Hermann Brunn

Karl Hermann Brunn (1 August 1862 – 20 September 1939) was a German mathematician. He helped us learn more about many parts of math.

Brunn is best known for his work in convex geometry. This is a part of geometry that looks at solid shapes without any dents. One of his big ideas is called the Brunn–Minkowski inequality. It helps mathematicians learn about how the sizes of shapes change when they are put together.

Brunn also studied knot theory. This is the study of how loops can be tied and untied in three dimensions. In 1892, he wrote an article called “Über Verkettung.” In it, he showed special kinds of linked loops now called Brunnian links. These links are special because if you take away any one loop, all the other loops come undone.

His work still influences mathematicians today. It shows how important his ideas were and how they help us understand geometry and knots better.

Life and work

Hermann Brunn was born in Rome and grew up in Munich. He studied mathematics and physics at the Ludwig-Maximilians-Universität München. He finished his studies in 1887 with a thesis about shapes. He later became a teacher and kept working in mathematics.