Results 21 to 30 of about 17,700,714 (250)

Structure Theory for Second Order 2D Superintegrable Systems with 1-Parameter Potentials [PDF]

open access: yes, 2009
The structure theory for the quadratic algebra generated by first and second order constants of the motion for 2D second order superintegrable systems with nondegenerate (3-parameter) and or 2-parameter potentials is well understood, but the results for ...
Willard Miller Jr.   +7 more
core   +2 more sources

Second-Order Sliding Mode Guidance Law considering Second-Order Dynamics of Autopilot

open access: yesJournal of Control Science and Engineering, 2019
Aiming at the requirement that some missiles need to meet certain impact angles when attacking targets, we consider the second-order dynamic characteristics of autopilot, thereby proposing a second-order sliding mode guidance law with impact angle ...
Kuanqiao Zhang, Suochang Yang
doaj   +1 more source

Continuous Adaptive Finite Reaching Time Control and Second-Order Sliding modes [PDF]

open access: yes, 2013
This paper focuses on the design of adaptive finite reaching time control for first- and second-order dynamic systems with perturbation terms given in a regressive form. The uncertainties considered here are assumed to be bounded with unknown bounds. The
Spurgeon, Sarah K.   +3 more
core   +1 more source

Oscillatory behavior of the second order noncanonical differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
Establishing monotonical properties of nonoscillatory solutions we introduce new oscillatory criteria for the second order noncanonical differential equation with delay/advanced argument \begin{equation*} (r(t)y'(t))'+p(t)y(\tau(t))=0. \end{equation*}
Blanka Baculíková
doaj   +1 more source

A second order cell method for Poisson's equation [PDF]

open access: yes, 2010
The Cell Method, similar to the Finite Integration Technique, is a well-established numerical method for the solution of field problems, however an often raised criticism is that it is limited to constant fields within elements.
Alotto, P.   +7 more
core   +1 more source

Improved Hille-Type Oscillation Criteria for Second-Order Quasilinear Dynamic Equations

open access: yesMathematics, 2022
In this work, we develop enhanced Hille-type oscillation conditions for arbitrary-time, second-order quasilinear functional dynamic equations. These findings extend and improve previous research that has been published in the literature.
Taher S. Hassan   +3 more
doaj   +1 more source

A second order logic of existence [PDF]

open access: yes, 1969
Publisher's, offprint versionA. N. Prior in [9] has suggested an approach towards a second order logic of existence where, following medieval logicians, we distinguish “between predicates (like ‘is red’, ‘is hard’, etc.) which entail existence, and ...
Cocchiarella, Nino
core   +1 more source

SATURATED DESIGNS FOR SECOND ORDER MODELS [PDF]

open access: yes, 1994
Construction of saturated designs for different types of second order models are discussed.
Ekman, Claes
core   +1 more source

Maximum Inaccuracies of Second Order [PDF]

open access: yesComputer Science Journal of Moldova, 2015
Let an indirectly measurable variable $Y$ be represented as a function of finite number of directly measurable variables $X_1, \linebreak X_2, ..., X_n$. We introduce maximum absolute and relative inaccuracies of second order of $Y$ -- this idea is a
Kiril Kolikov   +3 more
doaj  

A Single-Step Modified Block Hybrid Method for General Second-Order Ordinary Differential Equations

open access: yesUMYU Scientifica Journal, 2022
A multistep collocation approach is used to derive a single-step modified block hybrid method (MBHM) of order five for solving general second-order initial-value problems (IVPs) of ordinary differential equations (ODEs).
Solomon Ortwer Adee   +1 more
doaj   +1 more source

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