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The Nash conjecture for threefolds
Author:
János Kollár
Journal:
Electron. Res. Announc. Amer. Math. Soc. 4 (1998), 63-73
MSC (1991):
Primary 14P25
Posted:
September 15, 1998
MathSciNet review:
1641168
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Abstract: Nash conjectured in 1952 that every compact differentiable manifold can be realized as the set of real points of a real algebraic variety which is birational to projective space. This paper announces the negative solution of this conjecture in dimension 3. The proof shows that in fact very few 3-manifolds can be realized this way.
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-manifolds, Pacific J. Math. 150 (1991), 201-204. MR 93c:57028
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- A. Comessatti, Sulla connessione delle superfizie razionali reali, Annali di Math. 23(3) (1914), 215-283.
- [Cutkosky88]
- S. D. Cutkosky, Elementary contractions of Gorenstein threefolds, Math. Ann. 280 (1988), 521-525. MR 89k:14070
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-manifolds, Princeton Univ. Press, 1976. MR 54:3702
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-Fano threefolds, Proc. Int. Conf. Algebra, Contemp. Math. vol. 131 (1992), 439-445. MR 93g:14047
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- Y. Kawamata, Divisorial contractions to
-dimensional terminal quotient singularities, in Higher dimensional complex varieties (Trento, 1994), de Gruyter, (1996), 241-246. MR 98g:14005
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- S. Keel and J. McKernan, Rational curves on quasi-projective varieties, Mem. AMS (to appear). CMP 98:09
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of degree four, Funct. Anal. Appl. 10 (1976), 295-305. MR 56:8584
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- J. Kollár, Effective Base Point Freeness, Math. Ann. 296 (1993), 595-605. MR 94f:14004
- [Kollár96]
- J. Kollár, Rational Curves on Algebraic Varieties, Springer-Verlag, Ergebnisse der Math. vol. 32, 1996. MR 98c:14001
- [Kollár97]
- J. Kollár, Real Algebraic Threefolds I. Terminal Singularities, Collectanea Math. (to appear).
- [Kollár98a]
- J. Kollár, Real Algebraic Threefolds II. Minimal Model Program, J. AMS (to appear).
- [Kollár98b]
- J. Kollár, Real Algebraic Threefolds III. Conic Bundles (preprint).
- [Kollár98c]
- J. Kollár, Real Algebraic Threefolds IV. Del Pezzo Fibrations (in preparation).
- [KoMiMo92]
- J. Kollár, Y. Miyaoka and S. Mori, Rationally Connected Varieties, J. Alg. Geom. 1 (1992), 429-448. MR 93i:14014
- [Kollár-Mori98]
- J. Kollár and S. Mori, Birational geometry of algebraic varieties, Cambridge Univ. Press, 1998 (to appear).
- [Manetti91]
- M. Manetti, Normal degenerations of the complex projective plane, J. f.r.u.a. Math. 419 (1991), 89-118. MR 92f:14028
- [Manetti93]
- M. Manetti, Normal projective surfaces with
, Rend. Sem. Mat. Univ. Padova 89 (1993), 195-205. MR 94k:14027
- [Mikhalkin97]
- G. Mikhalkin, Blowup equivalence of smooth closed manifolds, Topology, 36 (1997), 287-299. MR 98f:57046
- [Mori82]
- S. Mori, Threefolds whose Canonical Bundles are not Numerically Effective, Ann. of Math. 116 (1982), 133-176. MR 84e:14032
- [Nash52]
- J. Nash, Real algebraic manifolds, Ann. Math. 56 (1952), 405-421. MR 14:403b
- [Reid85]
- M. Reid, Young person's guide to canonical singularities, in Algebraic Geometry, Proc. Symp. Pure Math. vol. 46, pp. 345-414. MR 89b:14016
- [Reid94]
- M. Reid, Nonnormal Del Pezzo surfaces, Publ. RIMS Kyoto Univ. 30 (1994), 695-728. MR 96a:14042
- [Rolfsen76]
- D. Rolfsen, Knots and links, Publish or Perish, 1976. MR 58:24236, MR 95c:57018
- [Scott83]
- P. Scott, The geometries of
-manifolds, Bull. London Math. Soc., 15 (1983), 401-487. MR 84m:57009
- [Shafarevich72]
- R. I. Shafarevich, Basic Algebraic Geometry (in Russian), Nauka, 1972. English translation: Springer, 1977,
nd edition, 1994. MR 51:3162; MR 56:5538; MR 95m:14001; MR 95m:14002
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- A. Tognoli, Su una congettura di Nash, Ann. Scuola Norm. Sup. Pisa 27 (1973), 167-185. MR 53:434
- [Viterbo98]
- C. Viterbo, (personal communication).
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Additional Information
János Kollár
Affiliation:
University of Utah, Salt Lake City, UT 84112
Email:
kollar@math.utah.edu
DOI:
http://dx.doi.org/10.1090/S1079-6762-98-00049-3
PII:
S 1079-6762(98)00049-3
Received by editor(s):
July 17, 1998
Posted:
September 15, 1998
Communicated by:
Robert Lazarsfeld
Article copyright:
© Copyright 1998 American Mathematical Society
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