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» Odd Crossing Number and Crossing Number Are Not the Same
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ARSCOM
2005
92views more  ARSCOM 2005»
13 years 7 months ago
Binary Strings Without Odd Runs of Zeros
We look at binary strings of length n which contain no odd run of zeros and express the total number of such strings, the number of zeros, the number of ones, the total number of ...
Ralph Grimaldi, Silvia Heubach
FSTTCS
2005
Springer
14 years 1 months ago
Comparing Trees Via Crossing Minimization
Abstract. Two trees with the same number of leaves have to be embedded in two layers in the plane such that the leaves are aligned in two adjacent layers. Additional matching edges...
Henning Fernau, Michael Kaufmann, Mathias Poths
ENDM
2008
59views more  ENDM 2008»
13 years 7 months ago
Unexpected behaviour of crossing sequences
The nth crossing number of a graph G, denoted crn(G), is the minimum number of crossings in a drawing of G on an orientable surface of genus n. We prove that for every a > b &g...
Matt DeVos, Bojan Mohar, Robert Sámal
COMPGEOM
1996
ACM
13 years 11 months ago
On the Number of Arrangements of Pseudolines
Given a simple arrangementof n pseudolines in the Euclidean plane, associate with line i the list i of the lines crossing i in the order of the crossings on line i. i = ( i 1; i 2;...
Stefan Felsner
ATAL
2004
Springer
14 years 27 days ago
Preference Elicitation without Numbers
The development of autonomous multi-agent systems acting upon the interests of one or more users involves the elicitation of preferences of these users. In decision theory, models...
P. H. M. P. Roelofsma, Martijn C. Schut