A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits

Consider a (MOD q, MOD p) circuit, where the inputs of the bottom MOD p gates are degree- d polynomials with integer coefficients of the input variables (p, q are different primes). Using our main tool --- the Degree Decreasing Lemma --- we show that this circuit can be converted to a...

Full description

Bibliographic Details
Main Author: Vince Grolmusz
Format: Article
Language:English
Published: Discrete Mathematics & Theoretical Computer Science 2001-12-01
Series:Discrete Mathematics & Theoretical Computer Science
Online Access:http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/145
_version_ 1811277841530093568
author Vince Grolmusz
author_facet Vince Grolmusz
author_sort Vince Grolmusz
collection DOAJ
description Consider a (MOD q, MOD p) circuit, where the inputs of the bottom MOD p gates are degree- d polynomials with integer coefficients of the input variables (p, q are different primes). Using our main tool --- the Degree Decreasing Lemma --- we show that this circuit can be converted to a (MOD q, MOD p) circuit with linear polynomials on the input-level with the price of increasing the size of the circuit. This result has numerous consequences: for the Constant Degree Hypothesis of Barrington, Straubing and Thérien, and generalizing the lower bound results of Yan and Parberry, Krause and Waack, and Krause and Pudlák. Perhaps the most important application is an exponential lower bound for the size of (MOD q, MOD p) circuits computing the n fan-in AND, where the input of each MOD p gate at the bottom is an arbitrary integer valued function of cn variables (c<1) plus an arbitrary linear function of n input variables.
first_indexed 2024-04-13T00:25:07Z
format Article
id doaj.art-e9c5fe90550048088a7d6c1d6ad79b73
institution Directory Open Access Journal
issn 1462-7264
1365-8050
language English
last_indexed 2024-04-13T00:25:07Z
publishDate 2001-12-01
publisher Discrete Mathematics & Theoretical Computer Science
record_format Article
series Discrete Mathematics & Theoretical Computer Science
spelling doaj.art-e9c5fe90550048088a7d6c1d6ad79b732022-12-22T03:10:39ZengDiscrete Mathematics & Theoretical Computer ScienceDiscrete Mathematics & Theoretical Computer Science1462-72641365-80502001-12-0142A Degree-Decreasing Lemma for (M O D q- M O D p) CircuitsVince GrolmuszConsider a (MOD q, MOD p) circuit, where the inputs of the bottom MOD p gates are degree- d polynomials with integer coefficients of the input variables (p, q are different primes). Using our main tool --- the Degree Decreasing Lemma --- we show that this circuit can be converted to a (MOD q, MOD p) circuit with linear polynomials on the input-level with the price of increasing the size of the circuit. This result has numerous consequences: for the Constant Degree Hypothesis of Barrington, Straubing and Thérien, and generalizing the lower bound results of Yan and Parberry, Krause and Waack, and Krause and Pudlák. Perhaps the most important application is an exponential lower bound for the size of (MOD q, MOD p) circuits computing the n fan-in AND, where the input of each MOD p gate at the bottom is an arbitrary integer valued function of cn variables (c<1) plus an arbitrary linear function of n input variables.http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/145
spellingShingle Vince Grolmusz
A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
Discrete Mathematics & Theoretical Computer Science
title A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
title_full A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
title_fullStr A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
title_full_unstemmed A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
title_short A Degree-Decreasing Lemma for (M O D q- M O D p) Circuits
title_sort degree decreasing lemma for m o d q m o d p circuits
url http://www.dmtcs.org/dmtcs-ojs/index.php/dmtcs/article/view/145
work_keys_str_mv AT vincegrolmusz adegreedecreasinglemmaformodqmodpcircuits
AT vincegrolmusz degreedecreasinglemmaformodqmodpcircuits