Results 271 to 280 of about 2,207,813 (322)

The geometry of the Gibbs measure of pure spherical spin glasses

, 2016
We analyze the statics for pure p-spin spherical spin glass models with $$p\ge 3$$p≥3, at low enough temperature. With $$F_{N,\beta }$$FN,β denoting the free energy, we compute the (logarithmic) second order term of $$ NF _{N,\beta }$$NFN,β and prove ...
Eliran Subag
semanticscholar   +1 more source

Axiomatic spherical geometry

Spherical Geometry and Its Applications, 2019
Marshall A. Whittlesey
openaire   +2 more sources

Stability and mix in spherical geometry

Physical Review Letters, 1990
Summary: We consider a spherical system composed of \(N\) concentric fluid shells having perturbations of amplitude at interface \(\eta_ i\), \( i=1, 2,\cdots , N-1\). For arbitrary implosion-explosion histories \(R_ i(t)\), we present the set of \(N-1\) second-order differential equations describing the time evolution of the \(\eta_ i\) which are ...
openaire   +2 more sources

Spherical Geometries

2023
Edzer Pebesma, Roger Bivand
openaire   +1 more source

Convection in Spherical Geometries

1985
Under well-defined conditions systems with many degrees of freedom like lasers, plasmas and fluids show irregular behaviour in their time evolution. These chaotic motions are usually produced by few degrees of freedom only and the basic question arises how to determine these relevant variables and to describe their dynamics.
R. Friedrich, H. Haken
openaire   +1 more source

A Pseudospectral Approach for Polar and Spherical Geometries

SIAM Journal on Scientific Computing, 1995
Summary: The singularities that arise in polar and spherical coordinates have in the past caused significant difficulties in obtaining accurate solutions to convection-diffusion-type problems in many fields (astrophysics, geophysics, meteorology, etc.). Viewing pseudospectral methods as a limiting case of finite difference methods (rather than as based
openaire   +1 more source

Exploiting the Earth's Spherical Geometry to Geolocate Images

ECML/PKDD, 2019
Michael Izbicki, E. Papalexakis, V. Tsotras   +2 more
semanticscholar   +1 more source

Modons in spherical geometry

Geophysical & Astrophysical Fluid Dynamics, 1984
Abstract The analytical form of equivalent modons in spherical geometry is derived along with the dispersion relationship relating the modon frequency, spatial extent and interior wavenumber. The structure of equivalent modons in spherical geometry is more asymmetric as the geographic pole is approached, thus giving improved kinematic agreement with ...
openaire   +1 more source

Dynamo Problems in Spherical and Nearly Spherical Geometries

2001
Hybrid vector spherical harmonic / poloidal-toroidal spherical spectral forms of the linearised magnetohydroynamic equations are described. The equations are highly structured with relatively few terms and form the basis of computer codes, which implement a wide range of dynamo problems in spherical and nearly spherical geometries.
D. J. Ivers, C. G. Phillips
openaire   +1 more source

Spherical geometry and spherical tilings with GeoGebra

2019
published
Breda, Ana, Santos, José Manuel dos
openaire   +1 more source