Volume 188

## Coarse hyperbolicity and closed orbits for quasigeodesic flows

Pages 1-48 by Steven Frankel | From volume 188-1

## The sharp threshold for making squares

Pages 49-143 by Paul Balister, Béla Bollobás, Robert Morris | From volume 188-1

## Geometric properties of the Markov and Lagrange spectra

Pages 145-170 by Carlos Gustavo Moreira | From volume 188-1

## Vertical perimeter versus horizontal perimeter

Pages 171-279 by Assaf Naor, Robert Young | From volume 188-1

## The algebraic hull of the Kontsevich–Zorich cocycle

Pages 281-313 by Alex Eskin, Simion Filip, Alex Wright | From volume 188-1

## On the local Birkhoff conjecture for convex billiards

Pages 315-380 by Vadim Kaloshin, Alfonso Sorrentino | From volume 188-1

## Hodge theory for combinatorial geometries

Pages 381-452 by Karim Adiprasito, June Huh, Eric Katz | From volume 188-2

## Blocks of symmetric groups, semicuspidal KLR algebras and zigzag Schur-Weyl duality

Pages 453-512 by Anton Evseev, Alexander Kleshchev | From volume 188-2

## Secondary power operations and the Brown–Peterson spectrum at the prime $2$

Pages 513-576 by Tyler Lawson | From volume 188-2

## Global existence of weak solutions for compressible Navier–Stokes equations: Thermodynamically unstable pressure and anisotropic viscous stress tensor

Pages 577-684 by Didier Bresch, Pierre--Emmanuel Jabin | From volume 188-2