1. Preface

   • Alexander Zimmermann

   Preface 09 November 2021 Pages: 219 - 219

2. Intuitionism: An Inspiration?

   • Wim Veldman

   Survey Article Open access 08 April 2021 Pages: 221 - 284

3. N. Lerner: “Carleman Inequalities”

   • Genni Fragnelli

   Book Review 20 May 2021 Pages: 285 - 292

   

4. S. Kondo: “K3 Surfaces”

   • Christian Liedtke

   Book Review Open access 25 May 2021 Pages: 293 - 298

   

5. Correction to: On COVID-19 Modelling

   • Robert Schaback

   Correction Open access 06 September 2021 Pages: 299 - 300