1. Discrete and Continuous Versions of the Continuity Principle

   • S. Ivashkovich

   OriginalPaper 20 June 2022 Article: 226

   

2. Timelike Minimal Surfaces in the Three-Dimensional Heisenberg Group

   • Hirotaka Kiyohara
   • Shimpei Kobayashi

   OriginalPaper 20 June 2022 Article: 225

   

3. Area-Minimizing Cones Over Grassmannian Manifolds

   • Xiaoxiang Jiao
   • Hongbin Cui

   OriginalPaper 20 June 2022 Article: 224

4. Re: Positive Resolution of Rubio de Francia’s Littlewood–Paley Conjecture for Arbitrary Disjoint Intervals in the Context of \(A_{1}\)-Weighted \(L^{2}\)

   • Earl Berkson

   OriginalPaper 14 June 2022 Article: 223

5. On Boundedness of Oscillating Multipliers on Stratified Lie Groups

   • The Anh Bui
   • Qing Hong
   • Guorong Hu

   OriginalPaper 13 June 2022 Article: 222

6. Fractional Non-linear Regularity, Potential and Balayage

   • Shaoguang Shi
   • Lei Zhang
   • Guanglan Wang

   OriginalPaper 10 June 2022 Article: 221

7. On Nonlocal Choquard System with Hardy–Littlewood–Sobolev Critical Exponents

   • Xiaorong Luo
   • Anmin Mao
   • Shuai Mo

   OriginalPaper 07 June 2022 Article: 220

8. Trivializable and Quaternionic Subriemannian Structures on \({\mathbb {S}}^7\) and Subelliptic Heat Kernel

   • Wolfram Bauer
   • Abdellah Laaroussi

   OriginalPaper Open access 07 June 2022 Article: 219

9. Neumann Eigenvalues of the Biharmonic Operator on Domains: Geometric Bounds and Related Results

   • Bruno Colbois
   • Luigi Provenzano

   OriginalPaper Open access 07 June 2022 Article: 218

   

10. Spectra of Symmetric Self-similar Measures as Multipliers in \(L^p\)

    • Yan-Song Fu
    • Meng Zhu

    OriginalPaper 07 June 2022 Article: 217

11. Boundary-Rigidity of Projective Metrics and the Geodesic X-Ray Transform

    • Árpád Kurusa
    • Tibor Ódor

    OriginalPaper Open access 06 June 2022 Article: 216

    

12. A Family of Free Boundary Minimal Surfaces in the Unit Ball

    • Anna Siffert
    • Jan Wuzyk

    OriginalPaper Open access 04 June 2022 Article: 215

    

13. Torus Actions on Alexandrov 4-Spaces

    • Diego Corro
    • Jesús Núñez-Zimbrón
    • Masoumeh Zarei

    OriginalPaper Open access 30 May 2022 Article: 214

    

14. The p-Weil–Petersson Teichmüller Space and the Quasiconformal Extension of Curves

    • Huaying Wei
    • Katsuhiko Matsuzaki

    OriginalPaper Open access 27 May 2022 Article: 213

15. Rotation Bounds for Hölder Continuous Homeomorphisms with Integrable Distortion

    • A. Clop
    • L. Hitruhin
    • B. Sengupta

    OriginalPaper Open access 25 May 2022 Article: 212

16. Orthogonal Pair and a Rigidity Problem for Segre Maps Associated to Real Hyperquadrics

    • Yun Gao

    OriginalPaper 22 May 2022 Article: 211

17. Invariant Conformal Killing–Yano 2-Forms on Five-Dimensional Lie Groups

    • A. Herrera
    • M. Origlia

    OriginalPaper 22 May 2022 Article: 210