2007

Date : November 14 (Wed) 16:30 - 18:00

Place : B701 Math. Dept., Fac. Sci., Hiroshima University

Speaker : Yoshishige HARAOKA (Kumamoto University)

Title : On computability of the monodromy for regular holonomic systems

Date : October 3 (Wed) 16:30 - 18:00

Place : C808 Fac. Integrated Art Sci., Hiroshima University

Speaker : Yoshihiro SAWANO (Tokyo Metropolitan University)

Title : On the boundedness of fractional integral operators (joint work with T. Sobukawa and H. Tanaka)

Date : August 8 (Wed) 10:30 - 12:00

Place : C808 Fac. Integrated Art Sci., Hiroshima University

Speaker : Takahide KUROKAWA (Kagoshima University)

Title : Partial primitives, polyprimitives and decomposition of a C^∞-class

Date : July 18 (Wed) 16:30 - 18:00

Place : C808 Fac. Integrated Art Sci., Hiroshima University

Speaker : Peter HÄSTÖ (University of Oulu)

Title : Sobolev inequalities for variable exponents attaining the values 1 and n

Abstract:

We consider Sobolev emdeddings in variable exponent spaces for exponents satisfying 1≤ p ≤ n in a bounded domain. We combine weak- and strong-type estimates, and use a new variable exponent target space scale which features a space of exponential type integrability instead of L¹ at the upper end.

Date : July 13 (Fri) 16:30 - 18:00

Place : C808 Fac. Integrated Art Sci., Hiroshima University

Speaker : Vladimir N. DUBININ (RAS, FEB)

Title : Symmetrization of condensers with applications in geometric function theory

Abstract:

First, the definitions of polarization and dissymmetrization of sets and condensers in n-space are given. We consider sketched proofs of principal theorems about behaviour of the various capacities of condensers under these and other transformations. As an application, the solutions of Vuorinen's problem on n-modulus of a family of curves in n-space, Gonchar's minimal capacity problem and others are obtained. Second, the simplest case of the piecewise separating symmetrization of plane condensers are considered. We prove theorems about behaviour of conformal capacity and the inner radius under the separating transformation. As an application, certain classical and recent problems of geometric function theory are solved. Also, other types of symmetrization on the plane are discussed.

Date : June 6(Wed) 16:30 - 18:00

Place : B707 Math. Dept., Fac. Sci., Hiroshima University

Speaker : Takeo OHSAWA (Nagoya Univ.)

Title : Construction of functions along Riemann surfaces and its application

Date : May 23 (Wed) 16:30 - 18:00

Place : B707 Math. Dept., Fac. Sci., Hiroshima University

Speaker : Makoto SAKUMA (Hiroshima Univ.)

Title : On equivariant sphere-filling curves associated with punctured torus bandles over the circle

Past seminars

2004

2005

2006

Organizers

• Masakazu Shiba, Graduate School of Engineering, Hiroshima University
• Tetsu Shimomura, Graduate School of Education, Hiroshima University
• Toshiyuki Sugawa, Graduate School of Science, Hiroshima University
• Yoshihiro Mizuta, Faculty of Integrated Arts and Sciences, Hiroshima University
• Masafumi Yoshino, Graduate School of Science, Hiroshima University

Contact