Schatten Class Integral Operators Occurring in Markov-type Inequalities

  • Albrecht BöttcherEmail author
  • Holger Langenau
  • Harold Widom
Conference paper
Part of the Operator Theory: Advances and Applications book series (OT, volume 255)


This paper is motivated by the search for best constants in Markovtype inequalities with different weights on both sides. It is known that in a large range of cases these constants involve the operator norm of certain Volterra integral operators. The proofs are based on the happy circumstance that these operators are Hilbert-Schmidt. The conjecture is that in the remaining cases the same operators occur, but a proof is still outstanding. We here show that in these cases the operators are Schatten class operators, and hence in particular compact, having hopes this will be of use in future efforts towards a confirmation of the conjecture on the best constants.


Markov inequality Volterra operator Schatten norm 

MSC 2010.

Primary 47B10 Secondary 15A60 26D10 41A44 45D05 


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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Albrecht Böttcher
    • 1
    Email author
  • Holger Langenau
    • 1
  • Harold Widom
    • 2
  1. 1.Fakultät für MathematikTechnische Universität ChemnitzChemnitzGermany
  2. 2.Department of MathematicsUniversity of CaliforniaSanta CruzUSA

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