BM with absorbing/reflecting boundary modeling queues, financial-default-barriers, semilinear-PDEs; Tanaka equation Y_t = sup_{s <=t} (-B_s); local-time at boundary regulates increments.
BM with absorbing/reflecting boundary modeling queues, financial-default-barriers, semilinear-PDEs; Tanaka equation Y_t = sup_{s <=t} (-B_s); local-time at boundary regulates increments.