A diagonal theorem in non-commutative groups and its consequences
The author proves a diagonal theorem for matrices with coefficients in noncommutative groups and deduces from it noncommutative versions of Phillips lemma, of the Brooks-Jewett-Nikodým convergence theorem and of the Banach-Pettis theorem on continuity of pointwise limits of continuous homomorphisms.
Brooks-Jewett-Nikodým convergence theorem
scientific article; zbMATH DE number 411643