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Frank Featherstone Bonsall FRS (31 March 1920, Crouch End, London – 22 February 2011, Harrogate) was a British mathematician.

Life

Bonsall was born on 31 March 1920, the youngest son of Wilfred C Bonsall and Sarah Frank. His older brother was Arthur Bonsall. He graduated from Bishop's Stortford College in 1938, and studied at Merton College, Oxford. He served in World War II, in the Corps of Royal Engineers, and in India from 1944 to 1946.

He married Gillian Patrick, in 1947. He lectured at the University of Edinburgh from 1947 to 1948; was Visiting Associate Professor at Oklahoma State University from 1950 to 1951; taught at Newcastle University, with Werner Wolfgang Rogosinski in the 1950s; was visiting professor at Yale University; and taught at the University of Edinburgh, from 1963 to 1984. In 1966, he was awarded the London Mathematical Society's Berwick Prize. Despite not himself having a PhD, Bonsall supervised many PhD candidates who knew him affectionately as "FFB". After his retirement, Bonsall and his wife moved to Harrogate.

Bonsall and his wife were keen hill-walkers. He wrote two articles for The Scottish Mountaineering Club on the definition of a Munro.

Works

• Compact linear operators, Yale University, Dept. of Mathematics, 1967
• Frank F. Bonsall, John Duncan, Numerical ranges of operators and normed spaces and of all elements of normed algebras, London Mathematical Society, 1971
• Frank F. Bonsall, J. Duncan, Numerical ranges II, Cambridge univ. press, 1973
• Frank F. Bonsall, J. Duncan, Complete normed algebras, 1973

References

1. http://www.heraldscotland.com/comment/obituaries/frank-bonsall-1.1094739
2. Obituary
3. ^ Levens, R.G.C., ed. (1964). Merton College Register 1900–1964. Oxford: Basil Blackwell. p. 290.
4. http://www.gap-system.org/~history/Biographies/Bonsall.html
5. Alastair Gillespie (4 April 2011). "Professor Frank Bonsall: Leading mathematician of the post-war years who led research into functional analysis". The Independent.
6. The Mathematics Genealogy Project
7. Royal Society of Edinburgh obituary
8. Rickart, C. E. (1975). "Review: Complete normed algebras by F. F. Bonsall and J. Duncan" (PDF). Bull. Amer. Math. Soc. 81, Part 1 (3): 514–522. doi:10.1090/s0002-9904-1975-13727-x.

External links

• http://genealogy.math.ndsu.nodak.edu/id.php?id=15633
• search on author FF Bonsall from Google Scholar

• Use dmy dates from April 2012
• 1920 births
• 2011 deaths
• 20th-century British mathematicians
• 21st-century British mathematicians
• People educated at Bishop's Stortford College
• Alumni of Merton College, Oxford
• Academics of the University of Edinburgh
• Fellows of the Royal Society
• British Army personnel of World War II
• People from Crouch End