Malcolm Ludvigsen
Encyclopedia
Malcolm Ludvigsen is an artist and scientist. He is an oil-painter with a particular interest in figure and en plein-air painting, and professor of mathematics with a special interest in relativity
, black hole
s, the positive energy theorem
and cosmology
. He is the author of a book on general relativity. He is known for his work with Ezra T. Newman
on H-space, and his work with Vickers on the positive energy theorem
for Bondi mass.
Theory of relativity
The theory of relativity, or simply relativity, encompasses two theories of Albert Einstein: special relativity and general relativity. However, the word relativity is sometimes used in reference to Galilean invariance....
, black hole
Black hole
A black hole is a region of spacetime from which nothing, not even light, can escape. The theory of general relativity predicts that a sufficiently compact mass will deform spacetime to form a black hole. Around a black hole there is a mathematically defined surface called an event horizon that...
s, the positive energy theorem
Positive energy theorem
In general relativity, the positive energy theorem states that, assuming the dominant energy condition, the mass of an asymptotically flat spacetime is non-negative; furthermore, the mass is zero only for Minkowski spacetime...
and cosmology
Cosmology
Cosmology is the discipline that deals with the nature of the Universe as a whole. Cosmologists seek to understand the origin, evolution, structure, and ultimate fate of the Universe at large, as well as the natural laws that keep it in order...
. He is the author of a book on general relativity. He is known for his work with Ezra T. Newman
Ezra T. Newman
Ezra Ted Newman is an American physicist, known for his many contributions to general relativity theory. He is Professor Emeritus at the University of Pittsburgh...
on H-space, and his work with Vickers on the positive energy theorem
Positive energy theorem
In general relativity, the positive energy theorem states that, assuming the dominant energy condition, the mass of an asymptotically flat spacetime is non-negative; furthermore, the mass is zero only for Minkowski spacetime...
for Bondi mass.