Horst Sachs
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Horst Sachs | |
|---|---|
 | |
| Born | 27 March 1927 Magdeburg, Germany |
| Died | 25 April 2016 (aged 89) Ilmenau, Germany |
| Alma mater | Martin Luther University Halle-Wittenberg |
| Known for | Sachs subgraph |
| Scientific career | |
| Fields | Mathematics |
| Institutions | Technische Universität Ilmenau |
| Academic advisors | Herbert Grötzsch |
| Notable students | Hansjoachim Walther Michael Stiebitz |
Horst Sachs (27 March 1927 – 25 April 2016) was a German mathematician, an expert in graph theory, a recipient of the Euler Medal (2000).[1]
He earned the degree of Doctor of Science (Dr. rer. nat.) from the Martin-Luther-Universität Halle-Wittenberg in 1958.[2] Following his retirement in 1992, he was professor emeritus at the Institute of Mathematics of the Technische Universität Ilmenau.[3]
His encyclopedic book in spectral graph theory, Spectra of Graphs. Theory and Applications (with Dragos Cvetković and Michael Doob) has several editions and was translated in several languages.[4][5][6][7][8][9]
Two theorems in graph theory bear his name. One of them relates the coefficients of the characteristic polynomial of a graph to certain structural features of the graph. Another one is a simple relation between the characteristic polynomials of a graph and its line graph. Sachs subgraphs are also named after Sachs.
