Andrievsky S. The anomalies of the chemical composition of intermediate-mass stars

The dissertation presents the results published in 39 papers, in which the physical and chemical characteristics of the intermediate-mass stars of the main sequence (spectral classes A-B), and supergiant stars (spectral classes F-G) were investigated. The anomalies of the chemical composition of the Lambda Boo type stars, blue stragglers, cepheids and non-variable supergiants were considered, as well as their connection with evolutionary properties of the intermediate-mass stars. Obtained results were used with the aim to investigate the chemical evolution of galactic disc.