Estimate of the norm \(\| f(A_ 1,A_ 2)-f(B_ 1,B_ 2)\|\) for pairs of self-adjoint commuting operators
Translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 135, 175-177 (Russian) (1984; Zbl 0542.47016).
scientific article; zbMATH DE number 3913065