Heinrich Wilhelm Feodor Deahna (1815--1844) was a German mathematician, best known for providing proof of what is now known as Frobenius theorem (differential topology) in 1840.
Heinrich Wilhelm Feodor Deahna (1815--1844) was a German mathematician. He is known for providing proof of what is now known as Frobenius theorem in differential topology, which he published in Crelle's journal in 1840.