Thread by @fermatslibrary

Bernhard Riemann died in 1866 at the age of 39. Here is a list of things named after him.

1/8
Riemann bilinear relations
Riemann conditions
Riemann form
Riemann function
Riemann–Hurwitz formula
Riemann matrix
Riemann operator
Riemann singularity theorem
Riemann surface

2/8
Compact Riemann surface
The tangential Cauchy–Riemann complex
Zariski–Riemann space
Cauchy–Riemann equations
Riemann integral
Generalized Riemann integral
Riemann multiple integral
Riemann invariant
Riemann mapping theorem
Measurable Riemann mapping theorem
Riemann problem

3/8
Riemann solver
Riemann sphere
Riemann–Hilbert correspondence
Riemann–Hilbert problem
Riemann–Lebesgue lemma
Riemann–Liouville integral
Riemann–Roch theorem
Arithmetic Riemann–Roch theorem
Riemann–Roch theorem for smooth manifolds
Grothendieck–Hirzebruch–Riemann–Roch theorem

4/8
Hirzebruch–Riemann–Roch theorem
Riemann–Stieltjes integral
Riemann series theorem
Riemann sum
Riemann–von Mangoldt formula
Riemann hypothesis
Generalized Riemann hypothesis
Grand Riemann hypothesis
Riemann hypothesis for curves over finite fields
Riemann theta function

5/8
Riemann Xi function
Riemann zeta function
Riemann–Siegel formula
Riemann–Siegel theta function
Free Riemann gas
Riemann invariant
Riemann–Cartan geometry
Riemann–Silberstein vector
Riemann-Lebovitz formulation
Riemann curvature tensor
Riemann tensor

6/8
Pseudo-Riemannian manifold
Riemannian bundle metric
Riemannian circle
Riemannian cobordism
Riemannian connection
Riemannian cubic
Riemannian cubic polynomials
Riemannian foliation
Riemannian geometry
Fundamental theorem of Riemannian geometry

7/8
Riemannian graph
Riemannian group
Riemannian holonomy
Riemannian manifold also called Riemannian space
Riemannian metric tensor
Riemannian Penrose inequality
Riemannian polyhedron
Riemannian singular value decomposition
Riemannian submanifold
Riemannian submersion

8/8
Riemannian volume form
Riemannian wavefield extrapolation
Sub-Riemannian manifold
Riemannian symmetric space
Riemann's differential equation
Riemann's existence theorem
Riemann's explicit formula
Riemann's minimal surface
Riemann's theorem on removable singularities