Richard Courant

Richard Courant (January 8, 1888 – January 27, 1972) was a German-American mathematician. He is best known for the book What is Mathematics?, which he wrote with Herbert Robbins. This book helped many people learn about math in a clear and exciting way.

Courant studied many important areas of mathematics, such as real analysis, mathematical physics, the calculus of variations, and partial differential equations. His work in these areas still influences math and science today.

Courant also started an institute named after him institute now bearing his name. This place remains a spot where mathematicians and scientists can work and discover new things.

Biography

Richard Courant was born in Lublinitz, in the Prussian Province of Silesia. This area is now part of Poland. He studied at several universities, including the University of Göttingen. There, he became assistant to the famous mathematician David Hilbert and earned his doctorate in 1910. After serving briefly in World War I, he returned to academia.

Later, Courant founded the Mathematical Institute at the University of Göttingen.

Due to political reasons, Courant left Germany in 1933 and moved to New York University in 1936. There, he established an institute for advanced studies in applied mathematics. This institute later became known as the Courant Institute of Mathematical Sciences. He wrote several important books, including What is Mathematics? with Herbert Robbins. His work continues to influence the field of mathematics today.

Perspective on mathematics

Richard Courant believed that mathematicians must prove ideas with careful reasoning, even when experiments show something seems to work. He said that just because something looks right in a lab doesn’t mean it’s truly proven. Only a solid mathematical proof can make sure that our ideas about how nature works are correct and make sense.

Personal life

Richard Courant married Nelly Neumann in 1912, but they divorced in 1916. In 1919, he married Nerina Runge, and they had four children. Their children included Ernest, a particle physicist; Gertrude, a biologist; Hans, who worked on the Manhattan Project; and Leonore, a professional violist.

Publications

Richard Courant wrote many important books about mathematics. One of his most famous books is What is Mathematics?, which he wrote with Herbert Robbins. He also wrote books about calculus and mathematical physics with other mathematicians, such as David Hilbert and Fritz John. These books help people learn and understand complex math ideas.

His works include:

• Differential and Integral Calculus (Vol. I and II)
• Introduction to Calculus and Analysis (Vol. I, II/1, and II/2)
• Methods of Mathematical Physics (Vol. I and II) with David Hilbert
• Supersonic Flow and Shock Waves with K. O. Friedrichs