Extensions of bitriangular operators Academic Article uri icon


  • We prove that every one-dimensional extension of a bitriangular operator has a cyclic commutant. We also prove that if T is an extension of a bitriangular operator by an algebraic operator, then the weakly closed algebra W(T) generated by T has a separating vector.

published proceedings

  • Integral Equations and Operator Theory

author list (cited authors)

  • Larson, D. R., & Wogen, W. R.

citation count

  • 1

complete list of authors

  • Larson, David R||Wogen, Warren R

publication date

  • June 1996