@article {2000, title = {An elementary approach to the polynomial $\\\\tau$-functions of the KP Hierarchy}, journal = {Theor. Math. Phys. 122 (2000) 17-28}, number = {SISSA;117/98/FM}, year = {2000}, publisher = {Springer}, abstract = {We give an elementary construction of the solutions of the KP hierarchy associated with polynomial τ-functions starting with a geometric approach to soliton equations based on the concept of a bi-Hamiltonian system. As a consequence, we establish a Wronskian formula for the polynomial τ-functions of the KP hierarchy. This formula, known in the literature, is obtained very directly.}, doi = {10.1007/BF02551166}, url = {http://hdl.handle.net/1963/3223}, author = {Gregorio Falqui and Franco Magri and Marco Pedroni and Jorge P. Zubelli} }