%0 Journal Article %T On von Neumann's inequality %A Arthur Lubin %J International Journal of Mathematics and Mathematical Sciences %D 1978 %I Hindawi Publishing Corporation %R 10.1155/s0161171278000162 %K commuting contraction on a Hilbert space %K spectral set %K inequality. %U http://dx.doi.org/10.1155/S0161171278000162