Now showing items 41-50 of 357
Potential and scattering theory on wildly perturbed domains
(Elsevier, 1975-01)
We study the potential, scattering, and spectral theory associated with boundary value problems for the Laplacian on domains which are perturbed in very irregular fashions. Of particular interest are problems in which a ...
Upper bound on the free energy of the spin 1/2 Heisenberg ferromagnet
(Kluwer Academic Publishers; Springer Science+Business Media, 1991-11)
The authors obtain an upper bound on the free energy of the spin 1/2 Heisenberg ferromagnet. The zero field bound is, at low temperature, similar to the formula given by the magnon approximation. That is, its functional ...
Well-posedness and self-similar asymptotics for a thin-film equation
(Society for Industrial and Applied Mathematics, 2015-07-30)
We investigate compactly supported solutions for a thin-film equation with linear mobility in the regime of perfect wetting. This problem has already been addressed by Carrillo and Toscani, proving that the source-type ...
Nonlinear superposition and absorption of delta waves in one space dimension
(Elsevier, 1987-07)
A Markov chain on the symmetric group and Jack symmetric functions
(Elsevier, 1992-04-02)
Diaconis and Shahshahani studied a Markov chain W[function of (italic small f)](1) whose states are the elements of the symmetric group S[function of (italic small f)]. In W[function of (italic small f)](1), you move from ...
A phase cell cluster expansion for Euclidean field theories
(Elsevier, 1982-08)
We adapt the cluster expansion first used to treat infrared problems for lattice models (a mass zero cluster expansion) to the usual field theory situation. The field is expanded in terms of special block spin functions ...