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ENDM
2006
70views more  ENDM 2006»
13 years 4 months ago
Quasirandomness in Graphs
Jim Propp's rotor router model is a simple deterministic analogue of a random walk. Instead of distributing chips randomly, it serves the neighbors in a fixed order. We analy...
Benjamin Doerr, Tobias Friedrich
ENDM
2006
91views more  ENDM 2006»
13 years 4 months ago
There are exactly five biplanes with k=11
A biplane is a 2-(k(k - 1)/2 + 1, k, 2) symmetric design. Only sixteen nontrivial biplanes are known: there are exactly nine biplanes with k < 11, at least five biplanes with k...
Patric R. J. Östergård, Petteri Kaski
ENDM
2006
77views more  ENDM 2006»
13 years 4 months ago
A Two-stage Model for a Day-ahead Paratransit Planning Problem
We consider a dynamic planning problem for paratransit transportation. The focus is on a decision to take one day ahead: which requests to serve with own vehicles, and which reque...
Maria L. A. G. Cremers, Willem K. Klein Haneveld, ...
ENDM
2006
57views more  ENDM 2006»
13 years 4 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...
ENDM
2006
69views more  ENDM 2006»
13 years 4 months ago
Timetabling problems at the TU Eindhoven
The students of the Industrial Design department at the TU Eindhoven are allowed to design part of their curriculum by selecting courses from a huge course pool. They do this by ha...
John van den Broek, Cor A. J. Hurkens, Gerhard J. ...