Bertrand Gauthier

Kernel embedding of measures and low-rank approximation of integral operators

2024 · Positivity

Abstract We describe a natural coisometry from the Hilbert space of all Hilbert-Schmidt operators on a separable reproducing kernel Hilbert space $$\hbox { (RKHS)}\, \mathcal {H}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mspace/> <mml:mtext>(RKHS)</mml:mtext> <mml:mspace/> <mml:mi>H</mml:mi> </mml:mrow> </mml:math> …