warning: The contents of the following ps files might be different from the actual printed papers. (This is because docky made the ps files from old dvi files gathered from a hard drive.)

On the coordinate free description of the conformal blocks
(link to projecteuclid.org)

Journal of mathematics of Kyoto university 33-1 (1993) 29 -- 49

On super theta functions (link to projecteuclid.org)

Journal of mathematics of Kyoto university 34-3 (1994) 643 -- 696

A Grothendieck Topology of a subcategory of
opposite category of non commutative algebras(pdf)

A Grothendieck Topology of a subcategory of
opposite category of non commutative algebras(ps)

Memoirs of the Faculty of Science Kochi University (Series A Mathematics),
18(1997) 59 -- 80

Constructions on non commutative schemes(pdf)

Constructions on non commutative schemes(ps)

Memoirs of the Faculty of Science Kochi University.(Series A Mathematics),
19(1998)85-95

On some examples of noncommutative deformations of surfaces
(pdf)
(written in Japanese)

On some examples of noncommutative deformations of surfaces
(ps)(written in Japanese)

Preliminaries on Dixmier conjecture(pdf)

Preliminaries on Dixmier conjecture(ps)

Memoirs of the Faculty of Science Kochi University.(Series A Mathematics),
24(2003)43-59

Endomorphsims of Weyl algebra and p-curvatures
(link to projecteuclid.org)

Osaka Journal of Mathematics Volume 42, Number 2 (June 2005)
(Submitted October 9, 2003)

(There is a small (sign) mistake in the paper above.
Please consult
my correction (in pdf format)
or
my correction (in ps format))

Non commutative algebraic spaces of finite type over Dedekind domains
(link to projecteuclid.org

J. Math. Kyoto Univ. Volume 46, Number 3 (2006)

Equations in p-curvature and intertwiners
(link to projecteuclid.org)

Osaka J.~Math. Volume 45, Number 3 (2008)

Reflexive modules of rank one over Weyl algebras of
non-zero characteristics

Kyushu J.Math. , Volume 65, Number 2 (2011)

Norm based extension of reflexive modules over Weyl algebras

Tohoku J. Math., Volume 64, Number (2012)