__ The electronic form of this journal is freely available from Vol. 1 to Vol. 39. As for volumes from Vol. 40 to the current one, only subscribers of the paper journal can electronically obtain full articles. (This electronic document service is not a commercial service and is operated only for academic purposes.)
Editorial Board

Yoshiyuki HINO Faculty of Science, Chiba University, Chiba 263--8522, Japan
Mitsuru IKAWA Graduate School of Science, Kyoto University, Kyoto 606--8502, Japan
Hitoshi ISHII Faculty of Education, Waseda University, Tokyo 169--8050, Japan
Tetsuro MIYAKAWA Department of Mathematics, Kanazawa University, Kanazawa, 920--1192, Japan
Masatoshi NOUMI Graduate School of Science and Technology, Kobe University, Kobe 657-8501, Japan
Kazuo OKAMOTO Graduate School of Mathematical Sciences, The University of Tokyo, Tokyo 153--8914, Japan
Izumi TAKAGI Mathematical Institute Tohoku University, Sendai 980--8578, Japan
Kyoichi TAKANO Faculty of Science, Kobe University, Kobe 657--8501, Japan
Masaaki YOSHIDA Faculty of Mathematics, Kyushu University, Fukuoka 810--8560, Japan


__ The FUNKCIALAJ EKVACIOJ (International Series) was founded in April, 1958, and is published three times per year under the editorship of the DIVISION OF FUNCTIONAL EQUATIONS, THE MATHEMATICAL SOCIETY OF JAPAN. It serves for publishing original articles concerning the study of functional equations and related topics. Contribution is free of charge, and no restriction is laid on the competency of contributors. Titles of papers in previous volumes are found in this web site.
__ Manuscript should be addressed to anyone of the editors above. 50 free copies of extract are provided for the contributor, and necessary cost is to be charged for additional copies.
__ Inquiries except subscription orders should be written to:

Division of Functional Equations
The Mathematical Society of Japan
c/o Faculty of Science, Kobe University
Kobe 657-8501, Japan


__ Subscription should be prepaid. The price is $240.00 a volume (three numbers). Orders for subscription and back numbers are handled by:

Japan Publications Trading Co., Ltd.
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Instruction for authors

__ Manuscripts should be typed using TeX, with 12-point letters in the main text. They may be typed single spaced, but only with generous margins; and should be printed out on one side of each sheet of A4-sized papers. Manuscripts should be submitted in duplicate, one original and one copy.

__ Manuscripts should contain the following:

____ 1. Abstract (of approximately 10 lines without mathematical formulas)
____ 2. Key Words and Phrases
____ 3. 2000 Mathematics Subject Classification Numbers

These should be put before Introduction, and no footnotes may be added except one acknowledging financial support.

__ It is also possible to submit papers electronically. In this case, manuscripts should be prepared by using

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Do not use any local commands, nor macros. The source file of a manuscript should be addressed via e-mail to