5 papers
Deformations of Zappatic stable surfaces and their Galois covers
Meirav Amram, Cheng Gong, JiaLi Mo
This paper considers some algebraic surfaces that can deform to planar Zappatic stable surfaces with a unique singularity of type En. We prove that the Galois covers of these surfa…
The Mordell Weil Groups of Cubic Pencils
Jia-Li Mo
In this paper we study the influences of the base points of cubic pencils on the Mordell-Weil groups. Specifically, we investigate and classify the cubic pencils with 8, 7 and 6 ba…
On Galois covers of a union of Zappatic surfaces of type
Meirav Amram, Cheng Gong, Jia-Li Mo
We investigate the topological structures of Galois covers of a union of two Zappatic surfaces of type . We prove that the Galois covers of such surfaces are simply-connected…
A note on a question of Shioda about integral sections
Jia-Li Mo
We consider a rational elliptic surface with a relatively minimal fibration. We compute the number of integral sections in the above rational elliptic surface. As an application, w…
On the Galois covers of degenerations of surfaces of minimal degree
Meirav Amram, Cheng Gong, Jia-Li Mo
We investigate the topological structures of Galois covers of surfaces of minimal degree (i.e., degree n) in n+1 dimensional complex projective space. We prove that for n is greate…