A. Connes et H. Moscovici, TRANSGRESSION AND THE CHERN CHARACTER OF FINITE-DIMENSIONAL K-CYCLES, Communications in Mathematical Physics, 155(1), 1993, pp. 103-122
It is shown that the [JLO] entire cocycle of a finitely summable unbou
nded Fredholm module can be retracted to a periodic cocycle. Moreover,
the retracted cocycle admits a zero-temperature limit, which provides
the extension of the transgressed cocycle of [CMI] from the invertibl
e case to the general case.