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# The Asymptotic And Oscillatory Behaviour Of Difference And Differential Equations

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Doctoral Thesis / Dissertation from the year 2009 in the subject Mathematics - Applied Mathematics, London Metropolitan University, language: English, abstract: This thesis deals with the asymptotic and oscillatory behaviour of the solutions of certain differential and difference equations. It mainly consists of three parts. The first part is to study the asymptotic behaviour of certain differential equations. The second part is to look for oscillatory criteria for certain nonlinear neutral differential equations. And the third part is to establish new criteria for a class of nonlinear neutral difference equations of any order with continuous variable and another type of higher even order nonlinear neutral difference equations to be oscillatory. A functional differential equation is a differential equation involving the values of the unknown functions at present, as well as at past or future time. The word "time" here stands for the independent variable. In the thesis, the concept of a functional differential equation is confined to ordinary differential equations, although it suits partial ones as well. Functional differential equations can be classified into four types according to their deviations: retarded, advanced, neutral and mixed. A neutral equation is one in which derivative of functionals of the past history and the present state are involved, but no future states occur in the equation. The order of a differential equation is the order of the highest derivative of the unknown function. A difference equation is a specific type of recurrence relation, which is an equation that defines a sequence recursively: each term of the sequence is defined as a function of the preceding terms. On the other hand, difference equations can be thought of as the discrete analogue of the corresponding differential equations. By analogy with differential equations, difference equations also can be classified into four types: delay, advanced, neutral, and mixed. The or

• | Author: Shuhui Wu
• | Publisher: Grin Verlag
• | Publication Date: Feb 03, 2022
• | Number of Pages: 198 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 3346600971
• | ISBN-13: 9783346600974
Author:
Shuhui Wu
Publisher:
Grin Verlag
Publication Date:
Feb 03, 2022
Number of pages:
198 pages
Language:
English
Binding:
Paperback
ISBN-10:
3346600971
ISBN-13:
9783346600974