Abstract
We give an upper bound of the slope for finite cyclic covering fibrations of an elliptic surface which includes bielliptic fibrations. We also give an upper bound of the slope for triple cyclic covering fibrations of a ruled surface and hyperelliptic fibrations, which provides a new proof of Xiao's upper bound.
Citation
Makoto ENOKIZONO. "Upper bounds on the slope of certain fibered surfaces." J. Math. Soc. Japan 75 (2) 417 - 467, April, 2023. https://doi.org/10.2969/jmsj/86278627
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