Riemann

American  

[ree-mahn, ree-mahn, -muhn] / ˈriˌmɑn, ˈri mɑn, -mən /

noun

1. Georg Friedrich Bernhard 1826–66, German mathematician.

---

Riemann British  

/ ˈriːman /

noun

1. Georg Friedrich Bernhard (ˈɡeːɔrk ˈfriːdrɪç ˈbɛrnhart). 1826–66, German mathematician whose non-Euclidean geometry was used by Einstein as a basis for his general theory of relativity

---

Riemann Scientific  

/ rē′mən,-män′ /

1. German mathematician who originated the non-Euclidean system of geometry that is now named after him. Riemann also studied optics and electromagnetic theory, and his work influenced Albert Einstein's theory of General Relativity.

---

Other Word Forms

Derived Forms

• Riemannian
  adjective

Example Sentences

In the 19th century, mathematician Bernhard Riemann proposed that perceptual color spaces are not flat or straight, but curved.

From Science Daily • Jun. 7, 2026

In the 19th century, mathematician Bernhard Riemann proposed that perceptual spaces could be curved rather than flat.

From Science Daily • Feb. 23, 2026

Rajesh Bhatia, one of the three directors at Riemann Labs, according to the company's website, told Reuters by phone that he wasn't aware of the matter.

From Reuters • Aug. 1, 2023

The problem is similar to — but distinct from — the Riemann hypothesis, which is considered one of the most important problems in mathematics.

From Scientific American • Nov. 15, 2022

Riemann imagined a translucent ball sitting atop the complex plane, with the south pole of the ball touching zero.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife