About Wilhelm Wirtinger
Wilhelm Wirtinger was an Austrian mathematician, working in complex analysis, geometry, algebra, number theory, Lie groups, and knot theory. In 1907 the Royal Society of London awarded him the Sylvester Medal, for his contributions to the general theory of functions. His first significant work, published in 1896, was on theta functions. During a conversation, Wirtinger attracted the attention of Stanisław Zaremba to a particular boundary value problem, which later became known as the mixed boundary value problem.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.