In this research, we provide a mathematical analysis for the novel coronavirus responsible
for COVID-19, which continues to be a big source of threat for humanity. Our fractional-order …

Dengue fever is a disease that has spread all over the world, including Thailand. Dengue is
caused by a virus and there are four distinct serotypes of the virus that cause dengue DENV …

We introduce a new optimal control problem where the controlled dynamical system
depends on multi-order (incommensurate) fractional differential equations. The cost …

Using the recent weighted generalized fractional order operators of Hattaf, a general
fractional optimal control problem without constraints on the values of the control functions is …

Dengue fever is a disease that has spread all over the world, including Thailand. Dengue is
caused by a virus and there are four distinct serotypes of the virus that cause dengue DENV …

Managing degraded-quality materials in a supply chain with a single-vendor and multi-
buyers is prevalent and critical in modern industry. This research addresses the single …

Nesta tese, derivamos o Princípio do Máximo de Pontryagin (PMP) para problemas de
controlo ótimo fracionário e analisamos um modelo matemático fracionário para a dinâmica …