1. Richard Pollack, 1935–2018

   Ricky Pollack Memorial Issue 11 September 2020 Pages: 567 - 567

   

2. In The Beginning…

   • Jacob E. Goodman

   Ricky Pollack Memorial Issue 25 February 2020 Pages: 568 - 570

3. A Farewell to Ricky Pollack

   • János Pach

   Editorial 20 August 2020 Pages: 571 - 574

4. Geometric Multicut: Shortest Fences for Separating Groups of Objects in the Plane

   • Mikkel Abrahamsen
   • Panos Giannopoulos
   • Günter Rote

   Ricky Pollack Memorial Issue Open access 11 August 2020 Pages: 575 - 607

   

5. Barycentric Subdivisions of Convex Complexes are Collapsible

   • Karim Adiprasito
   • Bruno Benedetti

   Ricky Pollack memorial issue 19 November 2019 Pages: 608 - 626

   

6. Eliminating Depth Cycles Among Triangles in Three Dimensions

   • Boris Aronov
   • Edward Y. Miller
   • Micha Sharir

   Ricky Pollack Memorial Issue 14 July 2020 Pages: 627 - 653

   

7. Orthonormal Representations of H-Free Graphs

   • Igor Balla
   • Shoham Letzter
   • Benny Sudakov

   Ricky Pollack Memorial Issue 09 March 2020 Pages: 654 - 670

8. Pseudo-Edge Unfoldings of Convex Polyhedra

   • Nicholas Barvinok
   • Mohammad Ghomi

   Ricky Pollack Memorial Issue 03 April 2019 Pages: 671 - 689

   

9. Efficient Packings of Unit Squares in a Large Square

   • Fan Chung
   • Ron Graham

   Ricky Pollack Memorial Issue 09 April 2019 Pages: 690 - 699

   

10. Random Sampling with Removal

    • Kenneth L. Clarkson
    • Bernd Gärtner
    • May Szedlák

    Ricky Pollack Memorial Issue 31 March 2020 Pages: 700 - 733

11. The Isostatic Conjecture

    • Robert Connelly
    • Steven J. Gortler
    • Maria Yampolskaya

    Ricky Pollack Memorial Issue 25 February 2019 Pages: 734 - 758

    

12. Tri-partitions and Bases of an Ordered Complex

    • Herbert Edelsbrunner
    • Katharina Ölsböck

    Ricky Pollack Memorial Issue Open access 20 March 2020 Pages: 759 - 775

    

13. Arrangements of Pseudocircles: On Circularizability

    • Stefan Felsner
    • Manfred Scheucher

    Ricky Pollack Memorial Issue 03 April 2019 Pages: 776 - 813

    

14. Cages of Small Length Holding Convex Bodies

    • Augustin Fruchard
    • Tudor Zamfirescu

    Ricky Pollack Memorial Issue 31 October 2019 Pages: 814 - 837

    

15. Dynamic Planar Voronoi Diagrams for General Distance Functions and Their Algorithmic Applications

    • Haim Kaplan
    • Wolfgang Mulzer
    • Micha Sharir

    Ricky Pollack Memorial Issue Open access 22 September 2020 Pages: 838 - 904

    

16. On Sets of n Points in General Position That Determine Lines That Can Be Pierced by n Points

    • Chaya Keller
    • Rom Pinchasi

    Ricky Pollack Memorial Issue 24 April 2020 Pages: 905 - 915

    

17. Conflict-Free Coloring of Intersection Graphs of Geometric Objects

    • Chaya Keller
    • Shakhar Smorodinsky

    Ricky Pollack memorial issue 03 June 2019 Pages: 916 - 941

    

18. Coloring Intersection Hypergraphs of Pseudo-Disks

    • Balázs Keszegh

    Ricky Pollack Memorial Issue Open access 30 October 2019 Pages: 942 - 964

    

19. Dense Point Sets with Many Halving Lines

    • István Kovács
    • Géza Tóth

    Ricky Pollack Memorial Issue Open access 25 March 2019 Pages: 965 - 984

    

20. Rational Points of Some Elliptic Curves Related to the Tilings of the Equilateral Triangle

    • Miklós Laczkovich

    Ricky Pollack Memorial Issue Open access 22 October 2019 Pages: 985 - 994

21. Bisectors and Pinned Distances

    • Ben Lund
    • Giorgis Petridis

    Ricky Pollack Memorial Issue 23 August 2019 Pages: 995 - 1012

22. The Graphs Behind Reuleaux Polyhedra

    • Luis Montejano
    • Eric Pauli
    • Edgardo Roldán-Pensado

    Ricky Pollack Memorial Issue 06 July 2020 Pages: 1013 - 1022

    

23. Local Spectral Expansion Approach to High Dimensional Expanders Part II: Mixing and Geometrical Overlapping

    • Izhar Oppenheim

    Ricky Pollack memorial issue 30 July 2019 Pages: 1023 - 1066

24. From Crossing-Free Graphs on Wheel Sets to Embracing Simplices and Polytopes with Few Vertices

    • Alexander Pilz
    • Emo Welzl
    • Manuel Wettstein

    Ricky Pollack Memorial Issue 04 November 2019 Pages: 1067 - 1097

    

25. Constructing Planar Support for Non-Piercing Regions

    • Rajiv Raman
    • Saurabh Ray

    Ricky Pollack Memorial Issue 22 June 2020 Pages: 1098 - 1122