The srank Conjecture on Schur's $Q$-Functions
The Stabilizer Of Immanants
The Stadium Theorem
The Star of David Rule
The still-Life density problem and its generalizations
The strange algebra of combinatorial games
The Strengthened Hanna Neumann Conjecture I: A Combinatorial Proof
The strong perfect graph conjecture
The strong perfect graph theorem
The strong rainbow vertex-connection of graphs
The strong-connectivity of word-representable digraphs
The structure and classification of misère quotients
The structure and labelled enumeration of K_{3,3}-subdivision-free projective-planar graphs
The structure of 2-separations of infinite matroids
The structure of almost all graphs in a hereditary property
The structure of alternative tableaux
The structure of Chip Firing Games and related models
The structure of critical sets for F_p arithmetic progressions
The structure of decomposition of a triconnected graph
The structure of graphs with a vital linkage of order 2