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MOC
2000
79views more  MOC 2000»
14 years 11 months ago
Computational scales of Sobolev norms with application to preconditioning
Abstract. This paper provides a framework for developing computationally efficient multilevel preconditioners and representations for Sobolev norms. Specifically, given a Hilbert s...
James H. Bramble, Joseph E. Pasciak, Panayot Vassi...
COMBINATORICS
1999
85views more  COMBINATORICS 1999»
14 years 11 months ago
Permutation Patterns and Continued Fractions
We find, in the form of a continued fraction, the generating function for the number of (132)-avoiding permutations that have a given number of (123) patterns, and show how to ext...
Aaron Robertson, Herbert S. Wilf, Doron Zeilberger
DCC
1999
IEEE
14 years 11 months ago
On Perfect Ternary Constant Weight Codes
We consider the space of ternary words of length n and fixed weight w with the usual Hamming distance. A sequence of perfect single error correcting codes in this space is construc...
Jack H. van Lint, Ludo M. G. M. Tolhuizen
NETWORKS
2002
14 years 11 months ago
Augmented cubes
The n-dimensional augmented cube, denoted as AQn, a variation of the hypercube, possesses some properties superior to those of the hypercube. In this paper, we show that every ver...
Sheshayya A. Choudum, V. Sunitha
TCS
1998
14 years 11 months ago
Unary PCF is Decidable
We show that unary PCF, a very small fragment of Plotkin’s PCF [?], cidable observational pre-order, and that its fully abstract model is effectively presentable. This is in ma...
Ralph Loader