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Topological invariants, diametral dimension, and one related question

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Topological invariants, diametral dimension, and one

related question

Loïc Demeulenaere

May 15, 2017

Diametral dimension is a topological invariant for topological vector spaces which appears to be useful to characterize some classical classes of locally convex spaces (Schwartz, nuclear spaces). In this talk, we rst introduce the notion of Kolmogorov's diameters to dene the diametral dimension of a topological vector space. We also consider some simple properties of these concepts. Then, we focus on an open question concerning the equality of the diametral dimension with one of its variants.

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