1. Lattice Paths and Submonoids of \(\mathbb Z^2\)

   • James East
   • Nicholas Ham

   OriginalPaper 18 August 2021 Pages: 797 - 847

   

2. Refined Restricted Inversion Sequences

   • Zhicong Lin
   • Dongsu Kim

   OriginalPaper 23 August 2021 Pages: 849 - 875

   

3. The Degree of Symmetry of Lattice Paths

   • Sergi Elizalde

   OriginalPaper 24 August 2021 Pages: 877 - 911

   

4. Asymmetric List Sizes in Bipartite Graphs

   • Noga Alon
   • Stijn Cambie
   • Ross J. Kang

   OriginalPaper Open access 01 September 2021 Pages: 913 - 933

5. Regular Unimodular Triangulations of Reflexive IDP 2-Supported Weighted Projective Space Simplices

   • Benjamin Braun
   • Derek Hanely

   OriginalPaper 28 September 2021 Pages: 935 - 960

   

6. The Chromatic Quasisymmetric Class Function of a Digraph

   • Jacob A. White

   OriginalPaper 08 October 2021 Pages: 961 - 993

   

7. Tverberg’s Theorem, Disks, and Hamiltonian Cycles

   • Pablo Soberón
   • Yaqian Tang

   OriginalPaper 11 October 2021 Pages: 995 - 1005

   

8. Bounded Affine Permutations II. Avoidance of Decreasing Patterns

   • Neal Madras
   • Justin M. Troyka

   OriginalPaper 21 October 2021 Pages: 1007 - 1048

   

9. Determinantal Formulas for SEM Expansions of Schubert Polynomials

   • Hassan Hatam
   • Joseph Johnson
   • Maria Macaulay

   OriginalPaper 23 October 2021 Pages: 1049 - 1074

   

10. Tight Multiple Twins in Permutations

    • Andrzej Dudek
    • Jarosław Grytczuk
    • Andrzej Ruciński

    OriginalPaper 30 October 2021 Pages: 1075 - 1094

    

11. Correction to: New Non-Existence Proofs for Ovoids of Hermitian Polar Spaces and Hyperbolic Quadrics

    • J. Bamberg
    • J. De Beule
    • F. Ihringer

    Correction 19 November 2021 Pages: 1095 - 1097