On Randomly k-Dimensional Graphs
On rank functions for heaps
On reconstructing reducible n-ary quasigroups and switching subquasigroups
On reducibility of n-ary quasigroups
On refined enumerations of totally symmetric self-complementary plane partitions I
On refined enumerations of totally symmetric self-complementary plane partitions II
On regular configurations and disjoint cycles in shift graphs
On Reichenbach's causal betweenness
On representable graphs, semi-transitive orientations, and the representation numbers
On restricted unitary Cayley graphs and symplectic transformations modulo n
On rich lines in grids
On Roman, Global and Restrained Domination in Graphs
On Sampling without replacement and OK-Corral urn models
On scattered posets with finite dimension
On Separating Families of Bipartitions
On sequences of projections of the cubic lattice
On Sequential Coloring of Graphs and its Defining Sets
On Sequentially Cohen-Macaulay Complexes and Posets
On Serial Symmetric Exchanges of Matroid Bases
On sets of integers not containing long arithmetic progressions