Results 61 to 70 of about 297,060 (285)

Little strings, quasi-topological sigma model on loop group, and toroidal Lie algebras

open access: yesNuclear Physics B, 2018
We study the ground states and left-excited states of the Ak−1 N=(2,0) little string theory. Via a theorem by Atiyah [1], these sectors can be captured by a supersymmetric nonlinear sigma model on CP1 with target space the based loop group of SU(k).
Meer Ashwinkumar   +4 more
doaj   +1 more source

A Sharper Ramsey Theorem for Constrained Drawings

open access: yesJournal of Graph Theory, EarlyView.
ABSTRACT Given a graph G $G$ and a collection C ${\mathscr{C}}$ of subsets of Rd ${{\mathbb{R}}}^{d}$ indexed by the subsets of vertices of G $G$, a constrained drawing of G $G$ is a drawing where each edge is drawn inside some set from C ${\mathscr{C}}$, in such a way that nonadjacent edges are drawn in sets with disjoint indices.
Pavel Paták
wiley   +1 more source

Poisson-Lie T-duality of WZW model via current algebra deformation

open access: yesJournal of High Energy Physics, 2020
Poisson-Lie T-duality of the Wess-Zumino-Witten (WZW) model having the group manifold of SU(2) as target space is investigated. The whole construction relies on the deformation of the affine current algebra of the model, the semi-direct sum su 2 ℝ ⊕ ⋅ a $
Francesco Bascone   +2 more
doaj   +1 more source

The Serial Effects of Callous‐Unemotional Traits and Gray Matter Density in the Right Dorsomedial Prefrontal Cortex on Social Desirability

open access: yesPsyCh Journal, EarlyView.
ABSTRACT Social desirability affects several aspects of human life. However, the neuropsychological mechanisms underlying individual differences in social desirability remain unclear. This study explored the neuroanatomical basis of individual differences in social desirability using regional gray matter density (rGMD) as a brain indicator in a sample ...
Rui Li, Ling‐Xiang Xia
wiley   +1 more source

Braided Tensor Categories of Admissible Modules for Affine Lie Algebras [PDF]

open access: yesCommunications in Mathematical Physics, 2017
Using the tensor category theory developed by Lepowsky, Zhang and the second author, we construct a braided tensor category structure with a twist on a semisimple category of modules for an affine Lie algebra at an admissible level.
T. Creutzig, Yi-Zhi Huang, Jinwei Yang
semanticscholar   +1 more source

Schur Functions and Affine Lie Algebras

open access: yesJournal of Algebra, 1998
AbstractWe make use of the representation theory of the infinite-dimensional Lie algebrasa∞,b∞, and [formula] to derive explicit formulas relating Schur'sP-functions to Schur'sS-functions.
Séverine Leidwanger, Bernard Leclerc
openaire   +2 more sources

From phase space to integrable representations and level-rank duality

open access: yesJournal of High Energy Physics, 2018
We explicitly find representations for different large N phases of Chern-Simons matter theory on S 2 × S 1. These representations are characterised by Young diagrams.
Arghya Chattopadhyay   +2 more
doaj   +1 more source

Smooth affine group schemes over the dual numbers [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2019
We provide an equivalence between the category of affine, smooth group schemes over the ring of generalized dual numbers $k[I]$, and the category of extensions of the form $1 \to \text{Lie}(G, I) \to E \to G \to 1$ where G is an affine, smooth group ...
Matthieu ROMAGNY, Dajano Tossici
doaj   +1 more source

The role of identification in data‐driven policy iteration: A system theoretic study

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

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