ultracontractivity en · NOUN
Etymology
From ultra- + contractivity.
Meanings
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(uncountable) The property of being ultracontractive.
As a consequence, we obtain for a large subclass of confining potentials that, on the one hand, supercontractivity and ultracontractivity, on the other hand, hypercontractivity and asymptotic ultracontractivity of the transformed semigroup are equivalent properties.
2015, Kamil Kaleta, Mateusz Kwaśnicki, József Lőrinczi, “Contractivity and ground state domination properties for non-local Schrödinger operators”, in arXiv: