We introduce the notion of (completely) multi-positive linear maps between C*-algebras, and show that a completely multi-positive linear map induces a representation of a C*-algebra on Hilbert ...

In the present paper we study the compositions of the piecewise linear interpolation operator S Δ n and the Beta-type operator B ¯ n , namely A n := S Δ n ∘ B ¯ n and G n := B ¯ n ∘ S Δ n .

In a recent study, scientists from the Institute of Physics of the Chinese Academy of Sciences, in collaboration with scientists from Dresden, Halle, and others have established a physical model of ...