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On Log ℚ-Homology Planes and Weighted Projective Planes

Published online by Cambridge University Press:  20 November 2018

Daniel Daigle  and
Peter Russell
Daniel Daigle
Affiliation:
Department of Mathematics and Statistics, University of Ottawa, Ottawa, ON, K1N 6N5 e-mail: [email protected]
Peter Russell
Affiliation:
Department of Mathematics and Statistics, McGill University, Montréal, QC, H3A 2K6 e-mail: [email protected]
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Abstract

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We classify normal affine surfaces with trivial Makar-Limanov invariant and finite Picard group of the smooth locus, realizing them as open subsets of weighted projective planes. We also show that such a surface admits, up to conjugacy, one or two ${{G}_{a}}$-actions.

Keywords

14R0514J2614R20
Type
Research Article
Information
Canadian Journal of Mathematics , Volume 56 , Issue 6 , 01 December 2004 , pp. 1145 - 1189
Copyright
Copyright © Canadian Mathematical Society 2004

References

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