Ryo OHKAWA 
Ryo OHKAWA
Department of Mathematics,
Graduate School of Science, Kobe University 
Division : Algebra
Assistant Professor 
Building B, Room 424

Research Field :
Moduli space of vector bundles on algebraic surfaces


Research Summary :
I study moduli space of vector bundles on algebraic surfaces,
especially the projective plane. Recently, I am investigating the
functional equation of the Nekrasov function using wallcrossing
formula by Takuro Mochizuki.


Primary Publications : 

N. Hara and R. Ohkawa, The FFRT property of twodimensional normal
graded rings and orbifold curves, Adv. Math. 370 (2020), 107215, 37pp.

R. Ohkawa, Functional Equations of Nekrasov Functions Proposed by Ito,
Maruyoshi, and Okuda, Moscow Math. J. 20 (2020), no. 3, 531573.

R. Ohkawa, Wallcrossing between stable and costable ADHM data, Lett.
Math. Phys. 108 (2018), no. 6, 14851523.

R. Ohkawa, Flips of moduli of stable torsion free sheaves with $c_1=1$
on $＼PP^2$, Bull. Soc. Math. France 142 (2014), no. 3, 349378.

R. Ohkawa and H. Uehara, Frobenius morphisms and derived categories on
two dimensional toric DeligneMumford stacks, Adv. Math. 244 (2013),
241267.

R. Ohkawa, Moduli of Bridgeland semistable objects on $＼PP^2$, Kodai
Math. J. 33 (2010), no. 2, 329366.


