Results 11 to 20 of about 594,472 (279)
Coordinate-Free Approach for the Model Operator Associated With a Third-Order Dissipative Operator
Frontiers in Physics, 2019 In this paper we investigate the spectral properties of a third-order differential operator generated by a formally-symmetric differential expression and maximal dissipative boundary conditions.
Ekin Uğurlu +2 more
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Journal of Function Spaces, 2020 This paper deals with a singular (Weyl’s limit circle case) non-self-adjoint (dissipative) Dirac operator with eigenparameter dependent boundary condition and finite general transfer conditions.
Kun Li +3 more
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The characteristic function for complex doubly infinite Jacobi matrices [PDF]
, 2017 We introduce a class of doubly infinite complex Jacobi matrices determined by a simple convergence condition imposed on the diagonal and off-diagonal sequences. For each Jacobi matrix belonging to this class, an analytic function, called a characteristic
Štampach, František
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Spherical Redshift Distortions [PDF]
, 1995 Peculiar velocities induce apparent line of sight displacements of galaxies in redshift space, distorting the pattern of clustering in the radial versus transverse directions.
Culhane, M., Hamilton, A. J. S.
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Dunkl Translation and Uncentered Maximal Operator on the Real Line
International Journal of Mathematics and Mathematical Sciences, 2007 We establish estimates of the Dunkl translation of the characteristic function χ[−ɛ,ɛ], ɛ>0, and we prove that the uncentered maximal operator associated with the Dunkl operator is of weak type (1,1).
Chokri Abdelkefi, Mohamed Sifi
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工程科学学报, 2021 Periodic impulses in vibration signals and its repeating frequency are the key factors for diagnosing rolling element bearing faults. A new method based on ensemble empirical mode decomposition(EEMD) and cross energy operator was proposed to extract the ...
ZHAO Xiao-ning, FENG Zhi-peng
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Exact density matrix elements for a driven dissipative system described by a quadratic Hamiltonian
Scientific Reports, 2021 For a prototype quadratic Hamiltonian describing a driven, dissipative system, exact matrix elements of the reduced density matrix are obtained from a generating function in terms of the normal characteristic functions.
Sh. Saedi, F. Kheirandish
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Commuting nonselfadjoint operators and their characteristic operator-functions
, 1997 Summary: We present some generalizations of results of \textit{M. S. Livšic} [Oper. Theory, Adv. Appl. 19, 255-277 (1986; Zbl 0627.47019), ``Commuting nonselfadjoint operators in Hilbert space'', Lect. Notes Math. 1272, 1-38 (1987; Zbl 0629.47007)], concerning regular colligations \((A_1, A_2, H,\Phi, E,\sigma_1,\sigma_2,\gamma, \widetilde\gamma)\) \((\
Kirchev, K., Borisova, G.
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SYSTEM COMPLETENESS OF RESONANCE STATES FOR GRAPHS WITH DIFFERENT GEOMETRY [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Resonant states (quasi-intrinsic functions) play an important role in the scattering problem and in the description of transportprocesses. We consider the system completeness of resonance states on a finite subgraph for quantum graphs with both finite ...
I. V. Blinova +2 more
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Infinite-dimensional $p$-adic groups, semigroups of double cosets, and inner functions on Bruhat--Tits builldings [PDF]
, 2014 We construct $p$-adic analogs of operator colligations and their characteristic functions. Consider a $p$-adic group $G=GL(\alpha+k\infty, Q_p)$, its subgroup $L=O(k\infty,Z_p)$, and the subgroup $K=O(\infty,Z_p)$ embedded to $L$ diagonally. We show that
A. Hatcher +38 more
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