Now showing items 21-30 of 722
Some remarks on Vinogradov's mean value theorem and Tarry's problem
(Springer-Verlag, 1996-09)
Let W(k, 2) denote the, least number s for which the system of equations has a solution with . We show that for large k one has W(k, 2)≦1/2k 2 (log k +loglog k + O (1)), and moreover that when K is large, one has W(k, ...
On performing experimental studies on transient states of continuous-flow methanogenic reactors
(Wiley Subscription Services, Inc., A Wiley Company, 1990-03-25)
One approach to exploring the behavior of microbial cultures during transient conditions of unbalanced growth is to experimentally observe continuous-flow biological reactors which have been subjected to perturbations in ...
Stratified least fixpoint logic
(Elsevier, 1994-08-29)
Stratified least fixpoint logic, or SLFP, characterizes the expressibility of stratified logic programs and, in a different formulation, has been used as a logic of imperative programs. These two formulations of SLFP are ...
Perfect Matchings of Cellular Graphs
(Kluwer Academic Publishers-Plenum Publishers; Kluwer Academic Publishers ; Springer Science+Business Media, 1996-04)
We introduce a family of graphs, called cellular, and consider the problem of enumerating their perfect matchings. We prove that the number of perfect matchings of a cellular graph equals a power of 2 times the number of ...
Seminormality conditions in the calculus of variations for BV solutions
(Springer-Verlag; Fondazione Annali di Matimatica Pura ed Applicata, 1992-12)
On Soliton Equations of Exceptional Type
(Elsevier, 1994-06-15)
The main purpose of this paper is to present an explicit formula for the general hierarchy of soliton equations constructed by Kac-Wakimoto from the basic representation of an arbitrary affine Kac-Moody algebra. The results ...
Alternative equations of motion for the radiating electron
(Springer-Verlag, 1995-02)
We have previously written down a simple second-order equation for the radiating electron and pointed out that its solutions are well behaved. A key feature of this equation is the presence of a term involving the time ...
Mirror duality and string-theoretic Hodge numbers
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1996-09)
We prove in full generality the mirror duality conjecture for string-theoretic Hodge numbers of Calabi–Yau complete intersections in Gorenstein toric Fano varieties. The proof is based on properties of intersection cohomology.
Absorbing boundary conditionsfor diffusion equations
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1995-08)
We construct and analyse a family of absorbing boundaryconditions for diffusion equations with variable coefficients, curvedartifical boundary, and arbitrary convection. It relies on the geometricidentification of the ...