Search Results - subject:"Spherical model"

A novel fusion Support Vector Machine integrating weak and sphere models for classification challenges with massive data

Pimentel, Jonatha Sousa; Ospina, Raydonal; Ara, Anderson - 2024

The unprecedented growth in data generation has necessitated the adoption of advanced analytical techniques. Support Vector Machine (SVM) is a powerful machine learning tool that has proven invaluable in classifying observations through optimal hyperplane in higher dimensions. Despite their...

Persistent link: https://www.econbiz.de/10015101975

Evaluation of the dimensions of the spherical model of vocational interests in the long and short version of the Personal Globe Inventory

Etzel, Julian M.; Nagy, Gabriel - In: Journal of vocational behavior 112 (2019), pp. 1-16

Persistent link: https://www.econbiz.de/10012060070

Quantum spherical model with competing interactions

Bienzobaz, P.F.; Salinas, S.R. - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 24, pp. 6399-6408

We analyse the phase diagram of a quantum mean spherical model in terms of the temperature T, a quantum parameter g …

Persistent link: https://www.econbiz.de/10011058040

Critical aging properties of the two-dimensional spherical model with the long-range interaction r−3

Chen, Yuan; Liang, Hong-Dong - In: Physica A: Statistical Mechanics and its Applications 391 (2012) 20, pp. 4661-4674

In this work we investigate critical aging properties of the two-dimensional spherical model with the long …

Persistent link: https://www.econbiz.de/10011058245

Phase transitions of the energy-relative enstrophy theory for a coupled barotropic fluid–rotating sphere system

Ding, Xueru; Lim, Chjan C. - In: Physica A: Statistical Mechanics and its Applications 374 (2007) 1, pp. 152-164

-relative enstrophy spherical model in a wide range of parameter space by Monte Carlo (MC) methods [J.M. Hammersley, D.C. Handscomb, Monte …

Persistent link: https://www.econbiz.de/10010588937

Topological approach to phase transitions and inequivalence of statistical ensembles

Kastner, Michael - In: Physica A: Statistical Mechanics and its Applications 359 (2006) C, pp. 447-454

discussed for systems in which equivalence of statistical ensembles does not hold. As an example, the spherical model with mean …

Persistent link: https://www.econbiz.de/10010590681

Some remarks on p-spin interaction models in a random field

Haddad, T.A.S.; Vieira, A.P.; Salinas, S.R. - In: Physica A: Statistical Mechanics and its Applications 342 (2004) 1, pp. 76-82

We present some calculations for the thermodynamic behavior of mean-field ferromagnetic p-spin interaction models in the presence of quenched random fields. For both Ising and spherical spin variables, we use the law of large numbers, without recourse to the replica trick, to obtain a...

Persistent link: https://www.econbiz.de/10011057854

Gene Stanley, the n-vector model and random walks with absorbing boundaries

Batchelor, M.T.; Henry, B.I. - In: Physica A: Statistical Mechanics and its Applications 314 (2002) 1, pp. 77-82

Gene Stanley's early contribution to the n-vector model is briefly reviewed. Also discussed is a problem solved by McCrea and Whipple in 1940; namely random walks with absorbing boundaries. We have found the exact solution of the analogous problem on the triangular lattice with a true finite...

Persistent link: https://www.econbiz.de/10010590524

Further results on the critical behaviour of the mean spherical model: layer and local susceptibilities

Amin, Magdy E.; Hedar, M.R.; El-Wahab, N.H. Abd - In: Physica A: Statistical Mechanics and its Applications 305 (2002) 3, pp. 574-584

The critical behaviour of some properties of the ferromagnetic mean spherical model with a film geometry L×∞2 and the …

Persistent link: https://www.econbiz.de/10011058223

Exact solutions of an energy-enstrophy theory for the barotropic vorticity equation on a rotating sphere

Lim, Chjan C. - In: Physica A: Statistical Mechanics and its Applications 290 (2001) 1, pp. 131-158

-squared absolute vorticity) are conserved, a long-range version of Kac's spherical model with logarithmic interaction is derived and … Kac's spherical constraint. Two new features of this spherical model are (i) it allows negative temperatures, and (ii) a … be formulated. This spherical model is shown to have a free energy that is analytic in the properly scaled inverse …

Persistent link: https://www.econbiz.de/10011057116