Joint spectra of spherical Aluthge transforms of commuting n-tuples of Hilbert space operators

Chafiq Benhida; Raúl E. Curto; Sang Hoon Lee; Jasang Yoon

Comptes Rendus. Mathématique, Volume 357 (2019) p. 799-802

Toral and spherical Aluthge transforms of 2-variable weighted shifts

Raúl E. Curto; Jasang Yoon

Comptes Rendus. Mathématique, Volume 354 (2016) p. 1200-1204