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JCC
2008
132views more  JCC 2008»
13 years 10 months ago
The implementation of a fast and accurate QM/MM potential method in Amber
Abstract: Version 9 of the Amber simulation programs includes a new semi-empirical hybrid QM/MM functionality. This includes support for implicit solvent (generalized Born) and for...
Ross C. Walker, Michael F. Crowley, David A. Case
SIAMAM
2008
76views more  SIAMAM 2008»
13 years 10 months ago
Stability of Solitary Waves in a Semiconductor Drift-Diffusion Model
We consider a macroscopic (drift-diffusion) model describing a simple microwave generator, consisting of a special type of semiconductor material that, when biased above a certain ...
C. M. Cuesta, C. Schmeiser
SIAMCO
2008
121views more  SIAMCO 2008»
13 years 10 months ago
A Direct Solution Method for Stochastic Impulse Control Problems of One-dimensional Diffusions
We consider stochastic impulse control problems where the process is driven by one-dimensional diffusions. Impulse control problems are widely applied to financial engineering and...
Masahiko Egami
SIAMJO
2008
85views more  SIAMJO 2008»
13 years 9 months ago
Explicit Reformulations for Robust Optimization Problems with General Uncertainty Sets
We consider a rather general class of mathematical programming problems with data uncertainty, where the uncertainty set is represented by a system of convex inequalities. We prove...
Igor Averbakh, Yun-Bin Zhao
SIAMSC
2008
167views more  SIAMSC 2008»
13 years 9 months ago
Low-Dimensional Polytope Approximation and Its Applications to Nonnegative Matrix Factorization
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
Moody T. Chu, Matthew M. Lin