Results 41 to 50 of about 4,995,991 (287)

A particle model with extra dimensions from coadjoint Poincaré symmetry

open access: yesJournal of High Energy Physics, 2020
Starting from the coadjoint Poincaré algebra we construct a point particle relativistic model with an interpretation in terms of extra-dimensional variables.
Andrea Barducci   +2 more
doaj   +1 more source

The classification of bifurcations with hidden symmetries [PDF]

open access: yes, 2000
We set up a singularity-theoretic framework for classifying one-parameter steady-state bifurcations with hidden symmetries. This framework also permits a non-trivial linearization at the bifurcation point.
Manoel, Míriam, Stewart, Ian
core   +1 more source

Non-invertible Gauss law and axions

open access: yesJournal of High Energy Physics, 2023
In axion-Maxwell theory at the minimal axion-photon coupling, we find non-invertible 0- and 1-form global symmetries arising from the naive shift and center symmetries.
Yichul Choi, Ho Tat Lam, Shu-Heng Shao
doaj   +1 more source

Simple applications of Noether's first theorem in quantum mechanics and electromagnetism [PDF]

open access: yes, 2003
Internal global symmetries exist for the free non-relativistic Schrodinger particle, whose associated Noether charges---the space integrals of the wavefunction and the wavefunction multiplied by the spatial coordinate---are exhibited.
Holland, Peter   +3 more
core   +1 more source

2-group global symmetries, hydrodynamics and holography [PDF]

open access: yes, 2023
2-group global symmetries are a particular example of how higher-form and conventional global symmetries can fuse together into a larger structure. We construct a theory of hydrodynamics describing the finite-temperature realization of a 2-group global ...
Iqbal, Nabil   +4 more
core   +2 more sources

Empirical consequences of symmetries [PDF]

open access: yes, 2011
It is widely recognised that 'global' symmetries, such as the boost invariance of classical mechanics and special relativity, can give rise to direct empirical counterparts such as the Galileo-ship phenomenon.
Wallace, David, Greaves, Hilary
core  

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Automated static symmetry breaking in constraint satisfaction problems [PDF]

open access: yes, 2011
Variable symmetries in constraint satisfaction problems can be broken by adding lexicographic ordering constraints. Existing general methods of generating such sets of ordering constraints can produce a huge number of additional constraints. This adds
Grayland, Andrews
core   +2 more sources

Type II duality symmetries in six dimensions [PDF]

open access: yes, 1996
We discuss the different discrete duality symmetries in six dimensions that act within and between (i) the 10-dimensional heterotic string compactified on T^4, (ii) the 10-dimensional type IIA string compactified on K3 and (iii) the 10-dimensional type ...
Bergshoeff, E.,   +5 more
core   +2 more sources

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