Murray Thomas Batchelor (born 27 August 1961), is an Australian mathematical physicist.
 He holds a position at Chongqing University and a part-time position at the Australian National University jointly between the Department of Theoretical Physics in the Research School of Physics and Engineering and the Mathematical Sciences Institute.
 He is best known for his work in mathematical physics and theoretical physics.
 However, Batchelor has also shown an interest in ancient and modern stromatolites, which has led him on a number of field trips to outback Australia, including to the Pilbara Craton and to Hamelin Pool Marine Nature Reserve.
Ernst Pascual Jordan (] ; 18 October 1902 – 31 July 1980) was a theoretical and mathematical physicist who made significant contributions to quantum mechanics and quantum field theory.
 He contributed much to the mathematical form of matrix mechanics, and developed canonical anticommutation relations for fermions.
 While the Jordan algebra is employed for and is still used in studying the mathematical and conceptual foundations of quantum theory, it has found other mathematical applications.
Nairi Sedrakyan (born 1961 in Ninotsminda, USSR) is an Armenian mathematician involved in national and international Olympiads of mathematics, having been the president of Armenian Mathematics Olympiads, the Leader of Armenian IMO Team, jury member and problem selection committee member of International Mathematical Olympiad, jury member and problem selection committee member of Zhautykov International Mathematical Olympiad (ZIMO), jury member and problem selection committee member of the 1st International Olympiad of Metropolises, the president of International Mathematical Olympiad Tournament of the Towns in Armenia.
 He has also authored a large number of problems proposed in these Olympiads.
 Nairi Sedrakyan is the author of one of the hardest problems ever proposed in the history of International Mathematical Olympiad, 5th problem of 37th International Mathematical Olympiad.
 This problem is considered as one of the hardest problems ever, because none of the members of the strongest teams, i.e. National Olympic Teams of the USA, Russia or China has succeeded to solve it correctly.
 Moreover, the National Olympic Team of People's Republic of China has obtained a cumulative result equal to 0 points and was ranked the 6th in the final ranking of the countries instead of the usual 1st or 2nd place.
 The British 2014 film X+Y, released in the USA as A Brilliant Young Mind, inspired by, Beautiful Young Minds focuses on an English mathematical genius chosen to represent the United Kingdom at the IMO.
 In the film this problem is stated to be the hardest problem ever proposed in the history of International Mathematical Olympiad (minutes 9:40-10:30).
 Other outstanding results of the author are having 4 problems in the Shortlist of the worldwide selected 27 problems of the 40th IMO (1999) in Romania and having 5 medals winner students in 41st IMO in South Korea, i.e. 2 silver medals and 3 bronze medals.
 Moreover, only 1 point was missing for Sevak Mkrtchyan to obtain a Gold Medal (currently he is an assistant professor of mathematics in United States, Sevak received his PhD in mathematics from University of California, Berkley).
 Nevertheless, Arthur Barkhoudarian, one of the first students of Nairi Sedrakyan has received a Gold Medal in International Mathematical Olympiad, later on Arthur received his PhD degree in mathematics from Charles University in Prague.
 As all winner students were from the same school, where Nairi Sedrakyan was teaching mathematics, the government of the Republic of Armenia gave to the author the title of the best teacher of the Republic of Armenia and he received a special gift from the Prime Minister.
The crackpot index is a number that rates scientific claims or the individuals that make them, in conjunction with a method for computing that number.
 The method, proposed semi-seriously by mathematical physicist John C. Baez in 1992, computes an index by responses to a list of 36 questions, each positive response contributing a point value ranging from 1 to 50.
 The computation is initialized with a value of −5.
Pseudophysics is a pseudoscientific practice using the language of physics or discussing issues related to or pertinent to physics to promote ideas which are either incoherent or contradictory to known physics (experimental phenomenology).
 According to physicists, skeptics, and science writers, pseudophysics tends to be promoted by so-called "cranks", whose ideas lack peer review, lack falsifiable predictions, and/or blatantly contradict scientific facts and experimental results.
 Mathematical physicist John C. Baez famously invented a crackpot index to give an idea of what sort of claims and rhetoric were commonplace among pseudophysics proposals he had come across.
John Carlos Baez ( ; born June 12, 1961) is an American mathematical physicist and a professor of mathematics at the University of California, Riverside (UCR) in Riverside, California.
 He is known for his work on spin foams in loop quantum gravity.
 For some time, his research had focused on applications of higher categories to physics and other things.
Arlie Oswald Petters, MBE (born February 8, 1964) is a Belizean-American mathematical physicist, who is the Benjamin Powell Professor of Mathematics and a Professor Physics and Economics at Duke University.
 Petters is a founder of mathematical astronomy, focusing on problems connected to the interplay of gravity and light and employing tools from astrophysics, cosmology, general relativity, high energy physics, differential geometry, singularities, and probability theory.
 His monograph "Singularity Theory and Gravitational Lensing" is the first to develop a mathematical theory of gravitational lensing.
Nicolai Yuryevich Reshetikhin (Russian: Николай Юрьевич Решетихин , born October 10, 1958 in Leningrad, Soviet Union) is a mathematical physicist, currently a professor of mathematics at the University of California, Berkeley and a professor of mathematical physics at the University of Amsterdam.
 His research is in the fields of low-dimensional topology, representation theory, and quantum groups.
 His major contributions are in the theory of quantum integrable systems, in representation theory of quantum groups
Thomas C. Spencer (born December 24, 1946) is an American mathematical physicist, known in particular for important contributions to constructive quantum field theory, statistical mechanics, and spectral theory of random operators.
 He earned his doctorate in 1972 from New York University with a dissertation entitled "Perturbation of the Po2 Quantum Field Hamiltonian" written under the direction of James Glimm.
 Since 1986, he has been professor of mathematics at the Institute for Advanced Study.
 He is a member of the United States National Academy of Sciences, and the recipient of the Dannie Heineman Prize for Mathematical Physics (joint with Jürg Fröhlich, ""For their joint work in providing rigorous mathematical solutions to some outstanding problems in statistical mechanics and field theory."")
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Morton E. Gurtin is a mechanical engineer who became a mathematician and "de facto" mathematical physicist.
 He is an emeritus professor of mathematical sciences at Carnegie-Mellon University, where for many years he held an endowed chair as the Alumni Professor of Mathematical Science.
 His main work is in materials science, in the form of the mathematical, rational mechanics of non-linear continuum mechanics and thermodynamics, in the style of Clifford Truesdell and Walter Noll, a field also known under the combined name of "continuum thermomechanics".
 He has published over 250 papers, many among them in Archive for Rational Mechanics and Analysis, as well as a number of books.

Question: The Crackpot index was proposed by what mathematical physicist from the University of California, Riverside?
Answer: John Carlos Baez