1. On the extensions of the Diophantine triples in Gaussian integers

   • Nikola Adžaga
   • Alan Filipin
   • Zrinka Franušić

   OriginalPaper 11 February 2022 Pages: 535 - 563

2. The positive Schur property on positive projective tensor products and spaces of regular multilinear operators

   • Geraldo Botelho
   • Qingying Bu
   • Khazhak Navoyan

   Original Research 09 February 2022 Pages: 565 - 578

   

3. Multiparametric geometry of numbers and its application to splitting transference theorems

   • Oleg N. German

   OriginalPaper 17 January 2022 Pages: 579 - 606

   

4. Expansion of eigenvalues of the perturbed discrete bilaplacian

   • Shokhrukh Yu. Kholmatov
   • Ahmad Khalkhuzhaev
   • Mardon Pardabaev

   OriginalPaper Open access 05 February 2022 Pages: 607 - 633

   

5. On the wave interactions for the drift-flux equations with the Chaplygin gas

   • Shuangrong Li
   • Chun Shen

   Original Research 14 March 2022 Pages: 635 - 654

   

6. Close-to-harmonic extensions on the plane

   • Bo-Yong Long
   • Qi-Han Wang
   • Michael Dorff

   OriginalPaper 13 January 2022 Pages: 655 - 675

7. Smoothness and long time existence for solutions of the Cahn–Hilliard equation on manifolds with conical singularities

   • Pedro T. P. Lopes
   • Nikolaos Roidos

   OriginalPaper 14 February 2022 Pages: 677 - 716

8. Birkhoff–James orthogonality and numerical radius inequalities of operator matrices

   • Arpita Mal
   • Kallol Paul
   • Jeet Sen

   OriginalPaper 11 February 2022 Pages: 717 - 731

9. Reverse Carleson inequalities for weighted Bergman spaces with Békollé weights

   • Cezhong Tong
   • Xin Song

   OriginalPaper 24 February 2022 Pages: 733 - 753

10. Global smooth axisymmetric Euler flows with rotating effect in an infinitely long axisymmetric nozzle

    • Zihao Zhang

    OriginalPaper 08 January 2022 Pages: 755 - 780

11. Book reviews

    News 05 April 2022 Pages: 781 - 782