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math.AG2010
A homology plane of general type can have at most a cyclic quotient singularity
R. V. Gurjar, M. Koras, M. Miyanishi +1
We show that a homology plane of general type has at worst a single cyclic quotient singular point. An example of such a surface with a singular point does exist. We also show that…
math.AG2010★ 4 cited
Singular Q-homology planes of negative Kodaira dimension have smooth locus of non-general type
Karol Palka, Mariusz Koras
We continue the program of classification of normal Q-acyclic surfaces defined over the field of complex numbers, so-called 'Q-homology planes'. Here we show that if a Q-homology p…