A Study on Approximate Controllability of Hilfer Fractional Stochastic Evolution Equations of Order $1<\beta<2$

Document Type : Research Paper

Authors

Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632014, Tamil Nadu, India.

Abstract

In this paper, we investigate the approximate controllability of Hilfer fractional stochastic evolution equations of order $\beta\in (1,2)$. The main findings are carried out by using fractional calculus, stochastic analysis theory, measure of noncompactness, and the fixed point theorem. At first, we prove the existence of a mild solution for Hilfer fractional stochastic evolution equations, and then we establish the concept of approximate controllability. Finally, we provide an example to illustrate our theoretical results.

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Articles in Press, Accepted Manuscript
Available Online from 12 November 2025
  • Receive Date: 25 April 2024
  • Revise Date: 07 November 2025
  • Accept Date: 09 November 2025