On Two-Point Boundary Value Problems and Fractional Differential Equations via New Quasi-Contractions

M Noorwali, MS Shagari - Mathematics, 2023 - mdpi.com
The aim of this paper is to introduce new forms of quasi-contractions in metric-like spaces
and initiate more general conditions for the existence of invariant points for such operators …

Stability analysis of a new class of series type additive functional equation in Banach spaces: direct and fixed point techniques

P Agilan, K Julietraja, MMA Almazah, A Alsinai - Mathematics, 2023 - mdpi.com
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 …

Mathematics of Epidemics: On the General Solution of SIRVD, SIRV, SIRD, and SIR Compartment Models

R Schlickeiser, M Kröger - Mathematics, 2024 - mdpi.com
The susceptible–infected–recovered–vaccinated–deceased (SIRVD) epidemic compartment
model extends the SIR model to include the effects of vaccination campaigns and time …

[PDF][PDF] Solving a system of Caputo-Hadamard fractional differential equations via Perov's fixed point theorem

AS Nouar, K Nisse, S Beloul - sciendo.com
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 …