Results 51 to 60 of about 1,073,400 (288)

The Double Cover of the Icosahedral Symmetry Group and Quark Mass Textures

, 2011
We investigate the idea that the double cover of the rotational icosahedral symmetry group is the family symmetry group in the quark sector. The icosahedral (A5) group was previously proposed as a viable family symmetry group for the leptons.
Abe, Adulpravitchai, Adulpravitchai, Ahmed, Ahmed, Ahn, Ahn, Albright, Alexander J. Stuart, Altarelli, Altarelli, Altarelli, Altarelli, Altarelli, Altarelli, Altarelli, Altarelli, Altarelli, Apollonio, Aranda, Aranda, Aranda, Aranda, Aranda, Babu, Babu, Babu, Backhouse, Bahcall, Bahcall, Bahcall, Bahcall, Barbieri, Barbieri, Barbieri, Barbieri, Barbieri, Bazzocchi, Berezhiani, Berezhiani, Berezhiani, Berezhiani, Berezhiani, Berger, Blazek, Blum, Blum, Blum, Cai, Caravaglios, Carone, Carone, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Chen, Ciafaloni, Clevel, Cooper, Coxeter, Cummins, Daikoku, Daikoku, Datta, Davis, Davis, de Adelhart Toorop, de Medeiros Varzielas, Dicus, Ding, Ding, Eguchi, Escobar, Everett, Eyal, Feruglio, Feruglio, Feruglio, Feruglio, Feruglio, Feruglio, Feruglio, Feruglio, Frampton, Frampton, Frampton, Frampton, Frampton, Frampton, Frigerio, Frigerio, Frigerio, Froggatt, Fukuda, Fukuda, Fukuda, Fukuda, Gopalakrishna, Gopalakrishna, Goto, Grimus, Grimus, Grimus, Haba, Haba, Hagedorn, Hagedorn, Hagedorn, Hagedorn, Hagedorn, Hagedorn, Hall, Hamermesh, Hampel, Han, Harrison, Harrison, Honda, Hoyle, Inoue, Ishimori, Ishimori, Ishimori, Kadosh, Kajita, Kajita, Kajiyama, Kajiyama, King, King, King, King, Ko, Ko, Kobashi, Kobayashi, Koide, Koide, Koide, Kubo, Kubo, Lisa L. Everett, Lomont, Ludl, Ludl, Luhn, Luhn, Luhn, Luhn, Ma, Ma, Ma, Ma, Ma, Ma, Ma, Ma, Ma, Ma, Maki, Merlo, Mitra, Mohapatra, Mohapatra, Mondragon, Morisi, Morisi, Pontecorvo, Ramond, Romanino, Sakharov, Schwetz, Sen, Shirai, Strumia, Tanimoto, Zee, Zhang, Zralek, Zwicky   +184 more
core   +1 more source

Symmetry Transformations of a Nonlinear Model of Optical Wave Transmission

Axioms
The full symmetry group is found for a system of nonlinear schrödinger equations describing the propagation of optical pulses in an isotropic media.
Jean-Claude Ndogmo, Emmanuel Mayombo Mbala, Mensah Kekeli Folly-Gbetoula   +2 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Spin-Hall effect with quantum group symmetry

, 2006
We construct a model of spin-Hall effect on a noncommutative 4 sphere with isospin degrees of freedom (coming from a noncommutative instanton) and invariance under a quantum orthogonal group.
A. Belavin, A. Connes, A. Connes, A. Connes, A. Sitarz, B.A. Bernevig, C.N. Yang, C.N. Yang, D. Karabali, F.D. Haldane, G. Landi, G. Meng, Giovanni Landi, J. Bellissard, J.C. Várilly, K. Hasebe, M. Fabinger, R.B. Laughlin, V. Chari, Y.K. Kato   +19 more
core   +3 more sources

Symmetry in Signals: A New Insight

Entropy
Symmetry is a fundamental property of many natural systems, which is observable through signals. In most out-of-equilibrium complex dynamic systems, the observed signals are asymmetric. However, for certain operating modes, some systems have demonstrated
Jean-Marc Girault
doaj   +1 more source

Constraints on 3- and 4-loop β-functions in a general four-dimensional Quantum Field Theory

Journal of High Energy Physics, 2019
The β-functions of marginal couplings are known to be closely related to the A-function through Osborn’s equation, derived using the local renormalization group. It is possible to derive strong constraints on the β-functions by parametrizing the terms in
Colin Poole, Anders Eller Thomsen
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

$\sigma$-models on the quantum group manifolds $SL_{q}(2,R)$, $SL_{q}(2,R)/U_{h}(1)$, $C_{q}(2|0)$ and infinitesimal trasformations

, 1997
The differential and variational calculus on the $SL_{q}(2,R)$ group is constructed. The spontaneous breaking symmetry in the WZNW model with $SL_{q}(2,R)$ quantum group symmetry and in the $\sigma$-models with ${SL_{q}(2,R)/U_{h}(1)}$ ,$C_{q}(2|0 ...
A. Alekseev, I.Y. Arefeva, L. Faddeev, L.D. Fadeev, V.D. Gershun, V.P. Akulov, V.P. Akulov, V.P. Akulov, Y. Frishman   +8 more
core   +1 more source

Symmetry and group theory throughout physics

EPJ Web of Conferences, 2012
As noticed in 1884 by Pierre Curie [1], physical properties of matter are tightly related to the kind of symmetry of the medium. Group theory is a systematic tool, though not always easy to handle, to exploit symmetry properties, for instance to find the
Villain J.
doaj   +1 more source

Symmetry groups of boolean functions

European Journal of Combinatorics, 2014
We prove that every abelian permutation group, but known exceptions, is the symmetry group of a boolean function. This solves the problem posed in the book by Clote and Kranakis. In fact, our result is proved for a larger class of groups, namely, for all groups contained in direct sums of regular groups.
Grech, Mariusz, Kisielewicz, Andrzej
openaire   +3 more sources