3 citations · 4 across the 6 of their papers we have counts for
6 papers
Smooth quotients of bi-elliptic surfaces
Hisao Yoshihara
We consider the quotient X of bi-elliptic surface by a finite automorphism group. If X is smooth, then it is a bi-elliptic surface or ruled surface with irregularity one. As a coro…
Galois lines for space elliptic curve with j=12^3
Mitsunori Kanazawa, Hisao Yoshihara
The V_4-lines for each linearly normal space elliptic curve form the edges of a tetrahedron, however in case the elliptic curve has j=12^3, there exist Z_4-lines in addition. We sh…
Sextic variety as Galois closure variety of smooth cubic
Hisao Yoshihara
Let V be a nonsingular projective algebraic variety of dimension n. Suppose there exists a very ample divisor D such that D^n=6 and dim H^0(V, O(D))=n+3. Then, (V, D) defines a D_6…
Galois group at Galois point for genus-one curve
Mitsunori Kanazawa, Hisao Yoshihara
We show all the possible structures of finite subgroups of the automorphism groups of elliptic curves. Here the automorphism means the biholomorphic transformation. Using the resul…
Galois embedding of K3 surface --abelian case--
Hisao Yoshihara
We study Glois embeddings of K3 surfaces in the case where the Galois groups are abelian. We show several properties of K3 surfaces concerning the Galois embeddings. In particular,…
Galois lines for normal elliptic space curves, II
Hisao Yoshihara
For each linearly normal elliptic curve in , we determine Galois lines and their arrangement. The results are as follows: the curve has just six -lines an…