\BOOKMARK [1][-]{section.1}{Introduction}{} \BOOKMARK [1][-]{section.2}{Enumeration of partitions by t-levels}{} \BOOKMARK [2][-]{subsection.2.1}{Some Special Cases}{section.2} \BOOKMARK [1][-]{section.3}{Enumeration of partitions by t-rises}{} \BOOKMARK [2][-]{subsection.3.1}{The case t=2}{section.3} \BOOKMARK [2][-]{subsection.3.2}{The case t=3}{section.3} \BOOKMARK [1][-]{section.4}{Enumeration of partitions by t-descents}{} \BOOKMARK [2][-]{subsection.4.1}{The case t=2}{section.4} \BOOKMARK [2][-]{subsection.4.2}{The case t=3}{section.4} \BOOKMARK [1][-]{section.5}{Concluding remarks}{}