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» Computing Hilbert Class Polynomials
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IWOCA
2010
Springer
232views Algorithms» more  IWOCA 2010»
14 years 6 months ago
Computing Role Assignments of Proper Interval Graphs in Polynomial Time
A homomorphism from a graph G to a graph R is locally surjective if its restriction to the neighborhood of each vertex of G is surjective. Such a homomorphism is also called an R-r...
Pinar Heggernes, Pim van 't Hof, Daniël Paulu...
ICALP
2009
Springer
15 years 12 months ago
Unconditional Lower Bounds against Advice
We show several unconditional lower bounds for exponential time classes against polynomial time classes with advice, including:
Harry Buhrman, Lance Fortnow, Rahul Santhanam
120
Voted
COCO
2005
Springer
153views Algorithms» more  COCO 2005»
15 years 5 months ago
Average-Case Computations - Comparing AvgP, HP, and Nearly-P
We examine classes of distributional problems defined in terms of polynomial-time decision algorithms with bounded error probability. The class AvgP [5] has been characterized in...
Arfst Nickelsen, Birgit Schelm
96
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DLT
2010
15 years 1 months ago
On a Powerful Class of Non-universal P Systems with Active Membranes
Abstract. We prove that uniform and semi-uniform families of P systems with active membranes using only communication and nonelementary division rules are not computationally unive...
Antonio E. Porreca, Alberto Leporati, Claudio Zand...
CORR
2011
Springer
213views Education» more  CORR 2011»
14 years 3 months ago
Symbolic computation of weighted Moore-Penrose inverse using partitioning method
We propose a method and algorithm for computing the weighted MoorePenrose inverse of one-variable rational matrices. Also, we develop an algorithm for computing the weighted Moore...
Milan B. Tasic, Predrag S. Stanimirovic, Marko D. ...