---
title: "List of things named after Roger Penrose"
chunk: 1/1
source: "https://en.wikipedia.org/wiki/List_of_things_named_after_Roger_Penrose"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T04:01:36.509670+00:00"
instance: "kb-cron"
---

This is a list of things named for the British scientist Roger Penrose:


== Mathematics ==
Moore–Penrose inverse, the most widely known generalization of the inverse matrix in particular linear algebra
Penrose graphical notation, a visual depiction of multilinear functions or tensors
Penrose stairs, impossible object (co-created with his father Lionel Penrose)
Penrose tiling, an example of an aperiodic tiling
Penrose triangle, impossible object (co-created with his father Lionel Penrose)
Penrose unilluminable room, first solution to the illumination problem


== Physics ==
Diósi–Penrose model, possible solution to the measurement problem
Geroch–Held–Penrose formalism
Newman–Penrose formalism, a set of notation for general relativity
Penrose diagram, a two-dimensional diagram capturing the causal relations between different points in spacetime
Penrose inequality, estimation of the mass of a spacetime
Penrose conjecture
Penrose interpretation, speculation about the relationship between quantum mechanics and general relativity
Penrose process, or Penrose mechanism, a theoretical means whereby energy can be extracted from a rotating black hole
Penrose singularity theorem in general relativity
Penrose transform, a complex analogue of the Radon transform in theoretical physics
Penrose–Terrell effect, visual distortion according to the special theory of relativity
Penrose–Ward correspondence
Rietdijk–Putnam–Penrose argument, version of Rietdijk–Putnam argument


== Other ==
Penrose–Lucas argument, a logical argument
Penrose tennis ball, 1995, a novel economical design in which the two halves that cup to form the ball very nearly tile the plane.