Results 41 to 50 of about 122,364 (286)

More About Discrete Gauge Anomalies

, 1992
I discuss and extend several results concerning the cancellation of discrete gauge anomalies. I show how heavy fermions do not decouple in the presence of discrete gauge anomalies.
Alford, Alford, Atick, Banks, Banks, Banks, Banks, Choi, Chun, Chung, D'Hooker, Dine, Dine, Dixon, Eguchi, Font, Glashow, Green, Ibáñez, Ibáñez, Ibáñez, Ibáñez, Kapetanakis, Krauss, Krauss, Krauss, Lazarides, Lerche, Luis E. Ibáñez, Preskill, Preskill, Preskill, Rey, van Nieuwenhuizen, White, Witten   +35 more
core   +2 more sources

Symmetries and classical quantization [PDF]

, 1997
A phenomenon of classical quantization is discussed. This is revealed in the class of pseudoclassical gauge systems with nonlinear nilpotent constraints containing some free parameters.
Barducci, Brink, Cortés, Cortés, D'Hoker, Deser, Deser, Dirac, Gershun, Gitman, Gitman, Gitman, Grignani, Grigoryan, Henty, Howe, Howe, Howe, Jackiw, Jackiw, Khazret S. Norov, Marnelius, Mikhail S. Plyushchay, Plyushchay, Plyushchay, Plyushchay, Plyushchay, Plyushchay, Plyushchay, Schonfeld, Siegel, Sundermeyer   +31 more
core   +2 more sources

Zero-form and one-form symmetries of the ABJ and related theories

Journal of High Energy Physics, 2022
The zero-form and one-form global symmetries of the Aharony-Bergman-Jafferis (ABJ) and related theories, with at least N $$ \mathcal{N} $$ = 6 supersymmetry in three dimensions, are examined in detail.
Emanuele Maduli, Noppadol Mekareeya, Matteo Sacchi   +2 more
doaj   +1 more source

Discrete symmetries in dynamo reversals [PDF]

Physics of Plasmas, 2017
Quantification of the velocity and magnetic field reversals in dynamo remains an interesting challenge. In this paper, using group-theoretic analysis, we classify the reversing and non-reversing Fourier modes during a dynamo reversal in a Cartesian box.
Riddhi Bandyopadhyay, Mahendra K. Verma
openaire   +3 more sources

Lie discrete symmetries of lattice equations

, 2003
We extend two of the methods previously introduced to find discrete symmetries of differential equations to the case of difference and differential-difference equations.
Decio Levi, Gaeta G, Gel'fand I M, Hernández Heredero R, Ince E L, Kelley M G, Levi D, Levi D, Levi D, Levi D, Levi D, Miguel A Rodríguez, Olver P J, Reid G J, Reid G J Boulton A Lisle I G, Toda M   +15 more
core   +1 more source

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Predictive neutrino mass textures with origin of flavor symmetries [PDF]

, 2018
We investigate origins of predictive one-zero neutrino mass textures in a systematic way. Here we search Abelian continuous(discrete) global symmetries, and non-Abelian discrete symmetries, and show how to realize these neutrino masses. Then we propose a
Kobayashi, Tatsuo, Nomura, Takaaki, Okada, Hiroshi   +2 more
core   +2 more sources

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Constraints on discrete global symmetries in quantum gravity

Journal of High Energy Physics, 2021
The question whether global symmetries can be realized in quantum-gravity-matter-systems has far-reaching phenomenological consequences. Here, we collect evidence that within an asymptotically safe context, discrete global symmetries of the form ℤ n , n >
Passant Ali, Astrid Eichhorn, Martin Pauly, Michael M. Scherer   +3 more
doaj   +1 more source