That entity, a generalization of the inverse matrix, is a "pseudoinverse" named for this man and Moore.
This scientist developed a tetrad-based notation  for general relativity along with Ezra Newman. This man is the second namesake of a mathematical entity which, for a matrix A, is denoted A-dagger. That entity, a generalization of the inverse matrix, is a "pseudoinverse" named for this man and Moore. In order to explain the isotropy of the universe as well as the origin of the "arrow of time," this scientist proposed the (*) Weyl curvature hypothesis. He also conjectured that there are no naked singularities other than the Big Bang, which is known as the cosmic censorship hypothesis. He is also known for his books on the relationship between physics and consciousness, including The Emperor's New Mind. For 10 points, name this English physicist and mathematician who discovered two shapes which aperiodically tile the plane, his namesake "tiles."
This scientist developed a tetrad-based notation  for general relativity along with Ezra Newman.
Roger Penrose