Ivor Etherington

Ivor Malcolm Haddon Etherington FRSE (8 February 1908 -1 January 1994)^[1] was a mathematician who worked initially on general relativity, and later on genetics and introduced genetic algebras.

He was born in Lewisham in London the son of Annie Margaret and her husband Bruce Etherington, both of whom were Baptist missionaries normally based in Ceylon. His father had died in Ceylon, leaving his mother and two older siblings to return to Britain alone. His mother remarried in 1913 to Edwin Duncombe de Rusett, a Baptist minister, but Ivor retained his original name. In 1921 the growing family moved out of London to Thorpe Bay on the Essex coast, where his father then founded the Thorpe Hall School for Boys. In 1922 Ivor was sent back to London to be educated at Mill Hill School.^[2] He was later educated at the University of Oxford and continued as a postgraduate at the University of Edinburgh where he received his doctorate.^[3] He later became a professor of mathematics at the same university.

He was elected a Fellow of the Royal Society of Edinburgh in 1934. His proposers were Sir Edmund Whittaker, Herbert Westren Turnbull, Edward Thomas Copson and David Gibb. He won the Society's Keith Medal for 1955-57.^[4]

His doctoral students include Henryk Minc.^[5]

On his retirement in 1974,^{[citation needed]} Etherington moved with his wife to Easdale on the Scottish west coast, where the family had always had a holiday home.^{[citation needed]}

He died on 1 January 1994^{[citation needed]}.

He married Elizabeth (Betty) Goulding in 1934. They had two daughters, Donia and Judy. When Betty died in 1982, Donia came to care for her father.^{[citation needed]}

During World War II he and his wife aided 32 German refugees, giving many shelter in their own home.^{[2][dead link‍]}

• Etherington's reciprocity theorem
• Wedderburn–Etherington number

• Krasiński, Andrzej (2007), "I. M. H. Etherington: a brief biography", General Relativity and Gravitation, 39 (7): 1053–1054, Bibcode:2007GReGr..39.1053K, doi:10.1007/s10714-006-0356-4, ISSN 0001-7701, MR 2322616, S2CID 121853990

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