96 search results - page 8 / 20 » Path Hitting in Acyclic Graphs |
FCT
2009
Springer
13 years 11 months ago
2009
Springer
We show that the reachability problem for directed graphs that are either K3,3-free or K5-free is in unambiguous log-space, UL coUL. This significantly extends the result of Bour...
JALC
2002
13 years 7 months ago
2002
We define general algebraic frameworks for shortest-distance problems based on the structure of semirings. We give a generic algorithm for finding single-source shortest distances...
SIAMDM
2000
13 years 7 months ago
2000
We present a mathematical model for network routing based on generating paths in a consistent direction. Our development is based on an algebraic and geometric framework for defini...
CP
2003
Springer
14 years 18 days ago
2003
Springer
Abstract. Many real world problems, e.g. personnel scheduling and transportation planning, can be modeled naturally as Constrained Shortest Path Problems (CSPPs), i.e., as Shortest...
MST
2002
13 years 7 months ago
2002
We study the average number of delays suffered by packets routed using greedy (work conserving) scheduling policies. We obtain tight bounds on the worst-case average number of del...