15 citations · 26 across the 9 of their papers we have counts for
9 papers · 1 filter
The non-symplectic index of supersingular K3 surfaces
Junmyeong Jang
In this paper, we found non-symplectic index of all supersingular K3 surfaces defined over a field of characteristic p>3.
A non-symplectic automorphism of order 21 of a K3 surface
Junmyeong Jang
In this paper, we prove that, over an algebraically closed field whose characteristic is not 2,3 nor 7, a pair of a K3 surface and a purely non-symplectic automorphism of order 21…
A lifting of an automorphism of a K3 surface over odd characteristic
Junmyeong Jang
In this paper, we prove that, over an algebraically closed field of odd characteristic, a weakly tame automorphism of a K3 surface of finite height can be lifted over the ring of W…
The representations of the automorphism groups and the Frobenius invariants of K3 surfaces
Junmyeong Jang
For a K3 surface over an algebraically closed field of odd characteristic, the representation of the automorphism group on the global two forms is finite. If the K3 surface is supe…
Neron-Severi group preserving lifting of K3 surfaces and applications
Junmyeong Jang
For a K3 surface of finite height over a field of odd characteristic, there exists a smooth lifting to the ring of Witt vectors such that the reduction map from the Picard group of…
An Enriques involution of a supersingular K3 surface over odd characteristic
Junmyeong Jang
In this paper, we prove, as the complex case, a supersingular K3 surface over a field of odd characteristic has an Enriques involution if and only if there exists a primitive embed…