Isometry  Adjoint left inverse
60514
Isometric  Left Inverse Adjoint
35345
How do i prove invertibility of this linear transformation
34070
Agreed upon domain of inverse trig functions
150274
Inverse of a function - $f^-(x)$ in a restricted domain
94375
How to perform isometric log-ratio transformation
92497
Isometric Embedding of a separable Banach Space into $\ell^{\infty}$
60069
Orthogonal parametrization
155317
Norm of adjoint operator in Hilbert space
6324
Deriving the inverse of a 2x2 matrix
122434
Adjoint of a matrix and inverse of a matrix
95250
Proof a special extension on the isoperimetric theorem
158078
Is linear surjective isometry always unitary?
107900
A ring which has many distinct left inverses
145885
Linear transformation preserving orthogonality
81240
Norm of an inverse operator: $\|T^{-1}\|=\|T\|^{-1}$?
76297
What is the inverse of the $\mbox{vec}$ operator?
44879
Multiplicative inverse questions