Results 51 to 60 of about 31,002 (199)

Surface defects and chiral algebras

Journal of High Energy Physics, 2017
We investigate superconformal surface defects in four-dimensional N = 2 $$ \mathcal{N}=2 $$ superconformal theories. Each such defect gives rise to a module of the associated chiral algebra and the surface defect Schur index is the character of this ...
Clay Córdova, Davide Gaiotto, Shu-Heng Shao   +2 more
doaj   +1 more source

Finite-N corrections to the M-brane indices

Journal of High Energy Physics, 2020
We investigate finite-N corrections to the superconformal indices of the theories realized on M2- and M5-branes. For three-dimensional theories realized on a stack of N M2-branes we calculate the finite-N corrections as the contribution of extended M5 ...
Reona Arai, Shota Fujiwara, Yosuke Imamura, Tatsuya Mori, Daisuke Yokoyama   +4 more
doaj   +1 more source

The ranks of central factor and commutator groups

, 2012
The Schur Theorem says that if $G$ is a group whose center $Z(G)$ has finite index $n$, then the order of the derived group $G'$ is finite and bounded by a number depending only on $n$. In the present paper we show that if $G$ is a finite group such that
Adian, Dixon, Kegel, LEONID A. KURDACHENKO, PAVEL SHUMYATSKY, Polovicky, Zelmanov   +6 more
core   +1 more source

Output‐Feedback H∞$$ {H}_{\infty } $$ Detector‐Based Control of Continuous‐Time Markov Jump Lur'e Systems With Sector‐Bound Optimization

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT This paper addresses the problem of dynamic output‐feedback H∞$$ {H}_{\infty } $$ detector‐based control for continuous‐time Markov Jump Lur'e Systems with uncertain transition rate matrices. In contrast to conventional approaches, the proposed synthesis conditions are derived using Finsler's lemma, introducing additional slack variables to ...
Lucas P. M. Silva, Cecilia F. Morais, Ricardo C. L. F. Oliveira   +2 more
wiley   +1 more source

Comments on class S(YK)

Journal of High Energy Physics
We present a DSSYK-like interpretation of the Schur half-indices of 𝒩 = 2 SU(2) gauge theories with matter, in the presence of fundamental Wilson lines.
Micha Berkooz, Trivko Kukolj, Josef Seitz   +2 more
doaj   +1 more source

Authentic specimens of Juncaceae names stored in the Herbarium of Ivan Franko National University of Lviv

Біологічні студії
Background. The Herbarium of Ivan Franko National University of Lviv (LW) is one of the oldest herbaria in Ukraine. It was established in 1783 by Prof. B. Schiwerek.
Ihor Olshanskyi, Lydia Tasenkevich, Maria Seniv   +2 more
doaj   +1 more source

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

International 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

Assessment of Genetic Diversity and Population Structure of the Endangered Astragalus exscapus subsp. transsilvanicus through DNA-Based Molecular Markers

Plants, 2021
Astragalus exscapus L. subsp. transsilvanicus (Schur) Nyár. (Fabaceae) is a rare plant endemic to the Transylvanian Plateau, represented by 24 identified populations.
Katalin Szabo, Doru Pamfil, Alexandru Sabin Bădărău, Monica Hârţa   +3 more
doaj   +1 more source

Kirchhoff Index As a Measure of Edge Centrality in Weighted Networks: Nearly Linear Time Algorithms

, 2018
Most previous work of centralities focuses on metrics of vertex importance and methods for identifying powerful vertices, while related work for edges is much lesser, especially for weighted networks, due to the computational challenge. In this paper, we
Li, Huan, Zhang, Zhongzhi
core   +1 more source

Frequency Shaping for Improving a Trade‐Off Between Control and Privacy Performance: Beyond Differential Privacy

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT In privacy protection of control systems, a trade‐off between control performance and privacy level is often pointed out. Our goal in this paper is to improve this trade‐off by shaping the frequency of noise added for privacy protection when the control objective is to track a reference signal, which is taken as a piece of information whose ...
Rintaro Watanabe, Yu Kawano, Nobutaka Wada, Ming Cao   +3 more
wiley   +1 more source