. "Robertson, Howard Percy; Robertson, Bob"@en . "1903-01-27Z"^^ . "1961Z"^^ . . "American mathematician and physicist" . "1961-08-26Z"^^ . . . . . . "Robertson, Howard P."@en . . "1903Z"^^ . . "Howard Percy (Bob) Robertson (January 27, 1903 \u2013 August 26, 1961) was an American mathematician and physicist known for contributions related to physical cosmology and the uncertainty principle. He was Professor of Mathematical Physics at the California Institute of Technology and Princeton University.Robertson made important contributions to the mathematics of quantum mechanics, general relativity and differential geometry."@en . . .