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Toru Maruyama - Faculty Interview

Participant Profile

  • Toru Maruyama

    Mathematical Economics, Functional Analysis

    Graduated from the Faculty of Economics, ÎçÒ¹¾ç³¡ in 1972. During his time at the university, he studied under Professor Yoshito Chigusa. He went on to the Graduate School of Economics at the same university, and after studying abroad in the Department of Mathematics at the University of California, Berkeley, he became an assistant in the Faculty of Economics at ÎçÒ¹¾ç³¡ in 1977. He subsequently served as a full-time lecturer and associate professor before being appointed professor (in Theoretical Economics) in 1990. He teaches courses such as Mathematical Economics, History of Economics, and Principles of Economics. He holds a Ph.D. in Economics. During this period, he served as a Guest Professor at the University of California, Berkeley, and the Graduate School of Mathematical Sciences at the University of Tokyo. He is currently the president of the Society for the Promotion of Economic Theory and the president of the Kashi-no-kai General Incorporated Association. His academic affiliations include the Mathematical Society of Japan, the Japanese Economic Association, the Society for the Promotion of Economic Theory, the American Mathematical Society, and the Econometric Society.

    Toru Maruyama

    Mathematical Economics, Functional Analysis

    Graduated from the Faculty of Economics, ÎçÒ¹¾ç³¡ in 1972. During his time at the university, he studied under Professor Yoshito Chigusa. He went on to the Graduate School of Economics at the same university, and after studying abroad in the Department of Mathematics at the University of California, Berkeley, he became an assistant in the Faculty of Economics at ÎçÒ¹¾ç³¡ in 1977. He subsequently served as a full-time lecturer and associate professor before being appointed professor (in Theoretical Economics) in 1990. He teaches courses such as Mathematical Economics, History of Economics, and Principles of Economics. He holds a Ph.D. in Economics. During this period, he served as a Guest Professor at the University of California, Berkeley, and the Graduate School of Mathematical Sciences at the University of Tokyo. He is currently the president of the Society for the Promotion of Economic Theory and the president of the Kashi-no-kai General Incorporated Association. His academic affiliations include the Mathematical Society of Japan, the Japanese Economic Association, the Society for the Promotion of Economic Theory, the American Mathematical Society, and the Econometric Society.

Main Research Themes

Existence proof for solutions to variational problems that appear in economic analysis¡ªweak topological structure of Sobolev spaces, continuity of nonlinear integral operators, and integral decomposition of measures.

  • Fourier analytic analysis of economic fluctuations¡ªFourier analysis of periodic and almost periodic weakly stationary stochastic processes, foundations of bifurcation theory, and periodic solutions of ordinary differential equations.

His major works include the following:

"Suri Keizaigaku no Hoho" (Methods of Mathematical Economics) (Sobunsha), 1995.

"Shinko Keizai Genron" (New Lectures on the Principles of Economics) (Iwanami Shoten), 1996.

The third edition is currently in print.

"Sekibun to Kansu Kaiseki" (Integration and Functional Analysis) (Springer Tokyo), 2006.

"Walras no Shozo" (A Portrait of Walras) (Keiso Shobo), 2008.

In addition,

"Keizai Gensho no Chowa Kaiseki" (Harmonic Analysis of Economic Phenomena)

is scheduled for publication soon in Japanese (by Chisen Shokan) and English (by Springer).

(Interviewed in December 2014)

*Profile and position are as of the date of the interview.

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