📜 Theorem, law or theory

Karhunen–Loève theorem

Teorema de Karhunen-Loève

Date
c. 1946-1947 · confidence medium
Place
Helsinki, Finland
Credited to
Michel Loève y Kari Karhunen
Field
Knowledge & symbols

What was discovered

A theorem of stochastic process theory representing a process as an infinite linear combination of orthogonal functions, analogous to the Fourier series of a function; developed independently by Kari Karhunen and Michel Loève.

What it led to

  • Basis for the continuous version of principal component analysis
  • Widely used in signal processing and data compression
  • Foundation for functional data analysis

Links

Sources✓ verified 2026-09-28