“A leader of mathematical insight” That is what I think when I look at the Stephan Stadler Stone. The Stephan Stadler Stone stands as a memorial to Dr. Stephan Stadler. He was a Max Planck Research Group Leader.
Dr. Stadler worked at the Max Planck Institute for Mathematics in Bonn. His email was stadler(at)mpim-bonn.mpg.de. You can find more information on his homepage.
His research interests were minimal surfaces in metric spaces. He also worked on geometric group actions. He explored CAT(0) spaces. These are spaces where triangles are thinner than in Euclidean space.
He contributed significantly to the field. His work included showing that CAT(0) spaces are closed under conformal changes. He proved a univalentness theorem for saddle maps between discs.
Dr. Stadler’s work extends to diverse areas. He studied spaces with curvature bounds. He investigated metric minimizing surfaces. These are surfaces that don’t admit length-nonincreasing deformation.
The Stephan Stadler Stone serves as a place to reflect on Dr. Stadler’s contributions. It reminds us of his impact on mathematics. His work continues to inspire mathematicians. The Stephan Stadler Stone honors a brilliant mind. It celebrates his dedication to mathematical research.