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» On Lengths of Rainbow Cycles
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COMBINATORICS
2007
87views more  COMBINATORICS 2007»
14 years 11 months ago
A Bijection on Dyck Paths and its Cycle Structure
The known bijections on Dyck paths are either involutions or have notoriously intractable cycle structure. Here we present a size-preserving bijection on Dyck paths whose cycle st...
David Callan
DM
1998
68views more  DM 1998»
14 years 11 months ago
Alternating cycles and trails in 2-edge-coloured complete multigraphs
We consider edge-coloured multigraphs. A trail in such a multigraph is alternating if its successive edges differ in colour. Let G be a 2-edge-coloured complete graph and let M b...
Jørgen Bang-Jensen, Gregory Gutin
CORR
2010
Springer
108views Education» more  CORR 2010»
14 years 6 months ago
Finding Cycles and Trees in Sublinear Time
We present sublinear-time (randomized) algorithms for finding simple cycles of length at least k 3 and tree-minors in bounded-degree graphs. The complexity of these algorithms is...
Artur Czumaj, Oded Goldreich, Dana Ron, C. Seshadh...
ICRA
1998
IEEE
98views Robotics» more  ICRA 1998»
15 years 4 months ago
Generation of Energy Optimal Complete Gait Cycles for Biped Robots
In this paper we address the problem of energyoptimal gait generation for biped robots. Using a simpli ed robot dynamics that ignores the e ects of centripetal forces, we obtain u...
L. Roussel, Carlos Canudas de Wit, Ambarish Goswam...
COMBINATORICS
2004
94views more  COMBINATORICS 2004»
14 years 11 months ago
Short Cycles in Random Regular Graphs
Consider random regular graphs of order n and degree d = d(n) 3. Let g = g(n) 3 satisfy (d-1)2g-1 = o(n). Then the number of cycles of lengths up to g have a distribution simila...
Brendan D. McKay, Nicholas C. Wormald, Beata Wysoc...