>>41 "Among the "trick or two" Onsager added were results taken from branches of mathematics almost unheard of in the theoretical physics of his day-generalized quaternion algebra and the theory of elliptic functions, as expounded by his unknowing mentors, Whittaker and Watson. Joseph B. Hubbard,"
なんて読むと、おお ”his day-generalized quaternion algebra and the theory of elliptic functions”かと(^^;