Take the 2-minute tour ×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.

Possible Duplicate:
Quasinilpotent operator

Do you know any example of a quasinilpotent operator such that every its power is non-compact?

Of course direct sum of nilpotent operators(or Volterra operator) can by good. But I search for same known("classical") example.

share|improve this question

marked as duplicate by Andreas Thom, Bill Johnson, Matthew Daws, Yemon Choi, Alain Valette Jan 8 '12 at 6:30

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

This appears to be identical to mathoverflow.net/questions/84964/quasinilpotent-operator which was closed two days ago. It seems pointless to just repeat a question which the community felt was not suitable for this site... –  Matthew Daws Jan 7 '12 at 17:35

1 Answer 1

In http://www.jstor.org/pss/2047905 you can find a weighted shift operator that has this property.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.