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    SIAMSC
    2010
    104views more  SIAMSC 2010»
    BDDC Preconditioners for Spectral Element Discretizations of Almost Incompressible Elasticity in Three Dimensions
    12 years 11 months ago
    BDDC Preconditioners for Spectral Element Discretizations of Almost Incompressible Elasticity in Three Dimensions
    Download  cs.nyu.edu
    Abstract. BDDC algorithms are constructed and analyzed for the system of almost incompressible elasticity discretized with Gauss-Lobatto-Legendre spectral elements in three dimensi...
    Luca F. Pavarino, Olof B. Widlund, Stefano Zampini
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    SIAMSC
    2010
    112views more  SIAMSC 2010»
    Communication-optimal Parallel and Sequential Cholesky Decomposition
    12 years 11 months ago
    Communication-optimal Parallel and Sequential Cholesky Decomposition
    Download  bebop.cs.berkeley.edu
    Grey Ballard, James Demmel, Olga Holtz, Oded Schwa...
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    SIAMSC
    2010
    103views more  SIAMSC 2010»
    Semi-Implicit Formulations of the Navier--Stokes Equations: Application to Nonhydrostatic Atmospheric Modeling
    12 years 11 months ago
    Semi-Implicit Formulations of the Navier--Stokes Equations: Application to Nonhydrostatic Atmospheric Modeling
    Download  faculty.nps.edu
    Francis X. Giraldo, Marco Restelli, M. Läuter
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    SIAMSC
    2010
    132views more  SIAMSC 2010»
    An Interior-Point Algorithm for Large-Scale Nonlinear Optimization with Inexact Step Computations
    12 years 11 months ago
    An Interior-Point Algorithm for Large-Scale Nonlinear Optimization with Inexact Step Computations
    Download  www.optimization-online.org
    We present a line-search algorithm for large-scale continuous optimization. The algorithm is matrix-free in that it does not require the factorization of derivative matrices. Inste...
    Frank E. Curtis, Olaf Schenk, Andreas Wächter
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    SIAMSC
    2010
    155views more  SIAMSC 2010»
    Quasi-Newton Methods on Grassmannians and Multilinear Approximations of Tensors
    12 years 11 months ago
    Quasi-Newton Methods on Grassmannians and Multilinear Approximations of Tensors
    Download  www.optimization-online.org
    In this paper we proposed quasi-Newton and limited memory quasi-Newton methods for objective functions defined on Grassmannians or a product of Grassmannians. Specifically we defin...
    Berkant Savas, Lek-Heng Lim
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    SIAMSC
    2010
    117views more  SIAMSC 2010»
    Tackling Box-Constrained Optimization via a New Projected Quasi-Newton Approach
    12 years 11 months ago
    Tackling Box-Constrained Optimization via a New Projected Quasi-Newton Approach
    Download  www.cs.utexas.edu
    Dongmin Kim, Suvrit Sra, Inderjit S. Dhillon
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    SIAMSC
    2010
    142views more  SIAMSC 2010»
    Hypergraph-Based Unsymmetric Nested Dissection Ordering for Sparse LU Factorization
    12 years 11 months ago
    Hypergraph-Based Unsymmetric Nested Dissection Ordering for Sparse LU Factorization
    Download  www.sandia.gov
    In this paper we present HUND, a hypergraph-based unsymmetric nested dissection ordering algorithm for reducing the fill-in incurred during Gaussian elimination. HUND has several i...
    Laura Grigori, Erik G. Boman, Simplice Donfack, Ti...
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    SIAMSC
    2010
    145views more  SIAMSC 2010»
    An "hp" Certified Reduced Basis Method for Parametrized Elliptic Partial Differential Equations
    12 years 11 months ago
    An "hp" Certified Reduced Basis Method for Parametrized Elliptic Partial Differential Equations
    Download  augustine.mit.edu
    We present a new "hp" parameter multi-domain certified reduced basis method for rapid and reliable online evaluation of functional outputs associated with parametrized el...
    Jens L. Eftang, Anthony T. Patera, Einar M. R&osla...
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    SIAMSC
    2010
    142views more  SIAMSC 2010»
    Efficient Spectral Sparse Grid Methods and Applications to High-Dimensional Elliptic Problems
    12 years 11 months ago
    Efficient Spectral Sparse Grid Methods and Applications to High-Dimensional Elliptic Problems
    Download  www.math.purdue.edu
    Abstract. We develop in this paper some efficient algorithms which are essential to implementations of spectral methods on the sparse grid by Smolyak's construction based on a...
    Jie Shen, Haijun Yu
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    SIAMSC
    2010
    170views more  SIAMSC 2010»
    Adaptive ADER Methods Using Kernel-Based Polyharmonic Spline WENO Reconstruction
    12 years 11 months ago
    Adaptive ADER Methods Using Kernel-Based Polyharmonic Spline WENO Reconstruction
    Download  www.math.uni-hamburg.de
    An adaptive ADER finite volume method on unstructured meshes is proposed. The method combines high order polyharmonic spline WENO reconstruction with high order flux evaluation. Po...
    Terhemen Aboiyar, Emmanuil H. Georgoulis, Armin Is...
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