C. B. Collins

{{Short description|Cosmologist}} {{For|the political figure|C. B. Collins (treasurer)}} {{Use dmy dates|date=April 2022}} '''Christopher Barry Collins''' is a [[cosmology|cosmologist]] who has written many papers with [[Stephen Hawking]]. He is a [[professor emeritus]] of [[applied mathematics]] at the [[University of Waterloo]].<ref>[https://uwaterloo.ca/applied-mathematics/about/people/cbcollin Faculty profile]{{Dead link|date=June 2025 |bot=InternetArchiveBot |fix-attempted=yes }}, Univ. of Waterloo, retrieved 2015-07-22.</ref>

Collins earned his Ph.D. in 1972 from the [[University of Cambridge]] under the supervision of F. Gerard Friedlander.<ref>{{mathgenealogy|id=127502|name=Christopher Barry Collins}}</ref> Among his works with Hawking is a 1973 paper that uses the [[anthropic principle]] to provide a solution to the [[flatness problem]].<ref>{{citation|title=Space and Time in the Modern Universe|first=P. C. W.|last=Davies|publisher=[[Cambridge University Press]]|year=1977|isbn=9780521291514|page=215|url=https://books.google.com/books?id=SZI5AAAAIAAJ&pg=PA215}}.</ref><ref>{{citation|title=Cosmic Enigmas|volume=10|series=Masters of Modern Physics|first=Joseph|last=Silk|publisher=Springer|year=1994|isbn=9781563960611|page=35|url=https://books.google.com/books?id=ovXYxdSuOhkC&pg=PA35}}.</ref><ref>{{citation|title=The Anthropic Principle: Man as the Focal Point of Nature|first=Reinhard|last=Breuer|publisher=Springer|year=2013|isbn=9781489967411|page=111|url=https://books.google.com/books?id=ZXkECAAAQBAJ&pg=PA111}}.</ref>

==Selected publications== *{{citation | last = Collins | first = C. B. | bibcode = 1971CMaPh..23..137C | doi = 10.1007/bf01877756 | issue = 2 | journal = Communications in Mathematical Physics | pages = 137–158 | title = More qualitative cosmology | volume = 23 | year = 1971| s2cid = 121299977 | url = http://projecteuclid.org/euclid.cmp/1103857597 }}. *{{citation | last1 = Collins | first1 = C. B. | last2 = Hawking | first2 = S. W. | author2-link = Stephen Hawking | bibcode = 1973ApJ...180..317C | journal = Astrophysical Journal | pages = 317–334 | title = Why is the Universe Isotropic? | volume = 180 | year = 1973|doi = 10.1086/151965 | doi-access = free }}. *{{citation | last1 = Collins | first1 = C. B. | last2 = Hawking | first2 = S. W. | author2-link = Stephen Hawking | last3 = Sciama | first3 = D. W. | author3-link = Dennis W. Sciama | bibcode = 1973MNRAS.162..307C | doi = 10.1093/mnras/162.4.307 | issue = 4 | journal = Monthly Notices of the Royal Astronomical Society | pages = 307–320 | title = The rotation and distortion of the universe | volume = 162 | year = 1973| doi-access = free }}. *{{citation | last1 = Collins | first1 = C. B. | last2 = Ellis | first2 = G. F. R. | author2-link = George F. R. Ellis | bibcode = 1979PhR....56...65C | doi = 10.1016/0370-1573(79)90065-6 | issue = 2 | journal = Physics Reports | pages = 65–105 | title = Singularities in Bianchi cosmologies | volume = 56 | year = 1979}}. *{{citation | last1 = Collins | first1 = C. B. | last2 = Glass | first2 = E. N. | last3 = Wilkinson | first3 = D. A. | bibcode = 1980GReGr..12..805C | doi = 10.1007/bf00763057 | issue = 10 | journal = General Relativity and Gravitation | pages = 805–823 | title = Exact spatially homogeneous cosmologies | volume = 12 | year = 1980| s2cid = 123332177 }}.

==See also== * [[List of University of Waterloo people]]

== References == {{reflist}}

{{DEFAULTSORT:Collins, C. B.}} [[Category:Living people]] [[Category:Canadian cosmologists]] [[Category:20th-century British mathematicians]] [[Category:20th-century Canadian mathematicians]] [[Category:Year of birth missing (living people)]] [[Category:Place of birth missing (living people)]] [[Category:Alumni of the University of Cambridge]] [[Category:Academic staff of the University of Waterloo]]