In this paper, the authors introduce two new classes of series type additive functional Equations (FEs). The first class of equations is derived from the sum of the squares of the …
The susceptible–infected–recovered–vaccinated–deceased (SIRVD) epidemic compartment model extends the SIR model to include the effects of vaccination campaigns and time …
Solving a system of Caputo-Hadamard fractional differential equations via Perov’s fixed point theorem Page 1 DOI: 10.2478/awutm-2025-0001 Annals of West University of Timisoara …