Heinrich Wilhelm Feodor Deahna (8 July 1815 – 8 January 1844) was a German mathematician.. He is known for providing proof of what is now known as Frobenius theorem in

differential topology In mathematics, differential topology is the field dealing with the topological properties and smooth properties of smooth manifolds. In this sense differential topology is distinct from the closely related field of differential geometry, which ...

, which he published in

Crelle's Journal ''Crelle's Journal'', or just ''Crelle'', is the common name for a mathematics journal, the ''Journal für die reine und angewandte Mathematik'' (in English: ''Journal for Pure and Applied Mathematics''). History The journal was founded by Au ...

in 1840.. Deahna was born near Bayreuth on July 8, 1815, and was a student at the

University of Göttingen The University of Göttingen, officially the Georg August University of Göttingen, (german: Georg-August-Universität Göttingen, known informally as Georgia Augusta) is a public research university in the city of Göttingen, Germany. Founded i ...

in 1834. In 1843 he became an assistant mathematics teacher at the

Fulda Fulda () (historically in English called Fuld) is a town in Hesse, Germany; it is located on the river Fulda and is the administrative seat of the Fulda district (''Kreis''). In 1990, the town hosted the 30th Hessentag state festival. Histor ...

Gymnasium, but he died soon afterwards in Fulda, on January 8, 1844.

Selected works

* Deahna, F. "Über die Bedingungen der Integrabilitat ....", ''J. Reine Angew. Math.'' 20 (1840) 340-350.

References

1815 births 1844 deaths 19th-century German mathematicians Differential geometers Mathematicians from the Kingdom of Bavaria {{Germany-mathematician-stub