compact positive operator
119352
compact and self adjoint square root of an operator
30210
A compact operator is completely continuous.
15035
An operator on the other side of the Schrödinger equation
146839
Orthogonal Projection onto the $ {L}_{\infty} $ Unit Ball
55067
Norm of self-adjoint operator
135252
If $M$ is positive definite, then $\operatorname{det}{(M)}\leq \prod_i m_{ii}$
133149
Inverse of a Positive Definite
51302
Show that the operator norm is submultiplicative
62425
Equivalent Definitions of the Operator Norm
95234
Quasi-components in compact space
84535
The spectral radius of normal operator
103045
Composition of Proximal Operators
8698
Show the Volterra Operator is compact using only the definition of compact
68132
Small positive eigenvalues found for a negative definite matrix
142145
strictly positive elements in $C^*$-algebra
75211
Theorem about positive matrices
3023
Construction of a Borel set with positive but not full measure in each interval