1. Commutators of operators in Musielak–Orlicz–Morrey spaces on differential forms

   • Jianwei Wang
   • Yuming Xing

   Original Paper 11 October 2021 Article: 59

2. Isometries of ultrametric normed spaces

   • Javier Cabello Sánchez
   • José Navarro Garmendia

   Original Paper Open access 15 September 2021 Article: 58

   

3. The asymptotic property of the hyperparabolic maximal function

   • Xudong Nie
   • Panwang Wang

   Original Paper 09 September 2021 Article: 57

4. Reverse Carleson measures on the weighted Bergman spaces with invariant weight

   • Cezhong Tong
   • Junfeng Li
   • Hicham Arroussi

   Original Paper 01 September 2021 Article: 56

5. A note on the generalized Drazin–Riesz invertible operators

   • Othman Abad
   • Hassane Zguitti

   Original Paper 17 August 2021 Article: 55

6. On non-linear \(\varepsilon\)-isometries between the positive cones of certain continuous function spaces

   • Longfa Sun

   Original Paper 12 August 2021 Article: 54

7. Half line Titchmarsh–Weyl m functions of vector-valued discrete Schrödinger operators

   • Keshav Raj Acharya
   • Matt McBride

   Original Paper 09 August 2021 Article: 53

   

8. On \({\mathbb {A}}\)-numerical radius equalities and inequalities for certain operator matrices

   • Fuad Kittaneh
   • Satyajit Sahoo

   Original Paper 21 July 2021 Article: 52

   

9. On a new norm on \(\mathcal {B}({\mathcal {H}})\) and its applications to numerical radius inequalities

   • Debmalya Sain
   • Pintu Bhunia
   • Kallol Paul

   Original Paper 20 July 2021 Article: 51