Results 1 to 10 of about 49,069 (200)

Kernel Ordinary Differential Equations [PDF]

open access: greenJournal of the American Statistical Association, 2021
Ordinary differential equation (ODE) is widely used in modeling biological and physical processes in science. In this article, we propose a new reproducing kernel-based approach for estimation and inference of ODE given noisy observations. We do not assume the functional forms in ODE to be known, or restrict them to be linear or additive, and we allow ...
Dai, Xiaowu, Li, Lexin
openaire   +8 more sources

A Universal Ordinary Differential Equation [PDF]

open access: yesLogical Methods in Computer Science, 2020
An astonishing fact was established by Lee A. Rubel (1981): there exists a fixed non-trivial fourth-order polynomial differential algebraic equation (DAE) such that for any positive continuous function $\varphi$ on the reals, and for any positive ...
Olivier Bournez, Amaury Pouly
doaj   +8 more sources

High-concurrency tri-mode memristor-based ordinary differential equation solver [PDF]

open access: yesNature Communications
Ordinary differential equations (ODEs) are widely used in science, engineering, and mathematics, but their numerical solution on traditional Von Neumann hardware is time- and energy-consuming, especially for high-order ODEs.
Lianfeng Yu   +12 more
doaj   +2 more sources

RNA velocity prediction via neural ordinary differential equation [PDF]

open access: yesiScience
Summary: RNA velocity is a crucial tool for unraveling the trajectory of cellular responses. Several approaches, including ordinary differential equations and machine learning models, have been proposed to interpret velocity. However, the practicality of
Chenxi Xie   +7 more
doaj   +2 more sources

In silico ordinary differential equation/partial differential equation hemodialysis model estimates methadone removal during dialysis [PDF]

open access: yesJournal of Pain Research, 2015
Oscar A Linares,1 William E Schiesser,2 Jeffrey Fudin,3–6 Thien C Pham,6 Jeffrey J Bettinger,6 Roy O Mathew,6 Annemarie L Daly7 1Translational Genomic Medicine Lab, Plymouth Pharmacokinetic Modeling Study Group, Plymouth, MI, 2Department of ...
Linares OA   +6 more
doaj   +2 more sources

On classical symmetries of ordinary differential equations related to stationary integrable partial differential equations [PDF]

open access: yesOpuscula Mathematica, 2021
We study the relationship between the solutions of stationary integrable partial and ordinary differential equations and coefficients of the second-order ordinary differential equations invariant with respect to one-parameter Lie group.
Ivan Tsyfra
doaj   +1 more source

Ordinary Differential Equations [PDF]

open access: yes, 2021
AbstractIn this chapter, we discuss a first application of the time derivative operator constructed in the previous chapter. More precisely, we analyse well-posedness of ordinary differential equations and will at the same time provide a Hilbert space proof of the classical Picard–Lindelöf theorem (There are different notions for this theorem.
Christian Seifert   +2 more
openaire   +2 more sources

Stiff neural ordinary differential equations [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2021
Neural Ordinary Differential Equations (ODEs) are a promising approach to learn dynamical models from time-series data in science and engineering applications. This work aims at learning neural ODEs for stiff systems, which are usually raised from chemical kinetic modeling in chemical and biological systems.
Suyong Kim   +4 more
openaire   +4 more sources

Uniqueness criteria for ordinary differential equations with a generalized transversality condition at the initial condition

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
In this paper, we present some uniqueness results for systems of ordinary differential equations. All of them are linked by a weak transversality condition at the initial condition, which generalizes those in the previous literature. Several examples are
José Ángel Cid   +2 more
doaj   +1 more source

On the boundedness of solution of the second order ordinary differential equation with damping term and involution

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
In the present paper the initial value problem for the second order ordinary differential equation with damping term and involution is investigated. We obtain equivalent initial value problem for the fourth order ordinary differential equations to the ...
A. Ashyralyev   +2 more
doaj   +1 more source

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