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 language | English |
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Title of host publication | STACS 1988 - 5th Annual Symposium on Theoretical Aspects of Computer Science, Proceedings |
Editors | Robert Cori, Martin Wirsing |
Publisher | Springer Verlag |
Pages | 29-37 |
Number of pages | 9 |
ISBN (Print) | 9783540188346 |
DOIs | |
State | Published - 1988 |
Event | 5th Annual Symposium on Theoretical Aspects of Computer Science, STACS 1988 - Bordeaux, France Duration: 11 Feb 1988 → 13 Feb 1988 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 294 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 5th Annual Symposium on Theoretical Aspects of Computer Science, STACS 1988 |
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Country/Territory | France |
City | Bordeaux |
Period | 11/02/88 → 13/02/88 |
Bibliographical note
Publisher Copyright:© Springer-Verlag Berlin Heidelberg 1988.