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A Hybrid ISSA-XGBoost Model for Predicting Wellbore Leakage. [PDF]

open access: yesSensors (Basel)
Bai K   +5 more
europepmc   +1 more source

Bounds for Initial Value Problems

Journal of Applied Mechanics, 1973
A new method has been developed for finding rigorous upper and lower bounds to the solution of a wide class of initial value problems. The method is applicable to initial value problems of the following type: x(¨t)+f(t,x,x)˙=0,x(0)=X0,x(˙0)=V0, where f is continuous with continuous first derivatives, Lipschitzian, and ∂f/∂x ≥ 0.
Bell, C. A., Appl, F. C.
openaire   +1 more source

On the numerical study of nonlinear initial-boundary value problems or initial-value problems

Applied Mathematics and Computation, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zaki F. A. El-Reheem, A. H. Nasser
openaire   +1 more source

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