Algebraic topology -- Homotopy theory -- Loop space machines, operads Differential geometry -- Symplectic geometry, contact geometry -- Global theory of symplectic and contact manifolds Differential geometry -- Symplectic geometry, contact geometry -- Lagrangian submanifolds; Maslov index Group theory and generalizations -- Special aspects of infinite or finite groups -- Braid groups; Artin groups Low-dimensional topology Manifolds (Mathematics) Manifolds and cell complexes -- Differential topology -- Equivariant algebraic topology of manifolds Manifolds and cell complexes -- Differential topology -- Symplectic and contact topology Manifolds and cell complexes -- Low-dimensional topology -- Invariants of knots and 3-manifolds Manifolds and cell complexes -- Low-dimensional topology -- Knots and links in $Ŝ3$ Manifolds and cell complexes -- Proceedings, conferences, collections, etc Simplexes (Mathematics) Symplectic and contact topology