Now showing items 41-50 of 2095
Ionization and Scattering for Short-Lived Potentials
(Kluwer Academic Publishers; Springer Science+Business Media, 1999-06)
We consider perturbations of a model quantum system consisting of a single bound state and continuum radiation modes. In many problems involving the interaction of matter and radiation, one is interested in the effect of ...
A quadratic form on the quotient of a periodic map
(Springer-Verlag; Springer-Verlag New York Inc., 1974-03)
Modification of Stokes' law for a heated sphere in liquid helium II
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1971-07)
It is shown that the counterflow which occurs at low heat inputs in liquid helium below the λ point modifies the wake behind a steadily moving sphere. The result is valid for a low Reynolds number and limits on the range ...
A Van Kampen theorem for [pi]2
(Elsevier, 1978-02)
If the path connected topological space X has a countable open cover with path connected elements, then [pi]2(X,*) is computed as a colimit determined by the second homotopy groups of the intersection of elements of and ...
Construction of fully symmetric numerical integration formulas of fully symmetric numerical integration formulas
(Springer-Verlag, 1967-11)
The paper develops a construction for finding fully symmetric integration formulas of arbitrary degree 2 k + 1 in n -space such that the number of evaluation points is O ((2 n ) k )/ k !), n → ∞. Formulas of degrees 3, 5, ...
An Adaptively Refined Cartesian Mesh Solver for the Euler Equations
(Elsevier, 1993-01)
A method for adaptive refinement of a Cartesian mesh for the solution of the steady Euler equations is presented. The algorithm creates an initial uniform mesh and cuts the body out of that mesh. The mesh is then refined ...
A Spectral Element Basin Model for the Shallow Water Equations
(Elsevier, 1993-11)
A spectral element model is built for the shallow water equations in complex geometry. It is proved to be an efficient computational model in solving oceanic problems. In particular, the equatorial Rossby modon's reflection ...
An integral method for mixing, chemical reactions, and extinction in unsteady strained diffusion layers
(Elsevier, 1991-02)
An integral method is presented for determining the evolution of molecular mixing, finite rate chemical reactions, and local extinction in diffusion layers under the effect of an unsteady strain rate. The partial differential ...