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  5. On Parity and Near-Testability: $P^{A} \neq NT^{A}$ With Probability 1

On Parity and Near-Testability: $P^{A} \neq NT^{A}$ With Probability 1

File(s)
87-852.pdf (721.16 KB)
87-852.ps (195.01 KB)
Permanent Link(s)
https://hdl.handle.net/1813/6692
Collections
Computer Science Technical Reports
Author
Hemachandra, Lane A.
Abstract

The class of near-testable sets, NT, was defined by Goldsmith, Joseph, and Young. They noted that $P \subseteq NT \subseteq PSPACE$, and asked whether P=NT. This note shows that NT shares the same $m$-degree as the parity-based complexity class $\bigoplus P$ (i.e., $NT\equiv^{p}_{m} \oplus P$) and uses this to prove that relative to a random oracle $A, P^{A} \neq NT^{A}$ with probability one. Indeed, with probability one, $NT^{A} - (NP^{A} \bigcup coNP^{A}) \neq 0$.

Date Issued
1987-07
Publisher
Cornell University
Keywords
computer science
•
technical report
Previously Published as
http://techreports.library.cornell.edu:8081/Dienst/UI/1.0/Display/cul.cs/TR87-852
Type
technical report

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