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math.AG2009
Generalized Zariski-van Kampen theorem and its application to Grassmannian dual varieties
Ichiro Shimada
We formulate and prove a generalization of Zariski-van Kampen theorem on the topological fundamental groups of smooth complex algebraic varieties. As an application, we prove a hyp…
math.AG2009★ 4 cited
Lattice Zariski k-ples of plane sextic curves and Z-splitting curves for double plane sextics
Ichiro Shimada
A simple sextic is a reduced complex projective plane curve of degree 6 with only simple singularities. We introduce a notion of Z-splitting curves for the double covering of the p…