In this study, Homotopy Perturbation Method (HPM) is proposed, analyzed and developed to solve the fuzzy linear Cauchy reaction-diffusion equation with the fuzzy initial condition. HPM allows for the solution of the fuzzy linear Cauchy reaction-diffusion problem be calculated in the form of series function in which the ingredient can be easily determined and it will be constructed and formulated by using the properties of fuzzy set theory. A numerical experiment is investigated to verify convergence results for comparative purpose with the analytical solution of the given problem to illustrate the efficacy and the capability of the proposed method.
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