Now showing items 31-40 of 357
Renormalization of some one-space dimensional quantum field theories by unitary transformation
(Elsevier, 1971-11)
The one-space dimensional interaction is renormalized by unitary transformation. A uniformly convergent sequence of unitary operators is defined which transforms the sequence of cut-off Hamiltonians, arranged in order of ...
New Realizations of the Maximal Satake Compactifications of Riemannian Symmetric Spaces of Noncompact Type
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-07)
We give new realizations of the maximal Satake compactifications of Riemannian symmetric spaces of noncompact type as orbit closures inside Grassmannians and orthogonal groups. Our constructions are partially motivated by ...
Elementary abelian p -subgroups of algebraic groups
(Kluwer Academic Publishers; Springer Science+Business Media, 1991-09)
Let be an algebraically closed field and let G be a finite-dimensional algebraic group over which is nearly simple , i.e. the connected component of the identity G 0 is perfect, C G ( G 0 )= Z ( G 0 ) and G 0 / Z ( G 0 ) ...
Better Alternatives to OSPF Routing
(Springer-Verlag; Springer, 2005-08)
The current standard for intra-domain network routing, Open ShortestPath First (OSPF), suffers from a number ofproblems-the tunable parameters (the weights) are hard tooptimize, the chosen paths are not robust underchanges ...
On a class of conformal metrics arising in the work of Seiberg and Witten
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2000-01)
We examine a class of conformal metrics arising in the “ N = 2 supersymmetric Yang-Mills theory” of Seiberg and Witten. We provide several alternate characterizations of this class of metrics and proceed to examine issues ...
The effect of imputed values on the distribution of the goodness-of-fit chi-square statistic
(Elsevier, 1987)
A method used to compensate for nonresponse is to impute missing values; that is, to replace each missing value with a respondent value selected from all observed values or from a subset of observed values. The imputation ...