On absorbing extensions

Klaus Thomsen
2000 Proceedings of the American Mathematical Society  
Building on the work of Kasparov we show that there always exists a trivial absorbing extension of A by B ⊗ K, provided only that A and B are separable. If A is unital there is a unital trivial extension which is unitally absorbing.
doi:10.1090/s0002-9939-00-05936-0 fatcat:3kw333q66nex7a6d7skmcxbd7m