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NA
2011
373views Computer Vision» more  NA 2011»
14 years 10 months ago
On preconditioned MHSS iteration methods for complex symmetric linear systems
We propose a preconditioned variant of the modified HSS (MHSS) iteration method for solving a class of complex symmetric systems of linear equations. Under suitable conditions, w...
Zhong-Zhi Bai, Michele Benzi, Fang Chen
139
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TCS
2011
14 years 10 months ago
Realizability models and implicit complexity
New, simple, proofs of soundness (every representable function lies in a given complexity class) for Elementary Affine Logic, LFPL and Soft Affine Logic are presented. The proofs ...
Ugo Dal Lago, Martin Hofmann
DLOG
2011
14 years 6 months ago
The Complexity of Probabilistic EL
We analyze the complexity of subsumption in probabilistic variants of the description logic EL. In the case where probabilities apply only to concepts, we map out the borderline be...
Jean Christoph Jung, Víctor Gutiérre...
COCO
2005
Springer
106views Algorithms» more  COCO 2005»
15 years 8 months ago
The Complexity of the Inertia and Some Closure Properties of GapL
The inertia of an n × n matrix A is defined as the triple (i+(A), i−(A), i0(A)), where i+(A), i−(A), and i0(A) are the number of eigenvalues of A, counting multiplicities, w...
Thanh Minh Hoang, Thomas Thierauf
FCT
2005
Springer
15 years 8 months ago
The Complexity of Semilinear Problems in Succinct Representation
We prove completeness results for twenty-three problems in semilinear geometry. These results involve semilinear sets given by additive circuits as input data. If arbitrary real co...
Peter Bürgisser, Felipe Cucker, Paulin Jacob&...