Multivariable Operator Theory

Ernst Albrecht, Raúl E. Curto, Michael Hartz, Mihai Putinar, Jörg Eschmeier's Mathematical Work.- Catalin Badea, Oscar Devys, Rochberg's Abstract Coboundary Theorem Revisited.- Joseph A. Ball, Haripada Sau, Dilation Theory and Functional Models for Tetrablock Contractions.- Wolfram Bauer, Miguel Angel Rodriguez Rodriguez, Commutative Toeplitz Algebras and Their Gelfand Theory: Old and New Results.- Hari Bercovici & Wing Suet Li, A Question About Invariant Subspaces and Factorization.- Monojit Bhattacharjee, B. Krishna Das, Ramlal Debnath, Samir Panja, Dilations and Operator Models of $mathcal{W}$-Hypercontractions.- Tirthankar Bhattacharyya, Shubham Rastogi, U. Vijaya Kumar, The Joint Spectrum for a Commuting Pair of Isometries in Certain Cases.- Shibananda Biswas, Gadadhar Misra, Samrat Sen, Geometric Invariants for a Class of Submodules of Analytic Hilbert Modules Via the Sheaf Model.- Shibananda Biswas, Mihai Putinar, Approximation in the Mean on Rational Curves.- I. Chalendar, J. R. Partington, Composition Operators on Function Spaces on the Halfplane: Spectra and Semigroups.- Sameer Chavan, Rajeev Gupta, Kalyan B. Sinha, Weighted Join Operators on Directed Trees.- Puyu Cui, Rongwei Yang, A Note on Joint Spectrum in Function Spaces.- Susmita Das, Jaydeb Sarkar, Left-Invertibility of Rank-One Perturbations.- Michael Didas, A-Isometries and Hilbert-A-Modules Over Product Domains.- Piotr Dymek, Artur Planeta, Marek Ptak, Conjugations on $varvec{L^2(mathbb {T}^N)}$ and Invariant Subspaces.- Quanlei Fang, Jingbo Xia, Best Approximations in a Class of Lorentz Ideals.- Kunyu Guo, Qi Zhou, Szegö's Theorem on Hardy Spaces Induced by Rotation-Invariant Borel Measures.- Zenon Jan Jablonski, Il Bong Jung, Jan Stochel, On the Structure of Conditionally Positive Definite Algebraic Operators.- Zhaofeng Lin, Yanqi Qiu, Kai Wang, Truncations of Random Unitary Matrices Drawn from Hua-Pickrell Distribution.- L. W. Marcoux, Five Hilbert Space Problems in Operator Algebras.-