Results 21 to 30 of about 10,042,261 (306)
Symmetry groupoids and admissible vector fields for coupled cell networks [PDF]
The space of admissible vector fields, consistent with the structure of a network of coupled dynamical systems, can be specified in terms of the network's symmetry groupoid.
Dias, Ana Paula S., Stewart, Ian
core +1 more source
Calculating the symmetry of hexamethylcyclohexane
An Euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix. Balasubramanian (1995) computed the Euclidean graphs and their automorphism groups for benzene, eclipsed and staggered forms of ethane, and eclipsed and ...
Ahmad Gholami +2 more
doaj +1 more source
Symmetry groups of boolean functions
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.
Mariusz Grech, Andrzej Kisielewicz 0001
openaire +4 more sources
Automated static symmetry breaking in constraint satisfaction problems [PDF]
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
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A double chain of coupled circuits in analogy with mechanical lattices
A unitary transformation obtained from group theoretical considerations is applied to the problem of finding the resonant frequencies of a system of coupled LC-circuits.
J. N. Boyd, P. N. Raychowdhury
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Topological axion electrodynamics and 4-group symmetry
We study higher-form symmetries and a higher group in the low energy limit of a (3+1)-dimensional axion electrodynamics with a massive axion and a massive photon.
Yoshimasa Hidaka +2 more
doaj +1 more source
Symmetry sensitivities of Derivative-of-Gaussian filters [PDF]
We consider the measurement of image structure using linear filters, in particular derivative-of-Gaussian (DtG) filters, which are an important model of V1 simple cells and widely used in computer vision, and whether such measurements can determine local
Griffin, LD +3 more
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The classification of corank one forced symmetry breaking [PDF]
Forced-symmetry breaking occurs when a bifurcation equation changes its symmetry when a parameter varies. It is to be contrasted with the phenomena of spontaneous symmetry breaking when the symmetry of the equations are kept constant but the symmetry of
Sitta, AM, Furter, JE
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Non-expanding horizons: multipoles and the symmetry group
It is well-known that blackhole and cosmological horizons in equilibrium situations are well-modeled by non expanding horizons (NEHs) [1–3]. In the first part of the paper we introduce multipole moments to characterize their geometry, removing the ...
Abhay Ashtekar +3 more
doaj +1 more source
Gauging Lie group symmetry in (2+1)d topological phases
We present a general algebraic framework for gauging a 0-form compact, connected Lie group symmetry in (2+1)d topological phases. Starting from a symmetry fractionalization pattern of the Lie group $G$, we first extend $G$ to a larger symmetry group ...
Meng Cheng, Po-Shen Hsin, Chao-Ming Jian
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