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DAM
1999
81views more  DAM 1999»
15 years 9 days ago
On the Complexity of Hamiltonian Path and Cycle Problems in Certain Classes of Digraphs
We survey results on the sequential and parallel complexity of hamiltonian path and cycle problems in various classes of digraphs which generalize tournaments. We give detailed in...
Jørgen Bang-Jensen, Gregory Gutin
96
Voted
ITA
2006
15 years 19 days ago
Complexity classes for membrane systems
Abstract. We compare various computational complexity classes defined within the framework of membrane systems, a distributed parallel computing device which is inspired from the f...
Antonio E. Porreca, Giancarlo Mauri, Claudio Zandr...
106
Voted
ISAAC
2005
Springer
109views Algorithms» more  ISAAC 2005»
15 years 6 months ago
Recursion Theoretic Operators for Function Complexity Classes
We characterize the gap between time and space complexity of functions by operators and completeness. First, we introduce a new notion of operators for function complexity classes ...
Kenya Ueno
JC
2008
92views more  JC 2008»
15 years 19 days ago
Characterizing Valiant's algebraic complexity classes
Valiant introduced 20 years ago an algebraic complexity theory to study the complexity of polynomial families. The basic computation model used is the arithmetic circuit, which ma...
Guillaume Malod, Natacha Portier
142
Voted
PODS
1994
ACM
138views Database» more  PODS 1994»
15 years 4 months ago
Dyn-FO: A Parallel, Dynamic Complexity Class
Traditionally, computational complexity has considered only static problems. Classical Complexity Classes such as NC, P, and NP are de ned in terms of the complexity of checking {...
Sushant Patnaik, Neil Immerman