Extensions contained in ideals

Dan Kucerovsky
2003 Transactions of the American Mathematical Society  
We prove a Weyl-von Neumann type absorption theorem for extensions which are not full, and give a condition for constructing infinite repeats contained in an ideal. We also clear up some questions associated with the purely large criterion for full extensions to be absorbing.
doi:10.1090/s0002-9947-03-03297-5 fatcat:akt33j5aezclbnyrifkzfq3gqy