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We outline the main features of the definitions and applications of crossed complexes and cubical $\omega$-groupoids with connections. These give forms of higher homotopy groupoids, and new views of basic algebraic topology and the…

Algebraic Topology · Mathematics 2008-10-10 Ronald Brown

We give an alternative presentation of Khovanov homology of links with strict functoriality result over integers. The construction uses an oriented $sl(2)$ state model allowing a natural definition of the boundary operator as twisted action…

Geometric Topology · Mathematics 2014-05-29 Christian Blanchet

Let G be a reductive algebraic group over a field of prime characteristic. One can associate to G (or subgroups thereof) its Lie algebra, its Frobenius kernels, and the finite Chevalley group of points over a finite field. The…

Representation Theory · Mathematics 2023-07-10 Christopher P. Bendel

We generalize the operadic approach to algebraic quantum field theory [arXiv:1709.08657] to a broader class of field theories whose observables on a spacetime are algebras over any single-colored operad. A novel feature of our framework is…

Mathematical Physics · Physics 2019-10-22 Simen Bruinsma , Alexander Schenkel

The basic methods of constructing the sets of mutually unbiased bases in the Hilbert space of an arbitrary finite dimension are discussed and an emerging link between them is outlined. It is shown that these methods employ a wide range of…

Quantum Physics · Physics 2009-11-10 Michel R. P. Planat , Haret Rosu , Serge Perrine , Metod Saniga

The quiver Hopf algebras are classified by means of ramification systems with irreducible representations. This leads to the classification of Nichols algebras over group algebras and pointed Hopf algebras of type one.

Quantum Algebra · Mathematics 2013-03-25 Shouchuan Zhang , Hui-Xiang Chen , Yao-Zhong Zhang

We develop the general theory for the construction of Extended Topological Quantum Field Theories (ETQFTs) associated with the Costantino-Geer-Patureau quantum invariants of closed 3-manifolds. In order to do so, we introduce relative…

Geometric Topology · Mathematics 2022-09-20 Marco De Renzi

In this paper, we show that quantum twist maps, introduced by Lenagan-Yakimov, induce bijections between dual canonical bases of quantum nilpotent subalgebras. As a corollary, we show the unitriangular property between dual canonical bases…

Quantum Algebra · Mathematics 2017-08-22 Yoshiyuki Kimura , Hironori Oya

We construct some extension ({\it Stable Field Theory}) of Cohomological Field Theory. The Stable Field Theory is a system of homomorphisms to some vector spaces generated by spheres and disks with punctures. It is described by a formal…

Mathematical Physics · Physics 2009-11-07 S. M. Natanzon

This paper addresses the question of how categorical symmetries act on extended operators in quantum field theory. Building on recent results in two dimensions, we introduce higher tube categories and algebras associated to higher fusion…

High Energy Physics - Theory · Physics 2023-05-30 Thomas Bartsch , Mathew Bullimore , Andrea Grigoletto

For smooth finite dimensional manifolds, we characterise gerbes with connection as functors on a certain surface cobordism category. This allows us to relate gerbes with connection to Turaev's 1+1-dimensional homotopy quantum field…

Algebraic Topology · Mathematics 2014-10-01 Ulrich Bunke , Paul Turner , Simon Willerton

We construct a two-level weighted TQFT whose structure coefficents are equivariant intersection numbers on moduli spaces of admissible covers. Such a structure is parallel (and strictly related) to the local Gromov-Witten theory of curves…

Algebraic Geometry · Mathematics 2007-05-23 Renzo Cavalieri

Applying a result of abstract ring theory we get that bijective additive mappings on standard algebras of unbounded operators preserving zero products are multiples of ring isomorphisms. The structure of additive bijective mappings on…

Operator Algebras · Mathematics 2007-05-23 Werner Timmermann

We provide an analog of the Drinfeld quantum double construction in the context of crossed Hopf group coalgebras introduced by Turaev. We prove that, provided the base group is finite, the double of a semisimple crossed Hopf group coalgebra…

Quantum Algebra · Mathematics 2007-05-23 Marco Zunino

We give a presentation of the $n$-dimensional oriented cobordism category $\text{Cob}_n$ with generators corresponding to diffeomorphisms and surgeries along framed spheres, and a complete set of relations. Hence, given a functor $F$ from…

Geometric Topology · Mathematics 2018-08-31 András Juhász

We expand Topological Field Theory on some special CW-complexes (brane complexes). This Brane Topological Field Theory one-to-one corresponds to infinite dimensional Frobenius Algebras, graduated by CW-complexes of lesser dimension. We…

Geometric Topology · Mathematics 2009-07-18 Sergey M. Natanzon

We prove that the BRST complex of a topological conformal field theory is a homotopy Gerstenhaber algebra, as conjectured by Lian and Zuckerman in 1992. We also suggest a refinement of the original conjecture for topological vertex operator…

q-alg · Mathematics 2008-02-03 Takashi Kimura , Alexander A. Voronov , Gregg J. Zuckerman

It is observed that the shifted Poisson structure (antibracket) on the solution complex of Klein-Gordon and linear Yang-Mills theory on globally hyperbolic Lorentzian manifolds admits retarded/advanced trivializations (analogs of…

Mathematical Physics · Physics 2020-07-17 Marco Benini , Simen Bruinsma , Alexander Schenkel

We introduce a central extension of the preprojective algebra of a finite Dynkin quiver (depending on a regular weight for the corresponding root system), whose natural deformed version is flat (unlike that for the preprojective algebra).…

Representation Theory · Mathematics 2007-05-23 Pavel Etingof , Eric Rains

Following a project of developing conventions and notations for informal type theory carried out in the homotopy type theory book for a framework built out of an augmentation of constructive type theory with axioms governing…

Logic in Computer Science · Computer Science 2018-06-25 Bruno Bentzen
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