On deformations of singular plane sextics
Author:
Alex Degtyarev
Journal:
J. Algebraic Geom. 17 (2008), 101-135
DOI:
https://doi.org/10.1090/S1056-3911-07-00469-9
Published electronically:
August 6, 2007
MathSciNet review:
2357681
Full-text PDF
Abstract |
References |
Additional Information
Abstract: We study complex plane projective sextic curves with simple singularities up to equisingular deformations. It is shown that two such curves are deformation equivalent if and only if the corresponding pairs are diffeomorphic. A way to enumerate all deformation classes is outlined, and a few examples are considered, including classical Zariski pairs; in particular, promising candidates for homeomorphic but not diffeomorphic pairs are found.
References
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References
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- A. Degtyarev, Classification of quartio surfaces having a nonsimple singular point, Izv. Akad. Nauk SSSR Ser. Mat. 53 (1989), no. 6, 1269–1290, 1337–1338 (Russian); English transl. in. Math. USSR-Izv. 35 (1990) no. 3, 607–627. MR 1039964 (91a:14018)
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- V. V. Nikulin and S. Saito, Real $K3$-surfaces with non-symplectic involution and applications, Proc. London Math. Soc. 90 (2005), 591-654. MR 2137825 (2006b:14063)
- H. Tokunaga, Some examples of Zariski pairs arising from certain elliptic $K3$-surfaces. II. Degtyarev’s conjecture, Math. Z. 230 (2) (1999), 389–400. MR 1676710 (2000b:14044)
- T. Urabe, Combinations of Rational Singularities on Plane Sextic Curves with the Sum of Milnor Numbers Less than Sixteen, Singularities (Warsaw, 1985), Banach Center Publ., vol. 20, PWN, Warsaw, 1988, pp. 429–456. MR 1101859 (92g:14025)
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- J.-G. Yang, Sextic curves with simple singularities, Tohoku Math. J. (2) 48 (1996), no. 2, 203–227. MR 1387816 (98e:14026)
- O. Zariski, On the irregularity of cyclic multiple planes, Ann. Math. 32 (1931), 485–511. MR 1503012
Additional Information
Alex Degtyarev
Affiliation:
Department of Mathematics, Bilkent University, 06800 Ankara, Turkey
MR Author ID:
271103
ORCID:
0000-0001-6586-4094
Email:
degt@fen.bilkent.edu.tr
Received by editor(s):
December 8, 2005
Received by editor(s) in revised form:
November 27, 2006
Published electronically:
August 6, 2007