Conway’s Work on Iteration In memory of John Horton Conway (1937–2020)
Conway’s Work on Iteration In memory of John Horton Conway (1937–2020)
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康威的迭代工作纪念约翰·霍顿·康威(1937 年至 2020 年)
DOI:
10.1007/s00283-021-10095-5
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Lagarias, Jeffrey C.
中科院分区:
文献类型:
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作者:
Lagarias, Jeffrey C.
Research Center at AT&T Bell Laboratories in the 1980s. John was coming to Bell Labs once a week to work with Neil JA Sloane on their book Sphere Packings, Lattices and Groups. At one lunch gathering, he explained a grouptheoretic restriction on solvability of a particular polyomino tiling problem. This led to joint work [18]. At the time I met Conway, he was world-famous. He had constructed new finite simple groups; he had created a theory of (surreal) numbers and games; he had invented new polynomials in knot theory. His personality was outsized, yet he was approachable. I was in awe of him. John liked to start with simple rules that built up to complicated things. Where did they lead? Sometimes the rules led to complete clear emergent patterns, sometimes to unpredictability and computationally undecidable problems. John liked mathematical objects that looked the same everywhere, having internal structure yet also having large (transitive) symmetry groups. He liked finding new invariants that tell things apart, providing a classification. John liked numbers, and patterns, and experimental computations. He enumerated many knots and links via his theory of tangles, labeling knots with numbers [9]. With Simon P. Norton, he formulated Monstrous Moonshine, tabulating unexpected patterns of numbers connecting two different fields, the Monster simple group and modular functions, including the j-function [19]. These patterns were pursued by his student Richard Borcherds, who proved them many years later.
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DOI:
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发表时间:
1963
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影响因子:
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作者:
M. Klamkin
通讯作者:
M. Klamkin
DOI:
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发表时间:
1983
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作者:
O. B. Keyes
通讯作者:
O. B. Keyes
DOI:
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发表时间:
1996
期刊:
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
影响因子:
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作者:
D. Bernstein;Jeffrey C. Lagarias
通讯作者:
Jeffrey C. Lagarias
DOI:
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发表时间:
2005
期刊:
影响因子:
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作者:
J. Plotkin
通讯作者:
J. Plotkin
DOI:
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发表时间:
1964
期刊:
影响因子:
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作者:
J. Conway
通讯作者:
J. Conway