Now showing items 341-350 of 357
Perturbation theory for eigenvalues and resonances of Schrodinger hamiltonians
(Elsevier, 1980-02-15)
Suppose that e2[epsilon]|x|V [set membership, variant] ReLP(R3) for some p > 2 and for g [set membership, variant] R, H(g) = - [Delta] + g V, H(g) = -[Delta] + gV. The main result, Theorem 3, uses Puiseaux expansions ...
BV estimates fail for most quasilinear hyperbolic systems in dimensions greater than one
(Springer-Verlag, 1986-09)
We show that for most non-scalar systems of conservation laws in dimension greater than one, one does not have BV estimates of the form even for smooth solutions close to constants. Analogous estimates for L p norms with ...
Pluripotential theory for convex bodies in R N
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2005-05)
A Brownian motion version of the directed polymer problem
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1996-08)
Consider a Brownian particle in three dimensions in a random environment. The environment is determined by a potential random in space and time. It is shown that at small noise the large-time behavior of the particle is ...
Quasi-Minuscule Quotients and Reduced Words for Reflections
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-05)
We study the reduced expressions for reflections in Coxeter groups, with particular emphasis on finite Weyl groups. For example, the number of reduced expressions for any reflection can be expressed as the sum of the squares ...
Recognizing Schubert Cells
(Kluwer Academic Publishers; Springer Science+Business Media, 2000-07)
We address the problem of distinguishing between different Schubert cells using vanishing patterns of generalized Plücker coordinates.
A phase cell cluster expansion for a hierarchical Ø 3 4 model
(Springer-Verlag, 1983-06)
The formalism developed in a previous paper is applied to yield a phase cell cluster expansion for a hierarchical ø 3 4 model. The field is expanded into modes with specific renormalization group scaling properties. The ...
Some conjectures and results concerning the homology of nilpotent Lie algebras
(Elsevier, 1990-11)
In this paper we consider the Lie algebra homology ofLk=L[circle times operator](C[t]/(tk+1))for L a complex Lie algebra. Our goal is to express the homology of Lk in terms of the homology of L. This problem comes up in ...
Symmetric Lie algebras
(Elsevier, 1985-11)
Lie Rootsystems R are introduced, with axioms which reflect properties of the rootset of a Lie algebra L as structured by representations of compatible simple restricted rank 1 subquotients of L. The rank 1 Lie rootsystems ...