Alexandrov, AlexanderKazakov, VladimirLeurent, SebastienTsuboi, ZengoZabrodin, Anton2015-12-081029-8479http://hdl.handle.net/1885/34737For an arbitrary generalized quantum integrable spin chain we introduce a "master T -operator" which represents a generating function for commuting quantum transfer matrices constructed by means of the fusion procedure in the auxiliary space. We show thatKeywords: Integrable Equations in Physics; Lattice Integrable ModelsClassical tau-function for quantum spin chains201310.1007/JHEP09(2013)0642016-02-24