“…For other approximation methods in mathematical finance/financial engineering see for example, Bayer and Laurence [3], Ben Arous and Laurence [4], Gatheral, Hsu, Laurence, Ouyang, and Wang [14], Fouque, Papanicolaou and Sircar [13], Henry-Labordere [25], Kusuoka and Osajima [23], Osajima [34], Siopacha and Teichmann [40], and [10], [11], [12], [18], [55], [60], [61].…”