Danilo Blanush Serb. Danilo Blanush ; December 7, 1903, Osijek - August 8, 1987, Zagreb ) - Yugoslav mathematician , physicist , engineer, professor at the University of Zagreb .
| Danilo Blanush | |
|---|---|
| Danilo Blanush | |
| Date of Birth | December 7, 1903 |
| Place of Birth | Osijek |
| Date of death | August 8, 1987 ( 83) |
| Place of death | Zagreb |
| A country | |
| Scientific field | math , physics |
| Place of work | |
| Alma mater | |
| Known as | discoverer of snarks Blanushi |
| Awards and prizes | Boshkovich Prize (1960). |
Born into a Serbian family in Osijek , who was at that time in Austria-Hungary (now Croatia ). He studied at elementary schools in Vienna and Steyr in Austria , then - at the gymnasiums of Osijek and Zagreb . He studied engineering, mathematics and physics in Zagreb and Vienna .
He began his teaching and scientific career in Zagreb. In 1943 he defended a doctoral dissertation in Bessel functions at the University of Zagreb. In the 1957-1958 academic year, he served as dean of the Faculty of Electrical Engineering of the University of Zagreb . In 1960, he won the Boschkovich Prize.
Content
Math Studies
In mathematics, he is best known for having found the second and third shells in 1946 , which became known as the Blanushi shells ; previously only one snark was known - Count Petersen , the discovery of two new snarks contributed to the emergence of a new field of research in graph theory .
Among Blanouchi's other mathematical studies are works on isometric immersion of a two-dimensional Lobachevsky surface in six - dimensional Euclidean space , works on the theory of Bessel functions , differential geometry and graph theory . The results of his research were published in the Japanese mathematical encyclopedia Sugaku jiten in Tokyo by Iwanami Shoten in 1962 .
His Erdös number is 6.
Physics Research
Physical works relate mainly to the theory of relativity . In particular, he discovered a significant error in the equations for absolute heat (Q) and temperature (T) in phenomenological relativistic thermodynamics , first published by Max Planck in the journal Annalen der Physik in 1908 and widely disseminated in scientific and educational literature:
- Q0 and T0 have the corresponding classical values and a = (1-v 2 / c 2 ) 1/2 , so with respect to Q = Q0a, T = T0a , in reality there should be Q = Q0 / a, T = T0 / a .
The correction was published in the Yugoslav physical and mathematical journal Glasnik in the article "Sur les paradoxes de la notion d'énergie" in 1947 , however, this publication was noticed only in 1960 and only after that a mass correction of the equation was carried out (the error is often mistakenly attributed to Heinrich Ott ).
Notes
- ↑ Record # 12176745d // general catalog of the National Library of France