Choi, Yemon A short proof that \(\mathcal{B} (L_1)\) is not amenable. (English) Zbl 1486.46052 Proc. R. Soc. Edinb., Sect. A, Math. 151, No. 6, 1758-1767 (2021). Reviewer: Mehdi S. Monfared (Windsor) MSC: 46H20 47L10 PDFBibTeX XMLCite \textit{Y. Choi}, Proc. R. Soc. Edinb., Sect. A, Math. 151, No. 6, 1758--1767 (2021; Zbl 1486.46052) Full Text: DOI arXiv Link
Choi, Yemon A gap theorem for the ZL-amenability constant of a finite group. (English) Zbl 1454.43002 Int. J. Group Theory 5, No. 4, 27-46 (2016). MSC: 43A20 20C15 PDFBibTeX XMLCite \textit{Y. Choi}, Int. J. Group Theory 5, No. 4, 27--46 (2016; Zbl 1454.43002) Full Text: DOI arXiv
Choi, Yemon; Ghandehari, Mahya Weak amenability for Fourier algebras of 1-connected nilpotent Lie groups. (English) Zbl 1328.43005 J. Funct. Anal. 268, No. 8, 2440-2463 (2015). Reviewer: Tianxuan Miao (Thunder Bay) MSC: 43A30 46J10 47B47 PDFBibTeX XMLCite \textit{Y. Choi} and \textit{M. Ghandehari}, J. Funct. Anal. 268, No. 8, 2440--2463 (2015; Zbl 1328.43005) Full Text: DOI arXiv
Choi, Yemon Singly generated operator algebras satisfying weakened versions of amenability. (English) Zbl 1329.46045 Todorov, Ivan G. (ed.) et al., Algebraic methods in functional analysis. The Victor Shulman anniversary volume. Basel: Birkhäuser (ISBN 978-3-0348-0501-8/hbk; 978-3-0348-0502-5/ebook). Operator Theory: Advances and Applications 233, 33-44 (2014). Reviewer: Cătălin Badea (Villeneuve d’Ascq) MSC: 46H25 46L10 47L75 47L45 PDFBibTeX XMLCite \textit{Y. Choi}, Oper. Theory: Adv. Appl. 233, 33--44 (2014; Zbl 1329.46045) Full Text: DOI arXiv
Alaghmandan, Mahmood; Choi, Yemon; Samei, Ebrahim ZL-amenability and characters for the restricted direct products of finite groups. (English) Zbl 1308.43003 J. Math. Anal. Appl. 411, No. 1, 314-328 (2014). MSC: 43A10 43A07 PDFBibTeX XMLCite \textit{M. Alaghmandan} et al., J. Math. Anal. Appl. 411, No. 1, 314--328 (2014; Zbl 1308.43003) Full Text: DOI arXiv
Alaghmandan, Mahmood; Choi, Yemon; Samei, Ebrahim ZL-amenability constants of finite groups with two character degrees. (English) Zbl 1300.43004 Can. Math. Bull. 57, No. 3, 449-462 (2014). MSC: 43A20 20C15 PDFBibTeX XMLCite \textit{M. Alaghmandan} et al., Can. Math. Bull. 57, No. 3, 449--462 (2014; Zbl 1300.43004) Full Text: DOI arXiv
Choi, Yemon; Ghandehari, Mahya Weak and cyclic amenability for Fourier algebras of connected Lie groups. (English) Zbl 1298.43004 J. Funct. Anal. 266, No. 11, 6501-6530 (2014). Reviewer: Armando R. Villena (Granada) MSC: 43A30 43A22 22E15 PDFBibTeX XMLCite \textit{Y. Choi} and \textit{M. Ghandehari}, J. Funct. Anal. 266, No. 11, 6501--6530 (2014; Zbl 1298.43004) Full Text: DOI arXiv
Choi, Yemon; Farah, Ilijas; Ozawa, Narutaka A nonseparable amenable operator algebra which is not isomorphic to a \(C^{\ast}\)-algebra. (English) Zbl 1287.47057 Forum Math. Sigma 2, Paper No. e2, 12 p. (2014). Reviewer: Aaron Tikuisis (Münster) MSC: 47L30 46L05 03E75 PDFBibTeX XMLCite \textit{Y. Choi} et al., Forum Math. Sigma 2, Paper No. e2, 12 p. (2014; Zbl 1287.47057) Full Text: DOI arXiv
Choi, Y.; Ghahramani, F.; Zhang, Y. Approximate and pseudo-amenability of various classes of Banach algebras. (English) Zbl 1179.46040 J. Funct. Anal. 256, No. 10, 3158-3191 (2009). Reviewer: Volker Runde (Edmonton) MSC: 46H05 46H25 43A20 43A30 PDFBibTeX XMLCite \textit{Y. Choi} et al., J. Funct. Anal. 256, No. 10, 3158--3191 (2009; Zbl 1179.46040) Full Text: DOI arXiv