Existence of two positive periodic solutions for a neutral multi-delay logarithmic population model with a periodic harvesting rate
Summary: By using an abstract existence result based on coincidence degree theory for \(k\)-set contractive mappings, a new result is obtained for the existence of at least two positive periodic solutions for a neutral multidelay logarithmic population model with a periodic harvesting rate. An example is given to illustrate the effectiveness of the result.
scientific article; zbMATH DE number 6134086