5月1日(木)   15:00 -- 16:30  卓 建宏 (中華民国国立中正大学数学系)
             ``On the finite difference approximation for the 
               nonlinear wave equation.''


＜研究発表要旨＞
We consider the 1-dim nonlinear wave equation utt = uxx+ up (p>1) and its
finite difference analogue. It is known that solutions of the current
equation may become unbounded in finite time, a phenomenon which is known
as blow-up. Numerical approaches on such kind of problems are widely
investigated in the last decade. However, those results are mainly about
the parabolic blow-up problems. Compared with the parabolic ones, there is
a remarkable property for the solution of the nonlinear wave equation ?
the existence of the blow-up curve. That is, even if the maximum of the
solution has become unbounded, the solution continues to exist at the rest
points and blows up at later times. We are concerned in the talk with a
question as to how a finite difference scheme can reproduce such a
phenomenon.

セミナー室: 京都大学 文学部東館2階 262号室
            （応用解析学講座セミナー室）

●学内建替え工事のため、応用解析学講座のセミナー室は「分学東館」に移動
  しています。文学部東館は、地下に中央食堂のある建物の北隣です。

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セミナー連絡先: 京都大学大学院 情報学研究科 複雑系科学専攻
                 磯 祐介    e-mail; iso@i.kyoto-u.ac.jp