STUDIA MATHEMATICA, vol.232, no.3, pp.243-266, 2016 (SCI-Expanded)
A Frechet space chi with a sequence {parallel to.parallel to k}(k=1)(infinity) of generating seminorms is called tame if there exists an increasing function sigma : N -> Nsuch that for every continuous linear operator T from chi into itself, there exist N-0 and C > 0 such that