Details
Original language | English |
---|---|
Pages (from-to) | 146-185 |
Number of pages | 40 |
Journal | Izvestiya mathematics |
Volume | 84 |
Issue number | 1 |
Publication status | Published - 2020 |
Externally published | Yes |
Abstract
We study effective divisors D on surfaces with H0(OD) = k and H1(OD) = H0(OD(D)) = 0. We give a numerical criterion for such divisors, following a general investigation of negativity, rigidity and connectivity properties. Examples include exceptional loci of rational singularities, and spherelike divisors.
Keywords
- Divisors on surfaces, Negative divisors, Rigid divisors, Spherelike sheaves
ASJC Scopus subject areas
- Mathematics(all)
- General Mathematics
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In: Izvestiya mathematics, Vol. 84, No. 1, 2020, p. 146-185.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Rigid divisors on surfaces
AU - Hochenegger, Andreas
AU - Ploog, David
N1 - Publisher Copyright: © 2020 Russian Academy of Sciences.
PY - 2020
Y1 - 2020
N2 - We study effective divisors D on surfaces with H0(OD) = k and H1(OD) = H0(OD(D)) = 0. We give a numerical criterion for such divisors, following a general investigation of negativity, rigidity and connectivity properties. Examples include exceptional loci of rational singularities, and spherelike divisors.
AB - We study effective divisors D on surfaces with H0(OD) = k and H1(OD) = H0(OD(D)) = 0. We give a numerical criterion for such divisors, following a general investigation of negativity, rigidity and connectivity properties. Examples include exceptional loci of rational singularities, and spherelike divisors.
KW - Divisors on surfaces
KW - Negative divisors
KW - Rigid divisors
KW - Spherelike sheaves
UR - http://www.scopus.com/inward/record.url?scp=85066446710&partnerID=8YFLogxK
U2 - 10.1070/IM8721
DO - 10.1070/IM8721
M3 - Article
AN - SCOPUS:85066446710
VL - 84
SP - 146
EP - 185
JO - Izvestiya mathematics
JF - Izvestiya mathematics
SN - 1064-5632
IS - 1
ER -