scholarly journals Cycle Double Covers and Integer Flows

2020 ◽  
Author(s):  
ZHANG ZHANG
Keyword(s):  
Double Covers ◽  
Integer Flows

Double cover K3 surfaces of Hirzebruch surfaces

2021 ◽  
Vol 21 (2) ◽  
pp. 221-225
Author(s):  
Taro Hayashi
Keyword(s):  
Rational Surface ◽  
K3 Surfaces ◽  
Double Cover ◽  
Double Covering ◽  
Smooth Surfaces ◽  
Branch Locus ◽  
Hirzebruch Surfaces ◽  
Double Covers

Abstract General K3 surfaces obtained as double covers of the n-th Hirzebruch surfaces with n = 0, 1, 4 are not double covers of other smooth surfaces. We give a criterion for such a K3 surface to be a double covering of another smooth rational surface based on the branch locus of double covers and fibre spaces of Hirzebruch surfaces.

scholarly journals Varieties of minimal rational tangents on double covers of projective space

2012 ◽  
Vol 275 (1-2) ◽  
pp. 109-125 ◽  
Author(s):  
Jun-Muk Hwang ◽  
Hosung Kim
Keyword(s):  
Projective Space ◽  
Double Covers

Orthogonal double covers by super-extendable cycles

2002 ◽  
Vol 10 (5) ◽  
pp. 283-293 ◽  
Author(s):  
Christian Bey ◽  
Sven Hartmann ◽  
Uwe Leck ◽  
Volker Leck
Keyword(s):  
Double Covers

Double Covers of Some Fano Manifolds as Hyperplane Sections

1998 ◽  
Vol 193 (1) ◽  
pp. 93-110
Author(s):  
Antonio Lanteri ◽  
Gianluca Occhetta
Keyword(s):  
Fano Manifolds ◽  
Double Covers ◽  
Hyperplane Sections

Integer Flows and Modulo Orientations of Signed Graphs

2021 ◽  
Vol 35 (1) ◽  
pp. 376-391
Author(s):  
Miaomiao Han ◽  
Jiaao Li ◽  
Rong Luo ◽  
Yongtang Shi ◽  
Cun-Quan Zhang
Keyword(s):  
Signed Graphs ◽  
Integer Flows
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