pseudometrics

pseudometrics

1. plural of pseudometric
   • 2016, Vyacheslav V. Chistyakov, Svetlana A. Chistyakova, “The joint modulus of variation of metric space valued functions and pointwise selection principles”, in arXiv‎:

     Given ${\displaystyle T\subset \mathbb {R} }$ and a metric space ${\displaystyle M}$, we introduce a nondecreasing sequence of pseudometrics ${\displaystyle \{\nu _{n}\}}$ on ${\displaystyle M^{T}}$ (the set of all functions from ${\displaystyle T}$ into ${\displaystyle M}$), called the joint modulus of variation.