Results 21 to 30 of about 3,753,549 (263)

Shifting Operators in Geometric Quantization [PDF]

open access: yesAxioms, 2020
The original Bohr-Sommerfeld theory of quantization did not give operators of transitions between quantum quantum states. This paper derives these operators, using the first principles of geometric quantization.
Cushman, Richard, Śniatycki, Jędrzej
openaire   +4 more sources

Common diskcyclic vectors

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
In this paper, we study the common diskcyclic vectors for a path of diskcyclic operators. In particular, if  is a path of diskcyclic operators, we show that under certain conditions the intersection of diskcyclic vectors for theses operators is a dense ...
Nareen Bamerni
doaj   +1 more source

Dynamics of shift operators on non-metrizable sequence spaces [PDF]

open access: yesRevista matemática iberoamericana, 2019
We investigate dynamical properties such as topological transitivity, (sequential) hypercyclicity, and chaos for backward shift operators associated to a Schauder basis on LF-spaces.
J. Bonet, T. Kalmes, A. Peris
semanticscholar   +1 more source

Otologic symptoms and hearing thresholds among a cohort of call center operators in Lagos

open access: yesThe Egyptian Journal of Otolaryngology, 2022
Background The call center operation jobs are becoming a global phenomenon. The use of headphones for 7 to 9 h daily with varying noise level exposure is quite common among call center operators. This can cause structural and/or functional changes in the
Derek O. O. Olagbemi   +3 more
doaj   +1 more source

Shift operators, residue families and degenerate Laplacians [PDF]

open access: yesPacific Journal of Mathematics, 2018
We introduce new aspects in conformal geometry of some very natural second-order differential operators. These operators are termed shift operators.
M. Fischmann, A. Juhl, B. Ørsted
semanticscholar   +1 more source

AdS weight shifting operators [PDF]

open access: yesJournal of High Energy Physics, 2018
AbstractWe construct a new class of differential operators that naturally act on AdS harmonic functions. These are weight shifting operators that change the spin and dimension of AdS representations. Together with CFT weight shifting operators, the new operators obey crossing equations that relate distinct representations of the conformal group.
Costa, Miguel S., Hansen, Tobias
openaire   +5 more sources

A characterization for $B$-singular integral operator and its commutators on generalized weighted $B$-Morrey spaces

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2023
We study the maximal operator $M_{\gamma}$ and the singular integral operator $A_{\gamma}$, associated with the generalized shift operator. The generalized shift operators are associated with the Laplace-Bessel differential operator.
J.J. Hasanov, I. Ekincioglu, C. Keskin
doaj   +1 more source

Topological Transitivity of Shift Similar Operators on Nonseparable Hilbert Spaces

open access: yesJournal of Function Spaces, 2021
In this paper, we investigate topological transitivity of operators on nonseparable Hilbert spaces which are similar to backward weighted shifts.
Andriy Zagorodnyuk, Zoriana Novosad
doaj   +1 more source

A Functional Abstraction of Typed Invocation Contexts [PDF]

open access: yesLogical Methods in Computer Science, 2022
In their paper "A Functional Abstraction of Typed Contexts", Danvy and Filinski show how to derive a monomorphic type system of the shift and reset operators from a CPS semantics.
Youyou Cong   +3 more
doaj   +1 more source

Hypercyclicity of adjoint of convex weighted shift and multiplication operators on Hilbert spaces [PDF]

open access: yesMathematics and Computational Sciences, 2021
A bounded linear operator $T$ on a Hilbert space $\mathfrak{H}$ is convex, if $$\|\mathfrak{T}^{2}v\|^2-2\|\mathfrak{T}v\|^2+\|v\|^2 \geq 0.$$ In this paper, sufficient conditions to hypercyclicity of adjoint of unilateral (bilateral) forward (backward ...
Lotfollah Karimi
doaj   +1 more source

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