Abstract
Group action is defined to support Cayley’s claim that every group is isomorphic to a suitable subgroup of a symmetric group. Group actions have a wide range of applications, including the analysis of symmetries of geometric objects and algorithms and cryptographic systems. In 1965, Zadeh introduced the concept of fuzzy sets and provided a mathematical formulation for various concepts in this area. Since then, the concept of fuzziness has been integrated into several branches of mathematics to address the uncertainties of real-life scenarios. This article introduces the concept of group action in a fuzzy environment, termed fuzzy $$\mathcal {G}$$ -subacts. The study provide the concept of fuzzy $$\mathcal {G}$$ -orbits and fuzzy $$\mathcal {G}$$ -stabilizers and clearly outlines fuzzy permutation representations of $$\mathcal {G}$$ and fuzzy $$\mathcal {G}$$ -morphisms. The research findings significantly contributes to the understanding of fuzzy $$\mathcal {G}$$ -congruences and fuzzy quotient $$\mathcal {G}$$ -subacts with the help of fuzzy $$\mathcal {G}$$ -partitions. This approach not only refines the underlying theories but also opens up new possibilities for practical implementation. Thus, the study demonstrates how the more complex fuzzy theory can expand and enrich the mathematical structures of abstract algebra, making them highly applicable.