Results 11 to 20 of about 3,332 (213)
Landau’s inequality for the difference operator [PDF]
Proceedings of the American Mathematical Society, 1988 The best constants for Landau’s inequality with the classical p p -norms are known explicitly only when
Kwong, Man Kam, Zettl, A.
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The homogeneous q-difference operator
Advances in Applied Mathematics, 2003 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
William Y. C. Chen +2 more
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The operator difference in absolute geomagnetic measurements [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2019 Absolute geomagnetic measurement is very important at geomagnetic observatories. It plays a decisive role in data quality control and instrument calibration.
Y. He +7 more
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A new aspect of generalized integral operator and an estimation in a generalized function theory
Advances in Difference Equations, 2021 In this paper we investigate certain integral operator involving Jacobi–Dunkl functions in a class of generalized functions. We utilize convolution products, approximating identities, and several axioms to allocate the desired spaces of generalized ...
Shrideh Al-Omari +2 more
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Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019 We study the Tricomi problem for the functional-differential mixed-compound equation $LQu(x,y)=0$ in the class of twice continuously differentiable solutions.
Alexandr Nikolaevich Zarubin +1 more
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Acta Scientiarum: Technology, 2014 In this paper, we introduce and investigate relationship among I-statistically Delta_r^s -convergent, I-lambda-statistically Delta_r^s-convergent and I-[V, lambda, Delta_r^s]-summable sequences respectively over normed linear ...
Hemen Dutta +2 more
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Taylor theory associated with Hahn difference operator
Journal of Inequalities and Applications, 2020 In this paper, we establish Taylor theory based on Hahn’s difference operator D q , ω $D_{q,\omega}$ which is defined by D q , ω f ( t ) = f ( q t + ω ) − f ( t ) t ( q − 1 ) + ω $D_{q,\omega}f(t)=\frac{f(qt+\omega)-f(t)}{t(q-1)+\omega}$ , t ≠ ω 1 − q $t\
Karima Oraby, Alaa Hamza
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Characteristic Classes for Difference Operators [PDF]
Compositio Mathematica, 1999 We introduce and describe the characteristic class of a difference operator over the difference field (k((t)),τ). Here k is an algebraically closed field of characteristic zero and τ is the k-linear automorphism of k((t)) defined by τ(t)=t/(1+t). The approach is based on the characterization of simple difference operators in terms of their eigenvalues.
Levelt, A.H.M., Fahim, A.
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A new eigenvalue problem for the difference operator with nonlocal conditions
Nonlinear Analysis, 2019 In the paper, the spectrum structure of one-dimensional differential operator with nonlocal conditions and of the difference operator, corresponding to it, has been exhaustively investigated.
Mifodijus Sapagovas +3 more
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On spectral properties of a nonselfadjoint difference operator [PDF]
Компьютерные исследования и моделирование, 2010 The eigenvalue problem for a nonselfadjoint difference operator with nonconstant coefficient is considered. The main peculiarity of the problem is that its solution satisfies a two-point nonlocal boundary condition.
Andrey Yur'evich Mokin
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