the Hanna Neumann conjecture is a statement about the rank of the intersection of two finitely generated subgroups of a free group. The conjecture was...
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international journals. Hanna and her husband are known for the Higman-Neumann-Neumann construction in group theory, and the Hanna Neumann conjecture is named after...
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List of unsolved problems in mathematics (category Conjectures)
Pöschel, 2001) Harary's conjecture on the integral sum number of complete graphs (Zhibo Chen, 1996) Hanna Neumann conjecture (Joel Friedman, 2011, Igor...
195 KB (20,026 words) - 13:12, 7 May 2025
Hanna Neumann. The Hanna Neumann conjecture states that in fact one always has rank(L) − 1 ≤ (rank(K) − 1)(rank(H) − 1). The Hanna Neumann conjecture...
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conjecture (disproved 1910) Tait's conjecture Von Neumann conjecture Weyl–Berry conjecture Williamson conjecture In mathematics, ideas are supposedly...
35 KB (1,461 words) - 12:50, 10 May 2025
significantly improved by Hanna Neumann to 2 ( m − 1 ) ( n − 1 ) + 1 {\displaystyle 2(m-1)(n-1)+1} ; see Hanna Neumann conjecture. The lattice of subgroups...
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partial results concerning the Hanna Neumann conjecture. With his student, Adam Marcus, he proved a combinatorial conjecture of Zoltán Füredi and Péter Hajnal...
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Warren (1994). "Equivalence of the strengthened Hanna Neumann conjecture and the amalgamated graph conjecture". Inventiones Mathematicae. 117 (3): 373–389...
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contains Z w r Z {\displaystyle \mathbb {Z} \ wr\ \mathbb {Z} } . Hanna Neumann conjecture A. G. Howson, On the intersection of finitely generated free groups...
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Mathematical Society's Whitehead Prize. In 2014, she delivered the annual Hanna Neumann Lecture to honour the achievements of women in mathematics. Snaith is...
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Richardson, Mordell and in 1958–1963 group theorist Hanna Neumann, did not have a strong focus on research. Neumann was later to be the first woman appointed to...
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benefited heavily from the continuous theory of Lie. Bernard Neumann and Hanna Neumann produced their study of varieties of groups, groups defined by...
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by William Haboush to all reductive groups by his proof of the Mumford conjecture. In this paper Noether also introduced the Noether normalization lemma...
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were expected from two-stage pumping of a three-level system. It was conjectured that the nucleus of an atom embedded in the near field of a laser-driven...
126 KB (14,006 words) - 07:54, 27 May 2025
(in both odd and even orders). An open question, apparently due to Hanna Neumann though not published by her, is: Does every non-desarguesian plane contain...
53 KB (6,933 words) - 20:43, 16 May 2025
research concerns spatial ecology Hanna Neumann (1914–1971), German-born mathematician who worked on group theory Adriana Neumann de Oliveira, Brazilian expert...
196 KB (23,282 words) - 13:18, 24 May 2025