“…Such mathematics are being useful on a great variety of areas in Physics. In particular, RHS have been used in the study of Scattering Theory [26], resonances [13,15,2,3,4,14,16], singular states in Statistical Mechanics [36,5,17], spectral decompositions associated to chaotic maps [6,35], time irreversibility [31,4] or axiomatic theory of quantum fields [11].…”