Results 11 to 20 of about 104,503 (165)
A discrete Hilbert-type inequality in the whole plane
Journal of Inequalities and Applications, 2016 By the use of weight coefficients and technique of real analysis, a discrete Hilbert-type inequality in the whole plane with multi-parameters and a best possible constant factor is given.
Dongmei Xin, Bicheng Yang, Qiang Chen
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Transformation operators for impedance Sturm–Liouville operators on the line
Математичні Студії, 2023 In the Hilbert space $H:=L_2(\mathbb{R})$, we consider the impedance Sturm--Liouville operator $T:H\to H$ generated by the differential expression $ -p\frac{d}{dx}{\frac1{p^2}}\frac{d}{dx}p$, where the function $p:\mathbb{R}\to\mathbb{R}_+$ is of ...
M. Kazanivskiy +2 more
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Boundedly solvable degenerate differential operators for first order
Universal Journal of Mathematics and Applications, 2018 Using the methods of operator theory all boundedly solvable extensions of the minimal operator generated by degenerated type differential-operators expression in the weighted Hilbert space of vector-functions in finite interval in terms of boundary ...
Pembe İpek, Zameddin İsmailov
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Scientific Reports, 2022 Listeria monocytogenes is a pathogenic bacterium that produces flagella, the locomotory organelles, in a temperature-dependent manner. At 37 °C inside humans, L.
Han Byeol Oh, Su-jin Lee, Sung-il Yoon
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Krein-von Neumann extension of an even order differential operator on a finite interval [PDF]
Opuscula Mathematica, 2018 We describe the Krein-von Neumann extension of minimal operator associated with the expression \(\mathcal{A}:=(-1)^n\frac{d^{2n}}{dx^{2n}}\) on a finite interval \((a,b)\) in terms of boundary conditions. All non-negative extensions of the operator \(A\)
Yaroslav I. Granovskyi +1 more
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Electron Broadening Operator Including Penetrating Collisions for Hydrogen
Atoms, 2020 The expression of the electron broadening operator including the effect of penetrating collisions, i.e., for which the incoming electron enters the extent of bound-electron wave-functions, is rather complicated, even for hydrogen.
Jean-Christophe Pain, Franck Gilleron
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The Veneziano amplitude via mostly BRST exact operator
Nuclear Physics B, 2022 The Veneziano amplitude is derived from fixing one degree of freedom of PSL(2,R) symmetry by the insertion of a mostly BRST exact operator. Evaluating the five-point function which consists of four open string tachyons and this gauge fixing operator, we ...
Isao Kishimoto +3 more
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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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Facial expression recognition using singular values and wavelet‐based LGC‐HD operator
IET Biometrics, 2021 Facial expression recognition (FER) is a significant research area in the human–computer interaction. The performance of FER systems depends on an efficient feature extraction method.
Durga G. Rao Kola +1 more
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On integral representation of thetranslation operator
Mathematical Modelling and Analysis, 2012 The formulation in the explicit form of quantum expression of the one-dimensional translation operator as well as Hermitian operator of momentum and its eigenfunctions are presented.
Paulius Miškinis
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