Results 11 to 20 of about 134,735 (211)
An Error Functional Expansion for N-Dimensional Quadrature with an Integrand Function Singular at a Point [PDF]
Mathematics of Computation, 1976 Let If be the integral of f ( x → ) f(\vec x) over an N-dimensional hypercube and Q ( m ) f {Q^{(m)}}f be the approximation to If ...
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Convergence rates for regularization functionals with polyconvex integrands [PDF]
Inverse Problems, 2017 15 pages, no ...
Kirisits, Clemens, Scherzer, Otmar
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Multi-variable integration with a neural network
Journal of High Energy Physics, 2023 In this article we present a method for automatic integration of parametric integrals over the unit hypercube using a neural network. The method fits a neural network to the primitive of the integrand using a loss function designed to minimize the ...
D. Maître, R. Santos-Mateos
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Nonlinear Volterra Integrodifferential Equations from above on Unbounded Time Scales
Mathematics, 2023 The paper is devoted to studying the existence, uniqueness and certain growth rates of solutions with certain implicit Volterra-type integrodifferential equations on unbounded from above time scales.
Andrejs Reinfelds, Shraddha Christian
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Semi-classical Dynamical Triangulations [PDF]
, 2012 For non-critical string theory the partition function reduces to an integral over moduli space after integrating over matter fields. The moduli integrand is known analytically for genus one surfaces.
Ambjorn, Jan, Budd, Timothy G.
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Isoperimetric and Functional Inequalities
Моделирование и анализ информационных систем, 2018 We establish lower estimates for an integral functional$$\int\limits_\Omega f(u(x), \nabla u(x)) \, dx ,$$where \(\Omega\) -- a bounded domain in \(\mathbb{R}^n \; (n \geqslant 2)\), an integrand \(f(t,p) \, (t \in [0, \infty),\; p \in \mathbb{R}^n)\) --
Vladimir S. Klimov
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Nonstandard optimal control problem: case study in an economical application of royalty problem
IJAIN (International Journal of Advances in Intelligent Informatics), 2019 This paper's focal point is on the nonstandard Optimal Control (OC) problem. In this matter, the value of the final state variable, y(T) is said to be unknown.
Wan Noor Afifah Wan Ahmad +6 more
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Mathematics, 2023 Numerical integration is a basic step in the implementation of more complex numerical algorithms suitable, for example, to solve ordinary and partial differential equations.
Boian Alexandrov +4 more
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Properties of Laplace-Stieltjes-type integrals
Математичні Студії, 2023 The properties of Laplace-Stieltjes-type integrals $I(r)=\int_{0}^{\infty}a(x)f(xr)dF(x)$ are studied, where $F$ is a non-negative non-decreasing unbounded continuous on the right function on $[0,\,+\infty)$, $f(z)=\sum_{k=0}^{\infty}f_kz^k$ is an entire
M. M. Sheremeta
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An analysis of the integrand occurring in correlation energy functionals [PDF]
International Journal of Quantum Chemistry, 1994 AbstractAn analysis of the integrand occurring in current density functional calculations is presented, concentrating attention on correlation energy functionals and the atomic regions, i.e., the regions of space surrounding atomic centers. The analysis follows the structure of a previously proposed numerical integration scheme for three‐dimensional ...
FORTUNELLI A, SALVETTI O
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