Oscar (Oskar) Xavier Schlömilch
(1823–1901) was a German mathematician, born in Weimar
, working in mathematical analysis
. He took a doctorate at the University of Jena
in 1842, and became a professor at Dresden Polytechnic
He is now known as the eponym of the Schlömilch function, a kind of Bessel function. He was also an important textbook writer, and editor of the journal Zeitschrift für Mathematik und Physik, of which he was a founder in 1856.
He published in 1868 for the first time the dissection paradox, earlier invented by Sam Loyd.