53 citations · 381 across the 79 of their papers we have counts for
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math.AG2004★ 6 cited
K3 surfaces with ten cusps
Ichiro Shimada, De-Qi Zhang
We show that normal K3 surfaces with ten cusps exist in and only in characteristic 3. We determine these K3 surfaces according to the degrees of the polarizations. Explicit example…
math.AG2004
Niemeier Lattices and K3 Groups
De-Qi Zhang
In this note, we consider K3 surfaces X with an action by the alternating group A_5. We show that if a cyclic extension A_5 . C_n acts on X then n = 1, 2, or 4. We also determine t…
math.AG2004★ 2 cited
Extensions of the alternating group of degree 6 in the geometry of K3 surfaces
JongHae Keum, Keiji Oguiso, De-Qi Zhang
We shall determine the uniquely existing extension of the alternating group of degree 6 (being normal in the group) by a cyclic group of order 4, which can act on a complex K3 surf…