The Kelmans-Seymour conjecture for apex graphs

The kernel of the adjacency matrix of a rectangular mesh

The Knotting-Unknotting Game played on Sums of Rational Shadows

The Knowlton-Graham partition problem

The known maximal partial ovoids of size $q^2-1$ of Q(4,q)

The KOH terms and classes of unimodal N-modular diagrams

The Kontsevich weight of a wheel with spokes pointing outward

The KP hierarchy, branched covers, and triangulations

The Kronecker product of Schur functions indexed by two-row shapes or hook shapes

The kth Upper Bases of Primitive Non-powerful Signed Digraphs

The Kuratowski covering conjecture for graphs of order < 10 for the nonorientable surfaces of genus 3 and 4

The K_4-free process

The Label Algorithm For Irreducible Decomposition of Monomial Ideals

The ladder crystal

The Laplacian eigenvalues of graphs: a survey

The Laplacian energy of random graphs

The Laplacian lattice of a graph under a simplicial distance function

The Laplacian Spectra of Graphs and Complex Networks

The large-parts formula for p(n)

The largest $n-1$ Hosoya indices of unicyclic graphs