Sciweavers

MMAS
2010
Springer
13 years 6 months ago
A Fast Multigrid Algorithm for Energy Minimization under Planar Density Constraints
The two-dimensional layout optimization problem reinforced by the efficient space utilization demand has a wide spectrum of practical applications. Formulating the problem as a non...
Dorit Ron, Ilya Safro, Achi Brandt
MMAS
2010
Springer
13 years 6 months ago
Simplified Modelling of a Thermal Bath, with Application to a Fluid Vortex System
Based on the thermodynamic concept of a reservoir, we investigate a computational model for interaction with unresolved degrees of freedom (a thermal bath). We assume that a finite...
Svetlana Dubinkina, Jason Frank, Ben Leimkuhler
MMAS
2010
Springer
13 years 6 months ago
On the Stochastic Modeling of Rigid Body Systems with Application to Polymer Dynamics
The stochastic equations of motion for a system of interacting rigid bodies in a solvent are formulated and studied. Three-dimensional bodies of arbitrary shape, with arbitrary cou...
J. Walter, O. Gonzalez, J. H. Maddocks
MMAS
2010
Springer
13 years 6 months ago
Enhancement of Electromagnetic Fields Caused by Interacting Subwavelength Cavities
This article is devoted to the asymptotic analysis of the electromagnetic fields scattered by a perfectly conducting plane containing two sub-wavelength rectangular cavities. The p...
Jean-François Babadjian, Eric Bonnetier, Fa...
MMAS
2010
Springer
13 years 6 months ago
Gyrokinetic Vlasov Equation in Three Dimensional Setting. Second Order Approximation
One of the main applications in plasma physics concerns the energy production through thermo-nuclear fusion. The controlled fusion requires the confinement of the plasma into a bo...
Mihai Bostan
MMAS
2010
Springer
13 years 6 months ago
Domain Decomposition Preconditioners for Multiscale Flows in High-Contrast Media
In this paper, we study domain decomposition preconditioners for multiscale flows in high contrast media. Our problems are motivated by porous media applications where low conduct...
Juan Galvis, Yalchin Efendiev
MMAS
2010
Springer
13 years 6 months ago
Incorporating Active Transport of Cellular Cargo in Stochastic Mesoscopic Models of Living Cells
We propose a new multiscale method to incorporate active transport of cargo particles in biological cells in stochastic, mesoscopic models of reaction-transport processes. Given a...
Andreas Hellander, Per Lötstedt
MMAS
2010
Springer
13 years 6 months ago
Clustering and Classification through Normalizing Flows in Feature Space
A unified variational methodology is developed for classification and clustering problems, and tested in the classification of tumors from gene expression data. It is based on flu...
J. P. Agnelli, M. Cadeiras, E. G. Tabak, C. V. Tur...
MMAS
2010
Springer
13 years 6 months ago
A Nonlinear PDE-Based Method for Sparse Deconvolution
In this paper, we introduce a new nonlinear evolution partial differential equation for sparse deconvolution problems. The proposed PDE has the form of continuity equation that ar...
Yu Mao, Bin Dong, Stanley Osher
MMAS
2010
Springer
13 years 6 months ago
Balanced Truncation of Linear Second-Order Systems: A Hamiltonian Approach
We present a formal procedure for structure-preserving model reduction of linear second-order and Hamiltonian control problems that appear in a variety of physical contexts, e.g., ...
Carsten Hartmann, Valentina-Mira Vulcanov, Christo...