On Sums of Locally Testable Affine Invariant Properties View Full Text


Ontology type: schema:Chapter      Open Access: True


Chapter Info

DATE

2011

AUTHORS

Eli Ben-Sasson , Elena Grigorescu , Ghid Maatouk , Amir Shpilka , Madhu Sudan

ABSTRACT

Affine-invariant properties are an abstract class of properties that generalize some central algebraic ones, such as linearity and low-degree-ness, that have been studied extensively in the context of property testing. Affine invariant properties consider functions mapping a big field \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_{q^n}$\end{document} to the subfield \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_q$\end{document} and include all properties that form an \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_q$\end{document}-vector space and are invariant under affine transformations of the domain. Almost all the known locally testable affine-invariant properties have so-called “single-orbit characterizations” — namely they are specified by a single local constraint on the property, and the “orbit” of this constraint, i.e., translations of this constraint induced by affine-invariance. Single-orbit characterizations by a local constraint are also known to imply local testability. In this work we show that properties with single-orbit characterizations are closed under “summation”. To complement this result, we also show that the property of being an n-variate low-degree polynomial over \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_q$\end{document} has a single-orbit characterization (even when the domain is viewed as \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_{q^n}$\end{document} and so has very few affine transformations). As a consequence we find that the sum of any sparse affine-invariant property (properties satisfied by qO(n)-functions) with the set of degree d multivariate polynomials over \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\mathbb{F}_q$\end{document} has a single-orbit characterization (and is hence locally testable) when q is prime. We conclude with some intriguing questions/conjectures attempting to classify all locally testable affine-invariant properties. More... »

PAGES

400-411

Book

TITLE

Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques

ISBN

978-3-642-22934-3
978-3-642-22935-0

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-3-642-22935-0_34

DOI

http://dx.doi.org/10.1007/978-3-642-22935-0_34

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1049575323


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