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We construct projective unitary representations of the smooth Deligne cohomology group of a compact oriented Riemannian manifold of dimension 4k+1, generalizing positive energy representations of the loop group of the circle. We also…

Representation Theory · Mathematics 2007-05-23 Kiyonori Gomi

We give a full classification, up to equivalence, of finite-dimensional graded division algebras over the field of real numbers. The grading group is any abelian group.

Rings and Algebras · Mathematics 2018-03-06 Yuri Bahturin , Mikhail Zaicev

We study not necessarily associative (NNA) division algebras over the reals. We classify in this paper series those that admit a grading over a finite group $G$, and have a basis $\{v_g|g\in G\}$ as a real vector space, and the product of…

Rings and Algebras · Mathematics 2013-07-25 L. A. Wills-Toro

It is proved that each of compact linear groups of one special type admits a polynomial factorization map onto a real vector space. More exactly, the group is supposed to be non-commutative one-dimensional and to have two connected…

Algebraic Geometry · Mathematics 2014-11-24 O. G. Styrt

Equivariance has emerged as a desirable property of representations of objects subject to identity-preserving transformations that constitute a group, such as translations and rotations. However, the expressivity of a representation…

Machine Learning · Computer Science 2022-02-08 Matthew Farrell , Blake Bordelon , Shubhendu Trivedi , Cengiz Pehlevan

We study irreducible *-representations of a certain quantization of the algebra of polynomial functions on a generalized flag manifold regarded as a real manifold. All irreducible *-representations are classified for a subclass of flag…

Quantum Algebra · Mathematics 2009-10-31 Jasper V. Stokman , Mathijs S. Dijkhuizen

A new class of integrable mappings and chains is introduced. Corresponding $(1+2)$ integrable systems invariant with respect to such discrete transformations are presented in an explicit form. Their soliton-type solutions are constructed in…

Mathematical Physics · Physics 2007-05-23 A. N. Leznov

The problem of classifying equivalence classes of presentations up to isomorphism of Cayley graphs is considered in this article in the case of dicyclic groups. The number of equivalence classes of presentations is uniformly bounded - it is…

Group Theory · Mathematics 2019-03-18 Peteris Daugulis

We provide a systematic treatment of the tenfold way of classifying fermionic systems that naturally allows for the study of those with arbitrary $N$-body interactions. We identify four types of symmetries that such systems can possess,…

Mesoscale and Nanoscale Physics · Physics 2017-10-25 Adhip Agarwala , Arijit Haldar , Vijay B. Shenoy

The fusion rules and braiding statistics of anyons in $(2+1)$D fermionic topological orders are characterized by the modular data of a super-modular category. On the other hand, the modular data of a super-modular category form a congruence…

Strongly Correlated Electrons · Physics 2023-11-03 Gil Young Cho , Hee-cheol Kim , Donghae Seo , Minyoung You

A general framework is presented for the renormalization of Hamiltonians via a similarity transformation. Divergences in the similarity flow equations may be handled with dimensional regularization in this approach, and the resulting…

High Energy Physics - Theory · Physics 2011-07-19 T. S. Walhout

This paper classifies the equivalence classes of irreducible unitary representations with nonvanishing Dirac cohomology for complex $E_6$. This is achieved by using our finiteness result, and by improving the computing method.

Representation Theory · Mathematics 2018-12-27 Chao-Ping Dong

We describe explicitly Lie superalgebra isomorphisms between the Lie superalgebras of first-order superdifferential operators on supermanifolds, showing in particular that any such isomorphism induces a diffeomorphism of the supermanifolds.…

Differential Geometry · Mathematics 2010-11-09 J. Grabowski , A. Kotov , N. Poncin

Three important issues are often encountered in Supervised and Semi-Supervised Classification: class-memberships are unreliable for some training units (label noise), a proportion of observations might depart from the main structure of the…

Applications · Statistics 2020-07-02 Andrea Cappozzo , Francesca Greselin , Thomas Brendan Murphy

We study connections between linear equations over various semigroups and recursively enumerable sets of positive integers. We give variants of the universal Diophantine representation of recursively enumerable sets of positive integers…

Formal Languages and Automata Theory · Computer Science 2024-06-04 Juha Honkala

This article begins the study of irreducible maps involving finite-dimensional uniserial modules over finite-dimensional associative algebras. We work on the classification of irreducible maps between two uniserials over triangular…

Representation Theory · Mathematics 2007-11-26 Axel Boldt , Ahmad Mojiri

In 1944 Dyson defined the rank of a partition as the largest part minus the number of parts, and conjectured that the residue of the rank mod 5 divides the partitions of 5n+4 into five equal classes. This gave a combinatorial explanation of…

Number Theory · Mathematics 2020-12-15 Frank Garvan

Linckelmann showed in 2011 that a group algebra is separably equivalent to the group algebra of its Sylow p-subgroups. In this article we use this relationship, together with Mackey decomposition, to demonstrate that a group algebra of a…

Representation Theory · Mathematics 2018-03-07 Simon F. Peacock

We give a geometric classification of complex $n$-dimensional $2$-step nilpotent (all, commutative and anticommutative) algebras. Namely, has been found the number of irreducible components and their dimensions. As a corollary, we have a…

Rings and Algebras · Mathematics 2021-11-02 Mikhail Ignatyev , Ivan Kaygorodov , Yury Popov

Drinfeld realisations are constructed for the quantum affine superalgebras of the series ${\rm\mathfrak{osp}}(1|2n)^{(1)}$,${\rm\mathfrak{sl}}(1|2n)^{(2)}$ and ${\rm\mathfrak{osp}}(2|2n)^{(2)}$. By using the realisations, we develop vertex…

Quantum Algebra · Mathematics 2018-02-28 Ying Xu , Ruibin Zhang