1. A block theoretic proof of Thompson’s \(A\times B\)-lemma

   • Radha Kessar
   • Markus Linckelmann

   OriginalPaper Open access 23 August 2021 Pages: 481 - 483

2. When does the canonical module of a module have finite injective dimension?

   • T. H. Freitas
   • V. H. Jorge Pérez

   OriginalPaper 23 September 2021 Pages: 485 - 494

3. Minimal depth of monomial ideals via associated radical ideals

   • Somayeh Bandari
   • Raheleh Jafari

   OriginalPaper 10 September 2021 Pages: 495 - 507

4. The least non-split prime in a number field

   • Henry H. Kim

   OriginalPaper 16 September 2021 Pages: 509 - 513

5. Fractional differential relations for the Lerch zeta function

   • Arran Fernandez
   • Jean-Daniel Djida

   OriginalPaper Open access 17 September 2021 Pages: 515 - 527

6. A weak vector-valued Banach–Stone theorem for Choquet simplices

   • Jakub Rondoš
   • Jiří Spurný

   OriginalPaper 03 June 2021 Pages: 529 - 536

7. Furtherance of numerical radius inequalities of Hilbert space operators

   • Pintu Bhunia
   • Kallol Paul

   OriginalPaper 22 July 2021 Pages: 537 - 546

8. On the orthogonality of generalized eigenspaces for the Ornstein–Uhlenbeck operator

   • Valentina Casarino
   • Paolo Ciatti
   • Peter Sjögren

   OriginalPaper Open access 02 August 2021 Pages: 547 - 556

9. Gradient estimates and Liouville type theorems for \((p-1)^{p-1}\Delta _pu+au^{p-1}\log u^{p-1}=0\) on Riemannian manifolds

   • Bingqing Ma
   • Mingfang Zhu

   OriginalPaper 24 August 2021 Pages: 557 - 567

10. Existence of left invariant Ricci flat metrics on nilpotent Lie groups

    • Yujian Xiang
    • Zaili Yan

    OriginalPaper 23 July 2021 Pages: 569 - 578

11. Integral geometry of pairs of planes

    • Julià Cufí
    • Eduardo Gallego
    • Agustí Reventós

    OriginalPaper 21 September 2021 Pages: 579 - 591