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Paul Halmos
open-in-new
<p>Paul Richard Halmos was a <a href="/facts/Kingdom_of_Hungary/91tLqn81">Hungarian</a>-born <a href="/facts/United_States/P0sCdLe5">American</a> <a href="/facts/Mathematician/eaFSR8Fx">mathematician</a> and probabilist who made fundamental advances in the areas of <a href="/facts/Mathematical_logic/SaI7Y3wN">mathematical logic</a>, <a href="/facts/Probability_theory/mFBn51rE">probability theory</a>, <a href="/facts/Operator_theory/Ays1ofel">operator theory</a>, <a href="/facts/Ergodic_theory/rkqCbIy0">ergodic theory</a>, and <a href="/facts/Functional_analysis/MIp233MT">functional analysis</a> (in particular, <a href="/facts/Hilbert_space/aDFMh4lV">Hilbert spaces</a>). He was also recognized as a great mathematical expositor. He has been described as one of <a href="/facts/The_Martians_(scientists)/bjhqVukL">The Martians</a>. </p>