Articles with "operators commutators" as a keyword



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Anti-selfadjoint operators as commutators of projections

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Published in 2019 at "Journal of Mathematical Analysis and Applications"

DOI: 10.1016/j.jmaa.2019.05.042

Abstract: Abstract Let A be an anti-selfadjoint operator on a Hilbert space H with ‖ A ‖ ≤ 1 2 . We give a sufficient and necessary condition for A to be a commutator of a… read more here.

Keywords: anti selfadjoint; commutators projections; orthogonal projections; operators commutators ... See more keywords
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Potential operators and their commutators acting between variable Lebesgue spaces with different weights

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Published in 2018 at "Integral Transforms and Special Functions"

DOI: 10.1080/10652469.2018.1519807

Abstract: ABSTRACT We prove that a generalized Fefferman–Phong type conditions on a pair of weights u and v is sufficient for the boundedness of the potential type operator from into . We also obtain an analogous… read more here.

Keywords: potential operators; operators commutators; lebesgue spaces; commutators acting ... See more keywords
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Weighted inequalities for fractional Hardy operators and commutators

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Published in 2019 at "Journal of Inequalities and Applications"

DOI: 10.1186/s13660-019-2108-5

Abstract: In this paper, we introduce a fractional maximal operators Nα$N_{\alpha }$ on (0,∞)$(0,\infty )$ associated to the fractional Hardy operator Pα$P_{\alpha }$ and its dual Qα,0≤α read more here.

Keywords: hardy; operators commutators; inequalities fractional; fractional hardy ... See more keywords