pseudocontractive

== English == === Etymology === From pseudo- +‎ contractive. === Pronunciation === === Adjective === pseudocontractive (not comparable) (mathematics) Satisfying the equation ||Tx - Ty|| <= ||x - y|| - α * ||x - y||2 where T is the mapping that is pseudocontractive, x and y are points in the metric space, ||.|| denotes the norm in the metric space, and α is a constant.