Research output: Contribution to journal › Article › peer-review
Mirror configurations of points and lines and algebraic surfaces of degree four. / Podkorytov, S. S.
In: Journal of Mathematical Sciences , Vol. 91, No. 6, 01.01.1998, p. 3526-3531.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Mirror configurations of points and lines and algebraic surfaces of degree four
AU - Podkorytov, S. S.
PY - 1998/1/1
Y1 - 1998/1/1
N2 - We prove that mirror nonsingular configurations of m points and n lines in ℝP3 exist only for m ≤ 3, n ≡ 0 or 1 (mod 4) and for m = 0 or 1 (mod 4), n ≡ 0 (mod 2). In addition, we give an elementary proof of V. M. Kharlamov's well-known result saying that if a nonsingular surface of degree four in ℝP3 is noncontractible and has M ≥ 5 components, then it is nonmirror. For the cases M = 5, 6, 7, and 8, Kharlamov suggested an elementary proof using an analogy between such surfaces and configurations of M -1 points and a line. Our proof covers the remaining cases M = 9, 10.
AB - We prove that mirror nonsingular configurations of m points and n lines in ℝP3 exist only for m ≤ 3, n ≡ 0 or 1 (mod 4) and for m = 0 or 1 (mod 4), n ≡ 0 (mod 2). In addition, we give an elementary proof of V. M. Kharlamov's well-known result saying that if a nonsingular surface of degree four in ℝP3 is noncontractible and has M ≥ 5 components, then it is nonmirror. For the cases M = 5, 6, 7, and 8, Kharlamov suggested an elementary proof using an analogy between such surfaces and configurations of M -1 points and a line. Our proof covers the remaining cases M = 9, 10.
UR - http://www.scopus.com/inward/record.url?scp=54749144020&partnerID=8YFLogxK
U2 - 10.1007/BF02434931
DO - 10.1007/BF02434931
M3 - Article
AN - SCOPUS:54749144020
VL - 91
SP - 3526
EP - 3531
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
IS - 6
ER -
ID: 49886766