مشخصات پژوهش

صفحه نخست /CASCADES OF ALTERNATING ...
عنوان CASCADES OF ALTERNATING SMOOTH BIFURCATIONS AND BORDER COLLISION BIFURCATIONS WITH SINGULARITY IN A FAMILY OF DISCONTINUOUS LINEAR-POWER MAPS
نوع پژوهش مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها Piecewise smooth maps, border collision bifurcations, cascade of smooth and nonsmooth bifurcations, skew tent map as a normal form, unbounded chaotic sets.
چکیده We investigate the dynamics of a family of one-dimensional linear-power maps. This family has been studied by many authors mainly in the continuous case, associated with Nordmark systems. In the discontinuous case, which is much less studied, the map has vertical and horizontal asymptotes giving rise to new kinds of border collision bifurcations. We explain a mechanism of the interplay between smooth bifurcations and border collision bifurcations with singularity, leading to peculiar sequences of attracting cycles of periods n, 2n, 4n-1, 2(4n-1),..., n >=3. We show also that the transition from invertible to noninvertible map may lead abruptly to chaos, and the role of organizing center in the parameter space is played by a particular bifurcation point related to this transition and to a flip bifurcation. Robust unbounded chaotic attractors characteristic for certain parameter ranges are also described. We provide proofs of some properties of the considered map. However, the complete description of its rich bifurcation structure is still an open problem.
پژوهشگران لورا گاردینی (نفر اول)، رویا مکرونی (نفر دوم)، ایرینا سوشکو (نفر سوم)