Positive operators. Square roots of operators. Characterization of positive operators. Each positive operator has a unique positive square ... ... <看更多>

Functional#MyDearMathsIn this video positive operator is defined and some of its properties have been proved. ... <看更多>

If you define positive operators via the spectrum, then this is an immediate consequence of the spectral mapping theorem. – MaoWao · I don't know ... ... <看更多>