A constrained scheme for Einstein equations based on Dirac gauge and spherical coordinates
We propose a new formulation for 3+1 numerical relativity, based on a constrained scheme and a generalization of Dirac gauge to spherical coordinates.
A. Lichnerowicz +13 more
core +1 more source
Kinematics of Multigrid Monte Carlo
We study the kinematics of multigrid Monte Carlo algorithms by means of acceptance rates for nonlocal Metropolis update proposals. An approximation formula for acceptance rates is derived. We present a comparison of different coarse-to-fine interpolation
A. S. Kronfeld +26 more
core +1 more source
Efficient Real Space Solution of the Kohn-Sham Equations with Multiscale Techniques
We present a multigrid algorithm for self consistent solution of the Kohn-Sham equations in real space. The entire problem is discretized on a real space mesh with a high order finite difference representation. The resulting self consistent equations are
Beck, Thomas L., Wang, Jian
core +2 more sources
Numerical relativity became a powerful tool to investigate the dynamics of binary problems with black holes or neutron stars as well as the very structure of General Relativity.
Okawa, Hirotada
core +1 more source
A Real-Space Full Multigrid study of the fragmentation of Li11+ clusters
We have studied the fragmentation of Li11+ clusters into the two experimentally observed products (Li9+,Li2) and (Li10+,Li) The ground state structures for the two fragmentation channels are found by Molecular Dynamics Simulated Annealing in the ...
A. Brandt +40 more
core +1 more source
Multilinear Wavelets: A Statistical Shape Space for Human Faces
We present a statistical model for $3$D human faces in varying expression, which decomposes the surface of the face using a wavelet transform, and learns many localized, decorrelated multilinear models on the resulting coefficients.
A. Salazar +15 more
core +1 more source
Phase field modeling and computation of vesicle growth or shrinkage. [PDF]
Tang X, Li S, Lowengrub JS, Wise SM.
europepmc +1 more source
On the Nature of the Partial Covalent Bond between Noble Gas Elements and Noble Metal Atoms. [PDF]
Pal R, Chattaraj PK.
europepmc +1 more source
Convergence Analysis of the Fast Subspace Descent Methods for Convex Optimization Problems
The full approximation storage (FAS) scheme is a widely used multigrid method for nonlinear problems. In this paper, a new framework to design and analyze FAS-like schemes for convex optimization problems is developed.
Chen, Long, Hu, Xiaozhe, Wise, Steven M.
core
Infinite-Dimensional Adaptive Boundary Observer for Inner-Domain Temperature Estimation of 3D Electrosurgical Processes using Surface Thermography Sensing. [PDF]
El-Kebir H +5 more
europepmc +1 more source

