Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Subnormal operator
open-in-new
<p>In <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, especially <a href="/facts/Operator_theory/Ays1ofel">operator theory</a>, subnormal operators are <a href="/facts/Bounded_operator/LYmDTIqR">bounded operators</a> on a <a href="/facts/Hilbert_space/aDFMh4lV">Hilbert space</a> defined by weakening the requirements for <a href="/facts/Normal_operator/lwtz7tuF">normal operators</a>. Some examples of subnormal operators are <a href="/facts/Isometry/K5wX8ah6">isometries</a> and <a href="/facts/Toeplitz_operator/loEQuV97">Toeplitz operators</a> with analytic symbols. </p>