ABSTRACT

J . SHIROHZU Dept . of Math. , Graduate School of Sci . Tech . , Chiba University, Inage-ku Chiba, 263 Japan

A . KADOYA Dept . of Management Science, Fac. of Commercial Science, Hiroshima Shudo University, Asaminami-ku Hiroshima, 731-31 Japan

N. KATO Information System Department , Taisei Corporation , Shinjuku-ku Tokyo, 169 Japan

N. KENMOCHI Dept . of Math. , Faculty of Education, Chiba University, Inage-ku Chiba, 263 Japan

This paper is concerned with a boundary control problem for the phase field model with double obstacles .