Generalized noncommutative Hardy and Hardy-Hilbert type inequalities

Research output: Contribution to journalJournal articleResearchpeer-review

  • Frank Hansen
  • Kristina Krulic
  • Josip Pecaric
  • Lars-Erik Persson
We extend and unify several Hardy type inequalities to functions whose values are positive semi-definite operators. In particular, our methods lead to the operator versions of Hardy-Hilbert's and Godunova's inequalities. While classical Hardy type inequalities hold for parameter values p > 1, it is typical that the operator versions hold only for 1 < p = 2, even for functions with values in 2 × 2 matrices.
Original languageEnglish
JournalInternational Journal of Mathematics
Volume21
Issue number10
Pages (from-to)1283-1295
Number of pages13
ISSN0129-167X
DOIs
Publication statusPublished - 2010

    Research areas

  • Faculty of Social Sciences - inequalities, Hardy–Hilbert's inequality, Godunova's inequality, weights, positive operator, operator convex functions

ID: 22952728