Ivan Gutman: Dragos Cvetkovic and Theoretical Chemistry


Although not a chemist, Dragos Cvetkovic made several significant contributions to theoretical chemistry (where graph spectra are extensively used in the so-called Huckel molecular orbital theory). The history of Cvetkovic's encounter with chemistry (which coincides with his encounter with the author of this paper) is described, and his chemically relevant papers surveyed. The impact of Cvetkovic's chemical contributions to the work of other scholars is poihted out.