On the purity of maximal weakly separated set families
On the rainbow vertex-connection
On the Ramsey multiplicity of complete graphs
On the Ramsey numbers for a combination of paths and Jahangirs
On the Ramsey numbers for paths and generalized Jahangir graphs
On the Ramsey-Turán numbers of graphs and hypergraphs
On the random satisfiable process
On the rank function of a differential poset
On the rank functions of $\mathcal{H}$-matroids
On the rank of a tropical matrix
On the ratio of maximum and minimum degree in maximal intersecting families
On the realization of double occurrence words
On the Reconstruction of Graph Invariants
On the relative importance of excluded minors
On the Removal Lemma for Linear Systems over Abelian Groups
On the Representability of Line Graphs
On the representability of totally unimodular matrices on bidirected graphs
On the representation of bent functions by bent rectangles
On the Residue Codes of Extremal Type II Z4-Codes of Lengths 32 and 40
On the resilience of Hamiltonicity and optimal packing of Hamilton cycles in random graphs