Dr Yemon Choi

A gap theorem for the ZL-amenability constant of a finite group
Choi, Y. expected in 2016 In: International Journal of Group Theory. 20 p.
Journal article

Extension of derivations, and Connes-amenability of the enveloping dual Banach algebra
Choi, Y., Samei, E., Stokke, R. expected in 2016 In: Mathematica Scandinavica.
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Directly finite algebras of pseudofunctions on locally compact groups
Choi, Y. 09/2015 In: Glasgow Mathematical Journal. 57, 3, p. 693-707. 15 p.
Journal article

Weak amenability for Fourier algebras of 1-connected nilpotent Lie groups
Choi, Y., Ghandehari, M. 15/04/2015 In: Journal of Functional Analysis. 268, 8, p. 2440-2463. 24 p.
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Weak and cyclic amenability for Fourier algebras of connected Lie groups
Choi, Y., Ghandehari, M. 1/06/2014 In: Journal of Functional Analysis. 266, 11, p. 6501-6530. 30 p.
Journal article

A nonseparable amenable operator algebra which is not isomorphic to a {$C^*$}-algebra
Choi, Y., Farah, I., Ozawa, N. 10/03/2014 In: Forum of Mathematics, Sigma. 2, 12 p.
Journal article

ZL-amenability and characters for the group algebras of restricted direct products of finite groups
Alaghmandan, M., Choi, Y., Samei, E. 1/03/2014 In: Journal of Mathematical Analysis and Applications. 411, 1, p. 314-328. 15 p.
Journal article

Singly generated operator algebras satisfying weakened versions of amenability
Choi, Y. 2014 In: Algebraic methods in functional analysis. Basel : Springer Verlag p. 33-44. 12 p. ISBN: 9783034805018. Electronic ISBN: 9783034805025.
Chapter

ZL-amenability constants of finite groups with two character degrees
Alaghmandan, M., Choi, Y., Samei, E. 2014 In: Canadian Mathematical Bulletin. 57, p. 449-462. 14 p.
Journal article

Approximately multiplicative maps from weighted semilattice algebras
Choi, Y. 08/2013 In: Journal of the Australian Mathematical Society. 95, 1, p. 36-67. 32 p.
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On commutative, operator amenable subalgebras of finite von Neumann algebras
Choi, Y. 05/2013 In: Journal für die reine und angewandte Mathematik (Crelle's Journal). 678, p. 201-222. 22 p.
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Quotients of Fourier algebras, and representations which are not completely bounded
Choi, Y., Samei, E. 20/03/2013 In: Proceedings of the American Mathematical Society. 141, 7, p. 2379-2388. 10 p.
Journal article

Simplicial cohomology of band semigroup algebras
Choi, Y., Gourdeau, F., White, M.C. 08/2012 In: Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 142, 4, p. 715-744. 30 p.
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Characterizing derivations from the disk algebra to its dual
Choi, Y., Heath, M.J. 3/08/2011 In: Proceedings of the American Mathematical Society. 139, 3, p. 1073-1080. 8 p.
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Approximate amenability of Schatten classes, Lipschitz algebras and second duals of Fourier algebras
Choi, Y., Ghahramani, F. 2011 In: The Quarterly Journal of Mathematics. 62, 1, p. 39-58. 20 p.
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Group representations with empty residual spectrum
Choi, Y. 05/2010 In: Integral Equations and Operator Theory. 67, 1, p. 95-107. 13 p.
Journal article

Simplicial cohomology of augmentation ideals in $\ell^1(G)$
Choi, Y. 02/2010 In: Proceedings of the Edinburgh Mathematical Society. 53, 1, p. 97-109. 13 p.
Journal article

Hochschild homology and cohomology of $\ell^1(\mathbb Z_+^k)$
Choi, Y. 2010 In: The Quarterly Journal of Mathematics. 61, 1, p. 1-28. 28 p.
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Injective convolution operators on $\ell^infty(\Gamma)$ are surjective
Choi, Y. 2010 In: Canadian Mathematical Bulletin. 53, 3, p. 447-452. 6 p.
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Simplicial homology of strong semilattices of Banach algebras
Choi, Y. 2010 In: Houston Journal of Mathematics. 36, 1, p. 237-260. 24 p.
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Splitting maps and norm bounds for the cyclic cohomology of biflat Banach algebras
Choi, Y. 2010 In: Banach Algebras 2009. Warsaw : Polish Academy of Sciences p. 105-121. 17 p. ISBN: 9788386806102.
Chapter

Translation-finite sets and weakly compact derivations from $\ell^1(\mathbb Z_+)$ to its dual
Choi, Y., Heath, M.J. 2010 In: Bulletin of the London Mathematical Society. 42, 3, p. 429-440. 12 p.
Journal article

Uniform bounds for point cohomology of $\ell^1(\mathbb Z_+)$ and related algebras
Choi, Y. 15/10/2009 In: Journal of Mathematical Analysis and Applications. 358, 2, p. 249-260. 12 p.
Journal article

Approximate and pseudo-amenability of various classes of Banach algebras
Choi, Y., Ghahramani, F., Zhang, Y. 15/05/2009 In: Journal of Functional Analysis. 256, 10, p. 3158-3191. 34 p.
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Biflatness of $\ell^1$-semilattice algebras
Choi, Y. 10/2007 In: Semigroup Forum. 75, 2, p. 253-271. 19 p.
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Simplicial homology and Hochschild cohomology of Banach semilattice algebras
Choi, Y. 05/2006 In: Glasgow Mathematical Journal. 48, 2, p. 231-245. 15 p.
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