can be generated from ambidextrous Hilbert spaces in a tensor C*-category. The algebraic analogue of the Takesaki-Tatsuuma Duality…

Operator Algebras · Mathematics 2007-05-23 S. Doplicher , C. Pinzari , J. E. Roberts

Defining conditions for irreducible tensor operators associated with the unitary irreducible corepresentations of compact quantum group algebras are deduced within the framework of the abstract carrier space formalism. It is shown that…

q-alg · Mathematics 2009-10-30 J. F. Cornwell

We describe the category of integrable sl(1|n)^ -modules with the positive central charge and show that the irreducible modules provide the full set of irreducible representations for the corresponding simple vertex algebra.

Representation Theory · Mathematics 2018-10-17 Maria Gorelik , Vera Serganova

A conjecture by Mackey and Higson claims that there is close relationship between irreducible representations of a real reductive group and those of its Cartan motion group. The case of irreducible tempered unitary representations has been…

Representation Theory · Mathematics 2016-10-14 Qijun Tan , Yijun Yao , Shilin Yu

We formulate the unitary rational orbifold conformal field theories in the algebraic quantum field theory framework. Under general conditions, we show that the orbifold of a given unitary rational conformal field theories generates a…

Quantum Algebra · Mathematics 2009-10-31 Feng Xu

A general notion of a quasi-finite algebra is introduced as an algebra graded by the set of all integers equipped with topologies on the homogeneous subspaces satisfying certain properties. An analogue of the regular bimodule is introduced…

Quantum Algebra · Mathematics 2007-05-23 Atsushi Matsuo , Kiyokazu Nagatomo , Akihiro Tsuchiya

We introduce and study an affine analogue of skew Young diagrams and tableaux on them. It turns out that the double affine Hecke algebra of type $A$ acts on the space spanned by standard tableaux on each diagram. It is shown that the…

Quantum Algebra · Mathematics 2007-05-23 Takeshi Suzuki , Monica Vazirani

The work is devoted to the variety of $2$-dimensional algebras over an algebraically closed field. Firstly, we classify such algebras modulo isomorphism. Then we describe the degenerations and the closures of principal algebra series in the…

Rings and Algebras · Mathematics 2020-04-03 Ivan Kaygorodov , Yury Volkov

We construct the induced representations of the null-plane quantum Poincar\'e and quantum kappa Galilei algebras in (1+1) dimensions. The induction procedure makes use of the concept of module and is based on the existence of a pair of Hopf…

Quantum Algebra · Mathematics 2011-09-22 O. Arratia , M. A. del Olmo

Representable implication algebras are known to be axiomatised by a finite number of equations (making the representation and finite representation problems decidable here). We show that this also holds in the context of unary (and binary)…

Logic · Mathematics 2023-01-09 Andrew Lewis-Smith Jaš Šemrl

Nonlinear $sl(2)$ algebras subtending generalized angular momentum theories are studied in terms of undeformed generators and bases. We construct their unitary irreducible representations in such a general context. The linear $sl(2)$-case…

q-alg · Mathematics 2008-11-26 B. Abdesselam , J. Beckers , A. Chakrabarti , N. Debergh

We present a study of the homological algebra of bimodules over $A_\infty$-algebras endowed with an involution. Furthermore we introduce a derived description of Hochschild homology and cohomology for involutive $A_\infty$-algebras.

Algebraic Topology · Mathematics 2016-01-05 Ramses Fernandez-Valencia

In this article, we introduce the singular twin monoid and its corresponding group, constructed from both algebraic and topological perspectives. We then classify all complex homogeneous $2$-local representations of this constructed group.…

Representation Theory · Mathematics 2026-02-05 Mohamad N. Nasser , Nafaa Chbili

We investigate the theory of induction in the setting of doubles of coideal $*$-subalgebras of compact quantum group Hopf $*$-algebras. We then exemplify parts of this theory in the particular case of quantum $SL(2,\mathbb{R})$, and compute…

Quantum Algebra · Mathematics 2025-02-18 Kenny De Commer

We introduce special classes of irreducible representations of groups: thick representations and dense representations. Denseness implies thickness, and thickness implies irreducibility. We show that absolute thickness and absolute…

Algebraic Geometry · Mathematics 2019-05-10 Kazunori Nakamoto , Yasuhiro Omoda

We investigate the general structure of the automorphism group and the Lie algebra of derivations of a finitely generated vertex operator algebra. The automorphism group is isomorphic to an algebraic group. Under natural assumptions, the…

Quantum Algebra · Mathematics 2007-05-23 C. Dong , R. L. Griess

Group representable relation algebras play an important role in the study of representable relation algebras. The class of distributive involutive FL-algebras (DInFL-algebras) generalises relation algebras, as well as Sugihara monoids and…

Logic in Computer Science · Computer Science 2026-01-23 Andrew Craig , Claudette Robinson

We construct a class of representations of the Heisenberg algebra in terms of the complex shift operators subject to the proper continuous limit imposed by the correspondence principle. We find a suitable Hilbert space formulation of our…

High Energy Physics - Theory · Physics 2007-05-23 Andrzej Z. Gorski , Jacek Szmigielski

We extend a classification of irreducible, almost commutative geometries whose spectral action is dynamically non-degenerate to internal algebras that have four simple summands.

High Energy Physics - Theory · Physics 2009-11-11 Jan-Hendrik Jureit , Thomas Schucker , Christoph Stephan

Exact indecomposable module categories over the tensor category of representations of Hopf algebras that are liftings of quantum linear spaces are classified.

Quantum Algebra · Mathematics 2014-02-26 Martin Mombelli
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