1. Subset selection for matrices with fixed blocks

   • Jiaxin Xie
   • Zhiqiang Xu

   OriginalPaper 02 July 2021 Pages: 1 - 26

2. Higher index symplectic capacities do not satisfy the symplectic Brunn-Minkowski inequality

   • Ely Kerman
   • Yuanpu Liang

   OriginalPaper 02 July 2021 Pages: 27 - 38

3. Dilation theory in finite dimensions and matrix convexity

   • Michael Hartz
   • Martino Lupini

   OriginalPaper 09 September 2021 Pages: 39 - 73

4. Finite groups as prescribed polytopal symmetries

   • Alexandru Chirvasitu
   • Frieder Ladisch
   • Pablo Soberón

   OriginalPaper 09 September 2021 Pages: 75 - 91

5. Chain logic and Shelah’s infinitary logic

   • Mirna Džamonja
   • Jouko Väänänen

   OriginalPaper 06 October 2021 Pages: 93 - 134

6. Improved regularity for the porous medium equation along zero level sets

   • Edgard A. Pimentel
   • Makson S. Santos

   OriginalPaper 06 October 2021 Pages: 135 - 151

7. Notes on the ℓ^p-Toeplitz algebra on ℓ^p(ℕ)

   • Qin Wang
   • Zhen Wang

   OriginalPaper 09 September 2021 Pages: 153 - 163

8. Impossible configurations for geodesics on negatively-curved surfaces

   • Anthony Phillips

   OriginalPaper 09 September 2021 Pages: 165 - 172

9. Baer-Suzuki theorem for the π-radical

   • Nanying Yang
   • Danila O. Revin
   • Evgeny P. Vdovin

   OriginalPaper 06 October 2021 Pages: 173 - 207

10. A multi-plank generalization of the Bang and Kadets inequalities

    • Alexey Balitskiy

    OriginalPaper 06 October 2021 Pages: 209 - 230

11. Some examples of invariably generated groups

    • Ashot Minasyan

    OriginalPaper 06 October 2021 Pages: 231 - 257

12. Primitive tuning via quasiconformal surgery

    • Weixiao Shen
    • Yimin Wang

    OriginalPaper 06 October 2021 Pages: 259 - 293

13. Fake reflection

    • Gabriel Fernandes
    • Miguel Moreno
    • Assaf Rinot

    OriginalPaper 06 October 2021 Pages: 295 - 345

14. Free idempotent generated semigroups: The word problem and structure via gain graphs

    • Igor Dolinka

    OriginalPaper 06 October 2021 Pages: 347 - 387

15. Rigidity of determinantal point processes on the unit disc with sub-Bergman kernels

    • Yanqi Qiu
    • Kai Wang

    OriginalPaper 30 October 2021 Pages: 389 - 408

16. Resolutions and homological dimensions of DG-modules

    • Hiroyuki Minamoto

    OriginalPaper 30 October 2021 Pages: 409 - 454

17. Periodic points and measures for a class of skew-products

    • Maria Carvalho
    • Sebastián A. Pérez

    OriginalPaper 25 November 2021 Pages: 455 - 500