TOPOLOGICAL DEGREE AND THE STABILITY OF A CLASS OF VOLTERRA INTEGRAL EQUATIONS

Author(s):  
Patrizia Marocco
2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Eleonora Messina ◽  
Antonia Vecchio

We consider Volterra integral equations on time scales and present our study about the long time behavior of their solutions. We provide sufficient conditions for the stability and investigate the convergence properties when the kernel of the equations vanishes at infinity.


Mathematics ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1193
Author(s):  
Suzan Cival Buranay ◽  
Mehmet Ali Özarslan ◽  
Sara Safarzadeh Falahhesar

The main aim of this paper is to numerically solve the first kind linear Fredholm and Volterra integral equations by using Modified Bernstein–Kantorovich operators. The unknown function in the first kind integral equation is approximated by using the Modified Bernstein–Kantorovich operators. Hence, by using discretization, the obtained linear equations are transformed into systems of algebraic linear equations. Due to the sensitivity of the solutions on the input data, significant difficulties may be encountered, leading to instabilities in the results during actualization. Consequently, to improve on the stability of the solutions which imply the accuracy of the desired results, regularization features are built into the proposed numerical approach. More stable approximations to the solutions of the Fredholm and Volterra integral equations are obtained especially when high order approximations are used by the Modified Bernstein–Kantorovich operators. Test problems are constructed to show the computational efficiency, applicability and the accuracy of the method. Furthermore, the method is also applied to second kind Volterra integral equations.


2018 ◽  
Vol 23 (7) ◽  
pp. 2695-2708 ◽  
Author(s):  
Dajana Conte ◽  
◽  
Raffaele D'Ambrosio ◽  
Beatrice Paternoster ◽  

2012 ◽  
Vol 2012 ◽  
pp. 1-16
Author(s):  
Wenxue Li ◽  
Meng Liu ◽  
Ke Wang

It is well known that Itô’s formula is an essential tool in stochastic analysis. But it cannot be used for general stochastic Volterra integral equations (SVIEs). In this paper, we first introduce the concept of quasi-Itô process which is a generalization of well-known Itô process. And then we extend Itô’s formula to a more general form applicable to some kinds of SVIEs. Furthermore, the stability in probability for some SVIEs is analyzed by the generalized Itô’s formula. Our work shows that the generalized Itô’s formula is powerful and flexible to use in many relevant fields.


Mathematics ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 1133
Author(s):  
Eleonora Messina ◽  
Youssef N. Raffoul ◽  
Antonia Vecchio

This paper describes the effect of perturbation of the kernel on the solutions of linear Volterra integral equations on time scales and proposes a new perspective for the stability analysis of numerical methods.


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