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COMBINATORICS
2007
86views more  COMBINATORICS 2007»
15 years 6 months ago
On Directed Triangles in Digraphs
Using a recent result of Chudnovsky, Seymour, and Sullivan, we slightly improve two bounds related to the Caccetta-Haggkvist Conjecture. Namely, we show that if α ≥ 0.35312, th...
Peter Hamburger, Penny E. Haxell, Alexandr V. Kost...
MCM2
2011
51views more  MCM2 2011»
14 years 9 months ago
Fundamental Passacaglia: Harmonic Functions and the Modes of the Musical Tetractys
Abstract. In this paper we take the three tonal functions tonic, subdominant, dominant out of their usual theoretical domicile – the combinatorics of fifth-related triads enrich...
Karst de Jong, Thomas Noll
CPM
2009
Springer
114views Combinatorics» more  CPM 2009»
16 years 1 months ago
Finding All Sorting Tandem Duplication Random Loss Operations
Matthias Bernt, Ming-Chiang Chen, Daniel Merkle, H...
CPM
2009
Springer
122views Combinatorics» more  CPM 2009»
16 years 1 months ago
Reoptimization of the Shortest Common Superstring Problem
Davide Bilò, Hans-Joachim Böckenhauer,...
CPM
2009
Springer
134views Combinatorics» more  CPM 2009»
16 years 1 months ago
Multiple Alignment of Biological Networks: A Flexible Approach
Yves-Pol Deniélou, Frédéric B...