A characterization of open mapping in terms of convergent sequences. Schochetman, Irwin E. — 2006 International Journal of Mathematics and Mathematical Sciences
Optimality criteria for deterministic discrete-time infinite horizon optimization. Schochetman, Irwin E.; Smith, Robert L. — 2005 International Journal of Mathematics and Mathematical Sciences
On the closure of the sum of closed subspaces. Schochetman, Irwin E.; Smith, Robert L.; Tsui, Sze-Kai — 2001 International Journal of Mathematics and Mathematical Sciences