Hermann Hankel (14 February 1839 – 29 August 1873) was a German mathematician who was born in Halle, Germany and died in Schramberg (near Tübingen), Imperial Germany.
Hermann Göring | Hermann Hesse | Hermann von Helmholtz | Hermann Nitsch | Hermann Hauser | Hermann Bondi | Hermann Zapf | Hermann Tilke | Hermann Emil Fischer | Walther Hermann Richard Horn | Robert Hermann Schomburgk | Otto Hermann Kahn | Hermann Volrath Hilprecht | Hermann Scherchen | Hermann-Paul | Hermann Kesten | Hermann | Fallschirm-Panzer Division 1 Hermann Göring | Hermann Trophy | Hermann Oberth | Hermann Muthesius | Hermann Joseph Muller | Hermann Goetz | Hermann Cohen | Hermann and Dorothea | Paul Hermann | Hermann Weyl | Hermann von Fehling | Hermann von Eichhorn | Hermann Sudermann |
Under the influence of Weierstrass and Bernhard Riemann this concept and related questions were intensely studied at the end of the 19th century by Hermann Hankel, Paul du Bois-Reymond, Ulisse Dini, Cesare Arzelà and others.