On computations with integer division: Extended abstract

Bettina Just, Fb Mathematik, Friedhelm Meyer auf der Heide, Fb Informatik, Avi Wigderson

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

2 Scopus citations

Abstract

We consider computation trees (CT's) with operations S ⊂ {+, −, *, DIV, DIVC}, where DIV denotes integer division and DIVC integer division by constants. We characterize the families of languages L ⊂ ℕ that can be recognized over {+, −, DIVC}, {+, −, DIV}, and {+, −, *, DIV}, resp. and show that they are identical. Furthermore we prove lower bounds for CT's with operations {+, −, DIVC} for languages L ⊂ ℕ which only contain short arithmetic progressions. We cannot apply the classical component counting arguments as for operation sets S ⊂ {+, −, *,./.} because of the DIVC - operation. Such bounds are even no longer true. Instead we apply results from the Geometry of Numbers about arithmetic progressions on integer points in high-dimensional convex sets for our lower bounds.

Original languageEnglish
Title of host publicationSTACS 1988 - 5th Annual Symposium on Theoretical Aspects of Computer Science, Proceedings
EditorsRobert Cori, Martin Wirsing
PublisherSpringer Verlag
Pages29-37
Number of pages9
ISBN (Print)9783540188346
DOIs
StatePublished - 1988
Event5th Annual Symposium on Theoretical Aspects of Computer Science, STACS 1988 - Bordeaux, France
Duration: 11 Feb 198813 Feb 1988

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume294 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference5th Annual Symposium on Theoretical Aspects of Computer Science, STACS 1988
Country/TerritoryFrance
CityBordeaux
Period11/02/8813/02/88

Bibliographical note

Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 1988.

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