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Restricted Nondeterministic Read-Once Branching Programs and an Exponential Lower Bound for Integer Multiplication

Published online by Cambridge University Press:  15 April 2002

Beate Bollig
Beate Bollig*
Affiliation:
FB Informatik, LS2, Univ. Dortmund, 44221 Dortmund, Germany; (bollig@ls2.cs.uni-dortmund.de)
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Abstract

Branching programs are a well established computation model for Boolean functions, especially read-once branching programs have been studied intensively.In this paper the expressive power of nondeterministic read-once branching programs, more precisely the class of functions representable in polynomial size, is investigated.For that reason two restricted models of nondeterministic read-once branching programs are defined and a lower bound method is presented.Furthermore, the first exponential lower bound for integer multiplicationon the size of a nondeterministic nonoblivious read-once branching program model is proven.

Keywords

Computational complexityread-once branching programsnondeterminisminteger multiplication.

Information

Type
Research Article
Information
RAIRO - Theoretical Informatics and Applications , Volume 35 , Issue 2 , March 2001 , pp. 149 - 162
Copyright
© EDP Sciences, 2001

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