2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/80475We consider KP tau function of hypergeometric type $τ({\bf t},T,{\bf t}^*)$, where the set ${\bf t}$ is the KP higher times and $T,{\bf t}^*$ are sets of parameters. Fixing ${\bf t}^*$, we find that $τ({\bf t},T,{\bf t}^*)$ is an infinite-soliton solution of different (dual) multi-component KP (and TL) hierarchy, where the roles of the variables ${\bf t}$ and $T$ are interchanged. When $τ({\bf t},T,{\bf t}^*)$ is a polynomial in ${\bf t}$, we obtain a $N$-soliton solution of the dual hierarchy. Parameters of the solitons are related to the Frobenius coordinates of partitions in the Schur function development of $τ({\bf t},T,{\bf t}^*)$.Latex, 24 pages, no figuresExactly Solvable and Integrable Systemstext