4 papers
Topological and arithmetic characteristics about products of projective lines with complex tori
Jia-Li Mo, Meirav Amram, Cheng Gong
In this paper, we study non-planar degeneracies with cylindrical configurations. They could be constructed by the product of the projective plane and a com…
The regularity of monomial ideals and their integral closures
Yijun Cui, Cheng Gong, Guangjun Zhu
Let be a monomial ideal in a polynomial ring over a field with or , and let be its integral closure. We will show that $\text{…
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…
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…