On 2-Fold Covers of Graphs
On 2-switches and isomorphism classes
On 3-coloured tournaments
On 3-decomposable geometric drawings of $K_n$
On 3-lattices and spherical designs
On 3-regular 4-ordered graphs
On 321-avoiding permutations in affine Weyl groups
On a $\vec{C}_4$-ultrahomogeneous oriented graph
On a Balanced Property of Compositions
On a Bruhat-like poset
On a certain generalization of the Balog-Szemeredi-Gowers Theorem
On a certain representation of the chromatic polynomial
On a class of algebras defined by partitions
On a Class of Binary Matrices
On a class of determinants
On a class of infinite words with affine factor complexity
On a class of metrics related to graph layout problems
On a combinatorial problem of Erdős, Kleitman and Lemke
On a conjecture about enumerating $(2+2)$-free posets
On a Conjecture about the Number of Solutions to Linear Diophantine Equations with a Positive Integer Parameter