Results 151 to 160 of about 320,872 (183)
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Polynomial approximations of solutions of higher-order operator-differential equations
Ukrainian Mathematical Journal, 1994Summary: The Cauchy problem for higher-order differential-operator equations is considered in a Banach space. A polynomial approximation is constructed.
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Integro-Differential Equation with a Higher-Order Two-Dimensional Whitham Operator
Journal of Mathematical Sciences, 2021zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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On Higher-Order Differential Operators with Singularity inside the Interval
Mathematical Notes, 2002Differential equations with singularities inside the interval arise in different areas of mathematics and in applications. A wide class of differential equations with turning points can be reduced to the equations considered by the author. This paper is concerned with the non-selfadjoint boundary value problem for the studied differential equation with
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On higher-order differential operators with a singular point
Inverse Problems, 1993The paper is concerned with a very specific inverse spectral problem. This problem is formulated as follows: Given the Weyl matrix \({\mathfrak M}(\lambda)\), construct a differential operator \(l\) associated with the higher-order differential equation \[ ly\equiv y^{(n)}+ \sum^{n- 2}_{j=0} \left({\nu_ j\over x^{n-j}}+ q_ j(x)\right) y^{(j)}=\lambda y\
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Reconstruction of higher-order differential operators on compact graphs
Doklady Mathematics, 2008In this paper, the author studies the inverse spectral problem for differential operators of any order on compact trees (i.e., on graphs without cycles). As the basis spectral characteristics, the author introduces and studies the Titchmarsh--Weyl matrices, which are a generalization of the Titchmarsh--Weyl functions (\(m\)-functions) for the classical
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On higher-order differential operators with a regular singularity
Sbornik: Mathematics, 1995Summary: A boundary-value problem for the non-self-adjoint differential operators \[ \ell y \equiv y^{(n)} + \sum^{n - 2}_{j = 0} \left( {\nu_j \over x^{n - j}} + q_j(x) \right) y^{(j)}, \quad 0 < x < T, \] with a regular singularity at zero is investigated.
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Spectral Analysis of Higher-Order Differential Operators II: Fourth-Order Equations
Journal of the London Mathematical Society, 1999Summary: The author investigates location and nature of the spectrum of the fourth-order selfadjoint equation \[ (p_0 y'')''+ (p_1 y')'+ qy= zwy \] subject to certain asymptotic assumptions on the coefficients. The main tools are the theory of asymptotic integration and the Titchmarsh-Weyl \(M\)-matrix.
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Reduced order and surrogate models for gravitational waves
Living Reviews in Relativity, 2022Manuel Tiglio, Aaron Villanueva
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Cancer treatment and survivorship statistics, 2014
Ca-A Cancer Journal for Clinicians, 2014Carol E Desantis +2 more
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