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IWPEC
2004
Springer
15 years 12 months ago
On Miniaturized Problems in Parameterized Complexity Theory
Abstract. We introduce a general notion of miniaturization of a problem that comprises the different miniaturizations of concrete problems considered so far. We develop parts of t...
Yijia Chen, Jörg Flum
LSSC
2007
Springer
16 years 21 days ago
Application of Hierarchical Decomposition: Preconditioners and Error Estimates for Conforming and Nonconforming FEM
A successive refinement of a finite element grid provides a sequence of nested grids and hierarchy of nested finite element spaces as well as a natural hierarchical decompositio...
Radim Blaheta
MFCS
1993
Springer
15 years 10 months ago
The Complexity of Finding Replicas Using Equality Tests
We prove (for fixed k) that at least 1 k−1 (n 2 ) − O(n) equality tests and no more than 2 k (n 2 )+O(n) equality tests are needed in the worst case to determine whether a giv...
Gudmund Skovbjerg Frandsen, Peter Bro Miltersen, S...
CIE
2007
Springer
15 years 10 months ago
Definability in the Homomorphic Quasiorder of Finite Labeled Forests
Abstract. We prove that for any k 3 each element of the homomorphic quasiorder of finite k-labeled forests is definable, provided that the minimal non-smallest elements are allowe...
Oleg V. Kudinov, Victor L. Selivanov
MCS
2007
Springer
15 years 6 months ago
Discrete conservation of nonnegativity for elliptic problems solved by the hp-FEM
Most results related to discrete nonnegativity conservation principles (DNCP) for elliptic problems are limited to finite differences (FDM) and lowest-order finite element meth...
Pavel Solín, Tomás Vejchodský...