Sciweavers

598 search results - page 7 / 120
» The Structure of Sparse Resultant Matrices
Sort
View
ISSAC
2007
Springer
83views Mathematics» more  ISSAC 2007»
14 years 2 months ago
Parallel computation of the rank of large sparse matrices from algebraic K-theory
This paper deals with the computation of the rank and some integer Smith forms of a series of sparse matrices arising in algebraic K-theory. The number of non zero entries in the ...
Jean-Guillaume Dumas, Philippe Elbaz-Vincent, Pasc...
ICCAD
1995
IEEE
68views Hardware» more  ICCAD 1995»
14 years 6 days ago
Generating sparse partial inductance matrices with guaranteed stability
This paper proposes a definition of magnetic vector potential that can be used to evaluate sparse partial inductance matrices. Unlike the commonly applied procedure of discarding...
Byron Krauter, Lawrence T. Pileggi
SIAMSC
2010
142views more  SIAMSC 2010»
13 years 3 months ago
Hypergraph-Based Unsymmetric Nested Dissection Ordering for Sparse LU Factorization
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...
ICASSP
2009
IEEE
13 years 6 months ago
On the recovery of nonnegative sparse vectors from sparse measurements inspired by expanders
This paper studies compressed sensing for the recovery of non-negative sparse vectors from a smaller number of measurements than the ambient dimension of the unknown vector. We fo...
M. Amin Khajehnejad, Babak Hassibi
SIAMSC
2010
120views more  SIAMSC 2010»
13 years 7 months ago
Simultaneously Sparse Solutions to Linear Inverse Problems with Multiple System Matrices and a Single Observation Vector
Abstract. A problem that arises in slice-selective magnetic resonance imaging (MRI) radiofrequency (RF) excitation pulse design is abstracted as a novel linear inverse problem with...
Adam C. Zelinski, Vivek K. Goyal, Elfar Adalsteins...