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is a mathematics
Mathematics is the study of quantity, space, structure, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or falsity of conjectures by mathematical proofs, which are arguments sufficient to convince other mathematicians of their validity...
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...
at Victoria University of Wellington
Victoria University of Wellington was established in 1897 by Act of Parliament, and was a former constituent college of the University of New Zealand. It is particularly well known for its programmes in law, the humanities, and some scientific disciplines, but offers a broad range of other courses...
Some of his research interests include General Relativity
General relativity or the general theory of relativity is the geometric theory of gravitation published by Albert Einstein in 1916. It is the current description of gravitation in modern physics...
, Quantum Field Theory
Quantum field theory provides a theoretical framework for constructing quantum mechanical models of systems classically parametrized by an infinite number of dynamical degrees of freedom, that is, fields and many-body systems. It is the natural and quantitative language of particle physics and...
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...
Visser has produced a large number of research papers on the subject of wormholes, gravitational horizons and notably the emerging subject of acoustic metric
In mathematical physics, a metric describes the arrangement of relative distances within a surface or volume, usually measured by signals passing through the region – essentially describing the intrinsic geometry of the region. An acoustic metric will describe the signal-carrying properties...
He is the author of the reference book on the current state of wormhole theory, Lorentzian Wormholes — from Einstein to Hawking
(1996) and co-editor of Artificial Black Holes