nonsummable

English

Etymology

non- +‎ summable

Adjective

nonsummable (not comparable)

1. (mathematics) That cannot be summed
   • 2015, Alexey Korepanov, “Linear response for intermittent maps with summable and nonsummable decay of correlations”, in arXiv‎^[1]:

     We show that despite the absence of a spectral gap for all $\alpha \in (0,1)$ and despite nonsummable correlations for $\alpha \geq 1/2$, the map $\alpha \mapsto \int \varphi \,d\nu _{\alpha }$ is continuously differentiable for $\varphi \in L^{q}[0,1]$ for $q$ sufficiently large..