5·î14Æü(¿å) 15:30 -- 17:00 Prof. Alain Damlamian (Universit Paris-Est, France) ``Homogenization of a variational problem on a domain with oscillating boundaries via periodic unfolding.'' ¡ã¸¦µæȯɽÍ׻ݡä We present a variational problem on a sequence of 2-dimensional domains with highly periodically oscillating boundaries. Using the periodic unfolding method (which will be briefly explained), the homogenized problem is obtained in the limit as the period length approaches zero. The proof is amazingly simple. Extensions in higher dimensions and with highly oscillating coefficients are also given. In this framework, a result of strong convergence is obtained which seems to be new.