This work solves the partial differential equation for Jack polynomials of the second order. When the parameter α of the solution takes the values 1/2, 1 and 2 we get explicit formulas for the quaternionic, complex and real zonal polynomials of the second order, respectively.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-am34-1-9, author = {Francisco J. Caro-Lopera and Jos\'e A. D\'\i az-Garc\'\i a and Graciela Gonz\'alez-Far\'\i as}, title = {A formula for Jack polynomials of the second order}, journal = {Applicationes Mathematicae}, volume = {34}, year = {2007}, pages = {113-119}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-am34-1-9} }
Francisco J. Caro-Lopera; José A. Díaz-García; Graciela González-Farías. A formula for Jack polynomials of the second order. Applicationes Mathematicae, Tome 34 (2007) pp. 113-119. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-am34-1-9/