GEOMETRIC INVARIANT THEORY FOR HOLOMORPHIC FOLIATIONS ON CP2 OF DEGREE 2
Glasgow mathematical journal, Tome 53 (2011) no. 1, pp. 153-168
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Let 2 be the space of the holomorphic foliations on CP2 of degree 2. In this paper we study the linear action PGL(3, C) × 2 → 2 given by gX = DgX ^(g−1) in the sense of the Geometric Invariant Theory. We obtain a characterisation of unstable and stable foliations according to properties of singular points and existence of invariant lines. We also prove that if X is an unstable foliation of degree 2, then X is transversal with respect to a rational fibration. Finally we prove that the geometric quotient of non-degenerate foliations without invariant lines is the moduli space of polarised del Pezzo surfaces of degree 2.
ALCÁNTARA, CLAUDIA R. GEOMETRIC INVARIANT THEORY FOR HOLOMORPHIC FOLIATIONS ON CP2 OF DEGREE 2. Glasgow mathematical journal, Tome 53 (2011) no. 1, pp. 153-168. doi: 10.1017/S0017089510000674
@article{10_1017_S0017089510000674,
author = {ALC\'ANTARA, CLAUDIA R.},
title = {GEOMETRIC {INVARIANT} {THEORY} {FOR} {HOLOMORPHIC} {FOLIATIONS} {ON} {CP2} {OF} {DEGREE} 2},
journal = {Glasgow mathematical journal},
pages = {153--168},
year = {2011},
volume = {53},
number = {1},
doi = {10.1017/S0017089510000674},
url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089510000674/}
}
TY - JOUR AU - ALCÁNTARA, CLAUDIA R. TI - GEOMETRIC INVARIANT THEORY FOR HOLOMORPHIC FOLIATIONS ON CP2 OF DEGREE 2 JO - Glasgow mathematical journal PY - 2011 SP - 153 EP - 168 VL - 53 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.1017/S0017089510000674/ DO - 10.1017/S0017089510000674 ID - 10_1017_S0017089510000674 ER -
%0 Journal Article %A ALCÁNTARA, CLAUDIA R. %T GEOMETRIC INVARIANT THEORY FOR HOLOMORPHIC FOLIATIONS ON CP2 OF DEGREE 2 %J Glasgow mathematical journal %D 2011 %P 153-168 %V 53 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089510000674/ %R 10.1017/S0017089510000674 %F 10_1017_S0017089510000674
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