1. On interior regularity and Liouville's theorem
for harmonic mappings,
Manuscripta Math. 42 (1983)
p.11--p.40.
2. Boundary regularity for minima of certain
variational integrals,
Tokyo J. Math. 7 (1984) p.147--p.156.
3. Rotationally symmetric harmonic maps
from a ball into a warped product manifold,
Manuscripta Math. 53 (1985) p.235--p.254.
4. A regularity theorem for harmonic
mapping,
J. Reine Angew. Math. 377 (1987) p.1--p.11.
5. A non-existence result for harmonic
mappings from $R^n$ into $H^ｎ$ ,
Tokyo J. Math. 11 (1988) p.311--p.316.
6. Harmonic mappings from Rn into an Hadamard
manifold,
J. Math. Soc. Japan 42 (1990) p.147--p.153.
7. Harmonic maps from a Riemannian
manifold with a pole into an Hadamard manifold with negative sectional
curvatures,
Manuscripta Math. 74 (1992) p.69--p.81.
8. Nonexistence results for harmonic
maps between noncompact complete Riemannian manifolds,
(with Kazuo AKUTAGAWA )
Tokyo J. Math. 16 (1993) p.131--p.145.
9. Harmonic maps of unbounded convex
polygons in the hyperbolic plane,
(with Kazuo AKUTAGAWA, and Seiki NISHIKAWA)
Geometry and its Applications, proceedings of the workshop in honor
of Morio Obata,
ed. by M.Kanai, T.Nagano, Y.Maeda & H.Omori, World Scientific
(1993) p.17--p.19.
10. A variational approach to constructing
weak solutions of semilinear hyperbolic systems,
Adv. Math. Sci. Appl. 4 (1994)
p.93--p.103.
11. Existence and asymptotic behavior of weak
solutions to strongly damped semilinear hyperbolic system,
(with Takeyuki NAGASAWA)
Hokkaido Math. J. 24 (1995) p.387--p.405.
12. Existence and asymptotic behavior of weak
solutions to semilinear hyperbolic systems with damping terms,
(with Takeyuki NAGASAWA)
Tsukuba J. Math. 20 (1996), p.51--p.64.
13. Weak solutions of a semilinear hyperbolic
system on a nondecreasing domain,
(with Takeyuki NAGASAWA)
Math. Methods Appl. Sci. 19 (1996), 1303-1316.
14. Weak solutions for the evolution problems
of harmonic maps on nondecreasing domains,
GAKUTO International Series, Mathematical Science and Applications
10 Nonlinear Waves (1997), 475-480.
15. Weak solution to evolution problems of
harmonic maps from noncompact manifolds.
Rend. Mat. Appl. Serie VII 19
(1999), 353--366.
16. Blow-up solutions for ordinary
differential equations associated to harmonic maps and its applications,
(with Takeyuki NAGASAWA )
J. Math. Soc. Japan 53 (2001),
485--500.
17. Existence and regularity results for
harmonic maps with potential,
Tokyo J. Math. 24 (2001)
195--204.
18. Existence and regularity results for some
variational problems related to harmonic maps.
Nonlinear Anal. 47 (2001) 1703--1714.
19. A
regularity result for harmonic maps into a Finsler manifold.
Cal. Var. 16 (2003) 217--224. (Erratum,
Calc. Var. 16 (2003),
225--226.)
20. On continuity of
minimizers for certain quadratic functionals,
(with Maria Alessandra Ragusa)
J. Math. Soc. Japan 57 (3) (2005), 691--700.
21. Partial
regularity of the minimizers of quadratic functionals with VMO
coefficients.
(with Maria Alessandra Ragusa)
J. Lond. Math. Soc., II. Ser. 7 (3) (2005) 609--620.
23. Partial regularity results up to the
boundary for harmonic maps into a
Finsler manifold.
Ann. I. H. Poincar\'{e}, 26 (2009) 1953--1970.