مشخصات پژوهش

عنوان	Maps preserving the ascent and descent of product of operators
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	preservers, Ascent, Descent, Bounded operator.
چکیده	Let B(X)be the algebra of all bounded linear operators on a complex or real Banach space Xwith dimX≥3. In this paper, we characterize the maps from B(X)into itself which preserve the ascent of product of operators or, they preserve the descent of product of operators. It turns out that both problems are connected with preservers of the rank-one nilpotency of the product.
پژوهشگران	تاتیانا پتک (نفر دوم)، روجا حسین زاده (نفر اول)