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Nielsen realization problem information


The Nielsen realization problem is a question asked by Jakob Nielsen (1932, pp. 147–148) about whether finite subgroups of mapping class groups can act on surfaces, that was answered positively by Steven Kerckhoff (1980, 1983).

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Nielsen realization problem

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The Nielsen realization problem is a question asked by Jakob Nielsen (1932, pp. 147–148) about whether finite subgroups of mapping class groups can act...

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Earthquake map

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(1983), who used it to solve the Nielsen realization problem. Kerckhoff, Steven P. (1983), "The Nielsen realization problem", Annals of Mathematics, Second...

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List of incomplete proofs

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it is not negatively curved. The Nielsen realization problem was finally solved in 1980 by Kerckhoff. Yamabe problem. Yamabe claimed a solution in 1960...

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Steven Kerckhoff

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most famous results is his resolution of the Nielsen realization problem, a 1932 conjecture by Jakob Nielsen. Along with William J. Floyd, he wrote large...

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List of theorems

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Nielsen fixed-point theorem (fixed points) Nielsen–Ninomiya theorem (quantum field theory) Nielsen realization problem (geometric topology) Nielsen–Schreier...

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Quantum computing

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& Horowitz 2019, p. 114. Nielsen & Chuang 2010, p. 29. Nielsen & Chuang 2010, p. 126. Nielsen & Chuang 2010, p. 41. Nielsen & Chuang 2010, p. 201. Bernstein...

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Fermion doubling

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fermion doubling problem is intractably linked to chiral invariance by the Nielsen–Ninomiya theorem. Most strategies used to solve the problem require using...

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Riemann hypothesis

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the quantization would be a realization of the Hilbert–Pólya program. In a connection with this quantum mechanical problem Berry and Connes had proposed...

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List of Petticoat Junction episodes

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Regardless of Walter's intentions, his being there makes Sam come to the realization that he too has feelings for Kate. Walter proposes to Kate, but she turns...

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List of Northern Exposure episodes

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2, 1991. p. D3. "Nielsen ratings". USA Today. October 9, 1991. p. D3. "Nielsen ratings". USA Today. October 16, 1991. p. D3. "Nielsen ratings". USA Today...

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String theory

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string theory that was fully non-perturbative and a concrete mathematical realization of the holographic principle. It is an example of a gauge-gravity duality...

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Hypnagogia

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hypnagogic state can provide insight into a problem, the best-known example being August Kekulé’s realization that the structure of benzene was a closed...

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List of Felicity episodes

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"National Nielsen Viewership (Sept. 28-Oct. 4)". The Los Angeles Times. October 7, 1998. Retrieved May 9, 2021 – via Newspapers.com. "National Nielsen Viewership...

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Friends season 10

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Collider. "National Nielsen Viewership (Sept. 22–28)". Los Angeles Times. October 1, 2003. Retrieved May 22, 2021 – via Newspapers.com. "Nielsen Report (September...

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List of Girlfriends episodes

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"National Nielsen Viewership (Sept. 11-17, 2000)". The Los Angeles Times. September 20, 2000. Retrieved May 12, 2023 – via Newspapers.com. "National Nielsen Viewership...

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History of string theory

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behavior—it should fall off exponentially quickly at large angles. With this realization, theorists hoped to construct a theory of composite particles on Regge...

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Quantum error correction

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Jost, J. D.; Knill, E.; Langer, C.; Ozeri, R.; Wineland, D. J. (2004). "Realization of quantum error correction". Nature. 432 (7017): 602–605. Bibcode:2004Natur...

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Polis

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or free, of any age. The discovery of reciprocal equality brought the realization that in the supposedly synoecized polis a large amount of unsynoecized...

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Ang Probinsyano season 9

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(Mon) AGB Nielsen NUTAM". Retrieved September 3, 2021. "Aug 24 (Tue) AGB Nielsen NUTAM". Retrieved September 3, 2021. "Aug 25 (Wed) AGB Nielsen NUTAM"....

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SpongeBob SquarePants season 4

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2005) (Report). Nielsen Media Research. Nickelodeon Ratings Report (October 31–November 6, 2005) (Report). Nielsen Media Research. Nielsen Media Research...

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Sensory processing

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are culminating to the formation of spatial maps in the brain and the realization that "Hey, that thing that's moving this object is actually a part of...

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Stupidity

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Haar of Film Threat, "...each laugh is tempered with the unsettling realization that [Judge's] vision of mankind's future might not be too far off the...

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History of artificial intelligence

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than they ever had in the past. There was a widespread realization that many of the problems that AI needed to solve were already being worked on by...

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