33 citations · 315 across the 87 of their papers we have counts for
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K3 surfaces via almost-primes
Keiji Oguiso
Based on the result on derived categories on K3 surfaces due to Mukai and Orlov and the result concerning almost-prime numbers due to Iwaniec, we remark the following fact: For any…
The dual Kaehler cone of compact Kaehler threefolds
Keiji Oguiso, Thomas Peternell
We consider a compact Kaehler manifold whose dual Kaehler cone contains a rational interior point. The general problem we have in mind is how far the manifold is from being project…
Automorphism groups in a family of K3 surfaces
Keiji Oguiso
A few facts concerning the phrase "the automorphism groups become larger at special points of the moduli of K3 surfaces" are presented. It is also shown that the automorphism group…
Some remarks on the universal cover of an open K3 surface
Fabrizio Catanese, JongHae Keum, Keiji Oguiso
We shall give, in an optimal form, a sufficient numerical condition for the finiteness of the fundamental group of the smooth locus of a normal K3 surface. We shall moreover prove…