Title
Polynomial Interpolation and Identity Testing from High Powers over Finite Fields.
Abstract
We consider the problem of recovering (that is, interpolating) and identity testing of a “hidden” monic polynomial , given an oracle access to for , where is finite field of elements (extension fields access is not permitted). The naive interpolation algorithm needs queries and thus requires . We design algorithms that are asymptotically better in certain cases; requiring only queries to the oracle. In the randomized (and quantum) setting, we give a substantially better interpolation algorithm, that requires only queries. Such results have been known before only for the special case of a linear , called the problem. We use techniques from algebra, such as effective versions of Hilbert’s Nullstellensatz, and analytic number theory, such as results on the distribution of rational functions in subgroups and character sum estimates.
Year
DOI
Venue
2015
https://doi.org/10.1007/s00453-016-0273-1
Algorithmica
Keywords
Field
DocType
Hidden polynomial power,Black-box interpolation,Nullstellensatz,Rational function,Deterministic algorithm,Randomised algorithm,Quantum algorithm,11T06,11Y16,68Q12,68Q25
Discrete mathematics,Finite field,Combinatorics,Polynomial interpolation,Mathematical analysis,Interpolation,Character sum,Oracle,Monic polynomial,Analytic number theory,Rational function,Mathematics
Journal
Volume
Issue
ISSN
abs/1502.06631
2
0178-4617
Citations 
PageRank 
References 
1
0.41
10
Authors
5
Name
Order
Citations
PageRank
Gábor Ivanyos125728.02
Marek Karpinski22895302.60
Miklos Santha372892.42
Nitin Saxena428026.72
Igor E. Shparlinski51339164.66