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COMBINATORICA
2010
13 years 7 months ago
A superadditivity and submultiplicativity property for cardinalities of sumsets
For finite sets of integers A1, A2 . . . An we study the cardinality of the n-fold sumset A1 +
Katalin Gyarmati, Máté Matolcsi, Imr...
AMC
2005
132views more  AMC 2005»
13 years 9 months ago
Higher order isoparametric finite element solution of Stokes flow
A finite element method of the penalization type, using higher order shape functions with rectangular elements, is presented for the solution of the Stokes flow. The fluid is visc...
R. Eid
ENDM
2006
57views more  ENDM 2006»
13 years 10 months ago
One-point extensions of generalized hexagons and octagons
In this note, we prove the uniqueness of the one-point extension S of a generalized hexagon of order 2 and prove the non-existence of such an extension S of any other finite gener...
Hans Cuypers, A. De Wispelaere, Hendrik Van Maldeg...
COMBINATORICS
1999
93views more  COMBINATORICS 1999»
13 years 9 months ago
Induced Complete h-partite Graphs in Dense Clique-less Graphs
It is proven that for every fixed h, a and b, a graph with n vertices and minimum degree at least h-1 h n, which contains no copy of Kb (the complete graph with b vertices), conta...
Eldar Fischer
CORR
2004
Springer
121views Education» more  CORR 2004»
13 years 9 months ago
Solving Elliptic Finite Element Systems in Near-Linear Time with Support Preconditioners
We consider linear systems arising from the use of the finite element method for solving a certain class of linear elliptic problems. Our main result is that these linear systems, ...
Erik G. Boman, Bruce Hendrickson, Stephen A. Vavas...