Filters








136,544 Hits in 5.0 sec

On local domain symmetry for model expansion

JO DEVRIENDT, BART BOGAERTS, MAURICE BRUYNOOGHE, MARC DENECKER
2016 Theory and Practice of Logic Programming  
detection algorithms for both local domain interchangeability as well as local domain symmetry in general.  ...  Our main contributions are sufficient conditions for symmetry of model expansion problems, the identification oflocal domain interchangeability, which can often be broken completely, and efficient symmetry  ...  Conclusion We presented the notion of local domain symmetry for model expansion problems, which manifests itself on the first-order level.  ... 
doi:10.1017/s1471068416000508 fatcat:q33spjeaxvdjxayjsu5sfhvnvi

4 — d expansion for Anderson localization in a strong spin-orbit coupling case

S. Hikami
1985 Journal de Physique Lettres  
Abstract. 2014 The problem of Anderson localization in a strong spin-orbit coupling case is studied by using a gauge invariant matrix model in 03B5 = 4 2014 d expansion.  ...  An expression for the critical exponent of conductivity is obtained in the first order of the 03B5-expansion. Tome 46 ? 16 15 AOUT 1985  ...  The author thanks Edouard Brezin warmly for useful discussions. He acknowledges the support of Yoshida Science Foundation and the hospitality of the Theoretical Physics Division at Saclay.  ... 
doi:10.1051/jphyslet:019850046016071900 fatcat:b3r3fcjagbeurbiez273mvou4e

Variations on Birkhoff's theorem

George F. R. Ellis, Rituparno Goswami
2013 General Relativity and Gravitation  
The relation between the expanding universe and local vacuum solutions, such as that for the Solar System, is crucially mediated by Birkhoff's theorem.  ...  Acknowledgements: We thank Chris Clarkson for helpful comments, and the NRF and UCT Research Committee for financial support.  ...  Overall these models do not show how local static domains fit together to give expansion, because they rely on an all-pervading cosmic fluid model for their dynamics, and that fluid everywhere embodies  ... 
doi:10.1007/s10714-013-1568-z fatcat:qstqersl55chrihsfnkhi4axqi

The PAR network: redundancy and robustness in a symmetry-breaking system

F. Motegi, G. Seydoux
2013 Philosophical Transactions of the Royal Society of London. Biological Sciences  
Expansion of the PAR-2 domain requires the RING domain of PAR-2: a PAR-2 RING mutant localizes to the centrosome, but cannot spread to the cortex beyond [20, 21] .  ...  The models based on mutual exclusion require that aPAR and pPAR levels be balanced to prevent runaway expansion rstb.royalsocietypublishing.org Phil Trans R Soc B 368: 20130010 of the pPAR domain and maintain  ... 
doi:10.1098/rstb.2013.0010 pmid:24062581 pmcid:PMC3785961 fatcat:af44fyq7avfxdbf7irbvsut6i4

Cosmological Role of Weak Currents and a Quasar Model

N. Hokkyo
1976 Progress of theoretical physics  
A model of the closed universe with a spontaneously broken symmetry is considered.  ...  CP-noninvariant vacuum domains builds up at the saddle point of the gravitational potential in early stages of the cosmological expansion.  ...  At low temperatures the system is m one of these local energy minima so that ( cp) A v=fO (spontaneous symmetry breaking).  ... 
doi:10.1143/ptp.56.561 fatcat:hapjbiq3cba2rewjbssstj5twa

Suppression and restoration of disorder-induced light localization mediated by PT-symmetry breaking [article]

Yaroslav V. Kartashov, Chao Hang, Vladimir V. Konotop, Victor A. Vysloukh, Guoxiang Huang, Lluis Torner
2015 arXiv   pre-print
We uncover that the breaking point of the PT-symmetry in optical waveguide arrays has a dramatic impact on light localization induced by the off-diagonal disorder.  ...  Beyond the symmetry-breaking point localization is gradually restored, although in this regime the power of localized modes grows upon propagation.  ...  Beyond the symmetry breaking point, c acquires a large imaginary part that decreases when one goes deeper into the domain with broken symmetry.  ... 
arXiv:1512.02531v1 fatcat:lj457326vfdwzou7dw5pdtuwde

Influences of Domain Symmetry on Supersonic Combustion Modeling

Wei Yao, Kun Wu, Xuejun Fan
2019 Journal of Propulsion and Power  
High-fidelity Improved Delayed Detached Eddy Simulation modeling is applied to examine the influence of the symmetry plane on the supersonic flow and combustion characteristics in a round-to-elliptic-transition  ...  A quarterly split domain and the full domain are modeled by using up to 0.14 billion cells and a third-order scale-selective discretization scheme.  ...  As shown in Fig. 2a , a uniform mesh is applied to the whole domain and then adaptively refined based on local curvatures and size functions. The uniform cell size is 0.65 mm for the quarter domain.  ... 
doi:10.2514/1.b37227 fatcat:xkcbjbhrebhrnaa3u6mwsnr5fi

Evaluation of electronic correlation contributions for optical tensors of large systems using the incremental scheme

Jun Yang, Michael Dolg
2007 Journal of Chemical Physics  
The weight factor matrices for one-and two-body increments of linear polarizabilities are formulated for the model system Ga 4 As 4 H 18 with C 3v point group symmetry.  ...  In order to demonstrate how the convergence of incremental expansions depends on the local domains, we have defined three different local domain spaces, i.e., the domain space A for five local domains ͑  ...  Friedrich for generously providing us the Cϩϩ code for evaluating the increments.  ... 
doi:10.1063/1.2759201 pmid:17764230 fatcat:tpkxzunjl5batf5j7pw6rfqkg4

Liquid-crystalline blue phase III and structures of broken icosahedral symmetry

Lech Longa, Werner Fink, Hans-Rainer Trebin
1993 Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics  
We take all icosahedral space-group symmetries of the reciprocal space for BP Ill and study their thermodynamic stability within the frame of an extended de Gennes-Ginzburg-Landau free-energy expansion  ...  Experiments conducted on a large variety of materials prove that BPI and BPII have body-centered-cubic structure with a space-group symmetry of 0 8 (!  ...  By definition, Q(r) vanishes for locally disordered, S0(3)symmetric configurations and becomes nonzero if the local orientational order is characterized by Doo or D2 symmetries.  ... 
doi:10.1103/physreve.48.2296 pmid:9960851 fatcat:zqhf2dzic5g5npx3snvmt5mibm

Page 7334 of Mathematical Reviews Vol. , Issue 94m [page]

1994 Mathematical Reviews  
of domains of analyticity for some perturbative expansions of mechanics.  ...  The authors examine in detail the domain of analyticity of pertur- bative expansions for invariant circles. They consider mechanical models which are not conservative.  ... 

Effective field theory of electron motion in the presence of random magnetic flux

Shou-Cheng Zhang, Daniel P. Arovas
1994 Physical Review Letters  
from the localized phase to a phase with power law correlations and continuously varying conductances.  ...  We provide a physical interpretation of our results in terms of the scattering of edge states of the magnetic domains in different regions.  ...  In this case, one has to reorganize the cumulant expansion into an expansion inσ II xy − σ II xy .  ... 
doi:10.1103/physrevlett.72.1886 pmid:10055729 fatcat:m243dd4abncgpgii4izx5urnti

Representation of Photonic Crystals and Their Localized Modes Through the Use of Fourier–Bessel Expansions

S. R. Newman, G. C. Gauthier
2011 IEEE Photonics Journal  
However, it can be treated based on the rotationally symmetry through the use of Fourier-Bessel expansions about the center of rotation.  ...  Fourier-Bessel expansions of the inverse dielectric of the structures and the transverse electric (TE) localized modes extract the rotational symmetry that is present.  ...  Acknowledgment The authors wish to thank the anonymous reviewers for their valuable suggestions.  ... 
doi:10.1109/jphot.2011.2175909 fatcat:bcg4yvi5czenvjzryitqrpqm2y

Possibility of formation of a disoriented chiral condensate inppcollisions at energies available at the CERN Large Hadron Collider via the reaction-diffusion equation

Partha Bagchi, Arpan Das, Srikumar Sengupta, Ajit M. Srivastava
2016 Physical Review C  
Due to rapid 3-dimensional expansion, the system will quickly cool undergoing spontaneous chiral symmetry breaking transition.  ...  We study the dynamics of chiral field, after the symmetry breaking transition, for such an event using reaction-diffusion equation approach which we have recently applied for studying QCD transitions in  ...  Dave for useful discussions.  ... 
doi:10.1103/physrevc.93.024914 fatcat:4vds5rs5cvbnxfjxszke7apcga

Adaptive fast multipole boundary element method for three-dimensional half-space acoustic wave problems

M.S. Bapat, L. Shen, Y.J. Liu
2009 Engineering analysis with boundary elements  
An improved adaptive fast multipole BEM is presented for the half-space acoustic wave problems, based on the one developed recently for the full-space problems.  ...  The largest BEM model with 557470 elements was solved in about an hour on a desktop PC.  ...  Bo Bi for creating the CAD model of the windmill used in this study.  ... 
doi:10.1016/j.enganabound.2009.04.005 fatcat:zyxjxczfevg65o4nxdh2e2txw4

Page 7549 of Mathematical Reviews Vol. , Issue 2001J [page]

2001 Mathematical Reviews  
gauge symmetry basis for the field equations in d + 2 dimensions.  ...  We discuss conditions on the scalar potential such that domain wall solutions are non-singular.  ... 
« Previous Showing results 1 — 15 out of 136,544 results