More deterministic simulation in logspace

Noam Nisan, David Zuckerman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

50 Scopus citations


We show that any randomized space(S) algorithm which uses only poly(S) random bits can be simulated deterministically in space(S), for 5(n) > logn. Of independent interest is our main technical tool: A procedure which extracts randomness from a defective random source using a small additional number of truly random bits.

Original languageAmerican English
Title of host publicationProceedings of the 25th Annual ACM Symposium on Theory of Computing, STOC 1993
PublisherAssociation for Computing Machinery
Number of pages10
ISBN (Electronic)0897915917
StatePublished - 1 Jun 1993
Event25th Annual ACM Symposium on Theory of Computing, STOC 1993 - San Diego, United States
Duration: 16 May 199318 May 1993

Publication series

NameProceedings of the Annual ACM Symposium on Theory of Computing
VolumePart F129585
ISSN (Print)0737-8017


Conference25th Annual ACM Symposium on Theory of Computing, STOC 1993
Country/TerritoryUnited States
CitySan Diego

Bibliographical note

Funding Information:
*Dept. of CS, Hebrew University, Jerusalem. Supported by BSF 89-00126 and by a Wolfson research award. Part of this research waa done while the author visited IBM Almaden. t MIT Lab for Computer Science, 545 Technology %u=e, Cambridge, MA 02139. Supported by an NSF Postdoctoral Fellowship. Part of this research was done while the author visited the Hebrew University in Jerusalem, Princeton University through DIMACS, and the International Computer Science Institute in Berkeley. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the ACM copyright notice and the title of the publication and its date appear, and notice is given that copying is by permission of the Association for Computing Machinery. To copy otherwise, or to republish, raquires a fee and/or specific permission. 25th ACM STOC ‘93-51931CA,LJSA 0 1993 ACM 0-S9791-591 -7/93 /0005 /0235 ... $1 ,50

Publisher Copyright:
© 1993 ACM.

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