Linear bounded Hermitean operators can be operators {Einzeltransformation} E such that E-E- = E-, E+E+ = E+, and I = E- + E+. Einzeltransformations are commutative and commute with any operator that commutes with Hermitean operator. Hermitean times E- is greater than zero, and Hermitean times E+ is greater than zero.
Mathematical Sciences>Calculus>Analysis>Operator
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Date Modified: 2022.0224