секция ДУМФ

На 22.06.2022г. от 14 ч. ще се проведе поредната сбирка на семинара по Диференциални уравнения на секция ДУМФ. Доклад на тема On Contact Defects in Reaction-Diffusion Systems ще изнесе д-р Милен Иванов. Абстракт: Solutions of reaction-diffusion systems exhibit a wide variety of patterns like spirals, stripes and Turing patterns. In particular, the Belousov-Zhabotinsky (BZ) reaction produces spiral patterns, which may undergo a period-doubling bifurcation; then a line defect is emitted from the center of the spiral and along it the pattern jumps half a period. In order to study this phenomenon, we consider the so-called contact defects, studied by Sandstede and Scheel: functions, which converge (in an appropriate sense) to a periodic function as x→±∞. Of interest is the problem of truncating such a [...]