Abstract
In this paper, we provide some sufficient conditions for Pettis integrability of operator valued functions that take values in ideals of compact operators on the separable Hilbert space. Additionally, we show that, in general, these conditions do not imply Bochner integrability.
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References
Bhatia, R.: Matrix Analysis. Springer, New York (1997)
Diestel, J., Jarchow, H., Tonge, A.: Absolutely Summing Operators, Cambridge Studies in Advanced Mathematics, vol. 43 (1995)
Diestel, J., Uhl, J.J.: Vector Measures. American Mathematical Society, Mathematical Surveys and Monographs, vol. 15 (1977)
Gohberg, I.C., Krein, M.G.: Introduction to the theory of linear non-selfadjoint operators. Transl. Mathematical Monographs, vol. 18, American Mathematical Society, Providence, RI (1969)
Halmos, P.: A Hilbert Space Problem Book, 2nd edn. Springer, New York (1982)
Jocic, D.R., Krtinic, D., Lazarevic, M.: Cauchy–Schwarz inequalities for inner product type transformers in Q$^*$ norm ideals of compact operators. Positivity 24, 933–956 (2020)
Jocic, D.R.: Cauchy–Schwarz norminequalities for weak$^*$-integrals of operator valued functions. J. Funct. Anal. 218, 318–346 (2005)
Krstić, M., Milović, M., Milosevć, S.: Belonging of Gel’fand integral of positive operator valued functions to separable ideals of compact operators on Hilbert space. Positivity 27, 4 (2023)
Lipecki, Z., Musial, K.: On the Radon–Nikodym derivative of a measure taking values in Banach space with basis. Rev. Roum. Math. Pures Appl. 28, 911–915 (1978)
Musial, K.: The weak Radon–Nikodym property in Banach spaces. Stud. Math. 64, 151–174 (1979)
Odell, E., Rosenthal, H.P.: A double-dual characterization of separable Banach spaces containing \(\ell ^1\). Israel J. Math. 20(3–4), 375–384 (1975)
Simon, B.: Trace Ideals and Their Applications. American Mathematical Society, Mathematical Surveys and Monographs, vol. 120 (2005)
Wu, P.Y.: Additive combinations of special operators. In: Zemnek, J. (ed.) Functional Analysis and Operator Theory, vol. 30, pp. 337–361. Banach Center Publication, Warsaw (1994)
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The author M.M. confirms sole responsibility for the all the results and manuscript preparation. Funding Author has been funded by MPNTR grant, No. 174017, Serbia.
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Milović, M. Weak integrability of operator valued functions with values in ideals of compact operators on Hilbert space. Positivity 28, 30 (2024). https://doi.org/10.1007/s11117-024-01047-2
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DOI: https://doi.org/10.1007/s11117-024-01047-2
Keywords
- Integration in Banach spaces
- Operator valued function
- Symmetrically norming function
- Ideals of compact operators