E (complexity)

E (complexity)

In computational complexity theory, the complexity class E is the set of decision problems that can be solved by a deterministic Turing machine in time 2O(n) and is therefore equal to the complexity class DTIME(2O(n)).

E is less important to complexity theory than the similar class EXPTIME because it is not closed under polynomial-time many-one reductions.

References

* E. Allender and M. Strauss. Measure on small complexity classes with applications for BPP, "Proceedings of IEEE FOCS'94", pp. 807-818, 1994. ECCC [http://eccc.uni-trier.de/eccc-reports/1994/TR94-004/ TR94-004] , DIMACS [http://dimacs.rutgers.edu/TechnicalReports/abstracts/1994/94-18.html TR 94-18] .
* R. Book. On languages accepted in polynomial time, "SIAM Journal on Computing" 1(4):281-287, 1972.
* R. Book. Comparing complexity classes, "Journal of Computer and System Sciences" 3(9):213-229, 1974.
* R. Impagliazzo and G. Tardos. Decision versus search problems in super-polynomial time, in "Proceedings of IEEE FOCS 1989", pp. 222-227, 1989.
* O. Watanabe. Comparison of polynomial time completeness notions, "Theoretical Computer Science" 53:249-265, 1987.

External links

* [http://qwiki.caltech.edu/wiki/Complexity_Zoo#e E] at the Complexity Zoo


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Complexity management — is a business methodology that deals with the analysis and optimization of complexity in enterprises. Effects of complexity pertain to all business processes along the value chain and hence complexity management requires a holistic approach.… …   Wikipedia

  • Complexity theory and organizations — Complexity theory and organizations, also called complexity strategy or complex adaptive organization, is the use of Complexity theory in the field of strategic management and organizational studies. Contents 1 Overview 2 Early research 3 Later… …   Wikipedia

  • compLexity — coL Логотип организации Страна …   Википедия

  • Complexity theory and strategy — Complexity theory has been used extensively in the field of strategic management and organizational studies, sometimes called complexity strategy or complex adaptive organization on the internet or in popular press. Broadly speaking, complexity… …   Wikipedia

  • Complexity (journal) —   Discipline Complex Systems …   Wikipedia

  • Complexity, Problem Solving, and Sustainable Societies — is a paper on energy economics by Joseph Tainter from 1996. Contents 1 Focus 1.1 Attempts 1.2 Requirement of knowledge 2 See …   Wikipedia

  • Complexity theory — may refer to: The study of a complex system or complex systems Complexity theory and organizations, the application of complexity theory to strategy Complexity economics, the application of complexity theory to economics Chaos theory, the study… …   Wikipedia

  • compLexity — Kürzel coL Manager Vereinigte Staaten Jason „1“ Lake …   Deutsch Wikipedia

  • Complexity — Com*plex i*ty, n.; pl. {Complexities}. [Cf. F. complexit[ e].] 1. The state of being complex; intricacy; entanglement. [1913 Webster] The objects of society are of the greatest possible complexity. Burke. [1913 Webster] 2. That which is complex;… …   The Collaborative International Dictionary of English

  • complexity — complexity. См. сложность генома. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • complexity — index complication, confusion (turmoil), enigma, entanglement (confusion), imbroglio, impasse …   Law dictionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”