The second mixed projection problem and the projection centroid conjectures
arXiv:1610.07331 · doi:10.1016/j.jfa.2017.02.005
Abstract
We provide partial answers to the open problems 4.5, 4.6 of \cite{Gardner} and 12.9 of \cite{Lut1} regarding the classification of fixed points of the second mixed projection operator and iterates of the projection and centroid operators.
minor changes,to appear in JFA