# Investigating a Class of Nonlinear Fractional Differential Equations and Its Hyers-Ulam Stability by Means of Topological Degree Theory

> Research article (Numerical Functional Analysis and Optimization, 2019) · cited 33× · AI/ML

**Wikidata**: [openalex:W2942744323](https://www.wikidata.org/wiki/openalex:W2942744323)  
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