On maximal chains in posets with group actions
By: Muhammad, Abd al-Ali Jasim; Kazim, Abbas Husayn. al-Tarbiyah wa-al-Ilm : Majallat ilmiyah lil-Buhuth al-Ilmiyah al-Asasiyah. Vol. 19, no. 2 (2007), pp.107-121, 15 p.
Subjects: Mathematical models; Time-series analysis