Results 31 to 40 of about 18,450 (294)

Monomial valuations, cusp singularities, and continued fractions [PDF]

open access: bronzeJournal of Commutative Algebra, 2015
20 pages, Corrected Author ...
David J. Bruce   +2 more
openalex   +5 more sources

The Zeldovich approximation: key to understanding Cosmic Web complexity [PDF]

open access: yes, 2013
We describe how the dynamics of cosmic structure formation defines the intricate geometric structure of the spine of the cosmic web. The Zeldovich approximation is used to model the backbone of the cosmic web in terms of its singularity structure.
Hidding, Johan   +2 more
core   +8 more sources

Calorimetry of a Bose–Einstein-condensed photon gas

open access: yesNature Communications, 2016
Phase transitions are often revealed by a discontinuous behaviour of thermodynamic quantities. Here, the authors study the thermodynamic behaviour of a trapped 2D photon gas, revealing critical behaviour at the phase transition through a cusp singularity
Tobias Damm   +6 more
doaj   +1 more source

Infrared singularities in QCD amplitudes [PDF]

open access: yes, 2009
We review recent progress in determining the infrared singularity structure of on-shell scattering amplitudes in massless gauge theories. We present a simple ansatz where soft singularities of any scattering amplitude of massless partons, to any loop ...
Gardi, Einan, Magnea, Lorenzo
core   +2 more sources

A Moonshine Dialogue in Mathematical Physics

open access: yesMathematics, 2015
Phys and Math are two colleagues at the University of Saçenbon (Crefan Kingdom), dialoguing about the remarkable efficiency of mathematics for physics. They talk about the notches on the Ishango bone and the various uses of psi in maths and physics; they
Michel Planat
doaj   +1 more source

Normal Forms for Symplectic Maps with Twist Singularities [PDF]

open access: yes, 2005
We derive a normal form for a near-integrable, four-dimensional symplectic map with a fold or cusp singularity in its frequency mapping. The normal form is obtained for when the frequency is near a resonance and the mapping is approximately given by the ...
A.V. Ivanov   +22 more
core   +3 more sources

Classification of phase singularities for complex scalar waves [PDF]

open access: yes, 2006
Motivated by the importance and universal character of phase singularities which are clarified recently, we study the local structure of equi-phase loci near the dislocation locus of complex valued planar and spatial waves, from the viewpoint of ...
Adachi, Jiro, Ishikawa, Go-o
core   +2 more sources

The topology associated with cusp singular points

open access: yesNonlinearity, 2012
In this paper we investigate the global geometry associated with cusp singular points of two-degree of freedom completely integrable systems. It typically happens that such singular points appear in couples, connected by a curve of hyperbolic singular points.
Konstantinos, Efstathiou   +1 more
openaire   +4 more sources

Inelastic x-ray scattering reveals the ergodic to nonergodic transition of salol, a liquid with local order

open access: yesCondensed Matter Physics, 2019
We have studied the high-frequency dynamics of salol by inelastic x-ray scattering over a wide temperature range between 50 and 450 K, across the glass transition. We find that salol efficiently realizes the mechanism of dynamical arrest described by the
L. Comez   +5 more
doaj   +1 more source

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