Geodesic

Tome 28 (2021) no. 4

Sommaire

The rotor-routing torsor and the Bernardi torsor disagree for every non-planar ribbon graph
The Bernardi formula for nontransitive deformations of the braid arrangement
Edge-disjoint branchings in temporal digraphs
The maximum number of copies of \(K_{r,s}\) in graphs without long cycles or paths
Jones' conjecture in subcubic graphs
Two results on Ramsey-Turán theory
Normal polytopes and ellipsoids
Removahedral congruences versus permutree congruences
Counting non-crossing permutations on surfaces of any genus
The Erdős-Ko-Rado theorem for 2-pointwise and 2-setwise intersecting permutations
Cameron-Liebler \(k\)-sets in \(\text{AG}(n,q)\)
Characterizations of the \(G_2(4)\) and \(L_3(4)\) near octagons
A graph theory of rook placements
Some applications of Wagner's weighted subgraph counting polynomial
Zero-sum squares in bounded discrepancy \(\{-1,1\}\)-matrices
Matching complexes of \(3 \times n\) grid graphs
Principal specialization of dual characters of flagged Weyl modules
Toppling on permutations with an extra chip
Nonrepetitively 3-colorable subdivisions of graphs with a logarithmic number of subdivisions per edge
Saturation number of \(tK_{l,l,l}\) in the complete tripartite graph
A characteristic polynomial for the transition probability matrix of correlated random walks on a graph
Improved packings of \(n(n - 1)\) unit squares in a square
On factors of independent transversals in \(k\)-partite graphs
Bell polynomials and nonlinear inverse relations
Transversals and bipancyclicity in bipartite graph families
Resolutions of convex geometries
Popular differences for right isosceles triangles
Transitive avoidance games on boards of odd size
Bijections for faces of the Shi and Catalan arrangements
Asymptotic properties of random unlabelled block-weighted graphs
Biconed graphs, weighted forests, and \(h\)-vectors of matroid complexes
Generalized planar Turán numbers
On bipartite distinct distances in the plane
Paths of length three are \(K_{r+1}\)-Turán-good
Cycles in color-critical graphs
On the number of sum-free triplets of sets
Generalizations and strengthenings of Ryser's conjecture
Twenty Vertex model and domino tilings of the Aztec triangle
The exact linear Turán number of the sail
Diameters of cocircuit graphs of oriented matroids: an update
A survey of the Hadamard maximal determinant problem
\(r\)-critical numbers of natural intervals
On automorphisms of the double cover of a circulant graph
A combinatorial formula for Kazhdan-Lusztig polynomials of sparse paving matroids
Thin distance-regular graphs with classical parameters \((D, q, q, \frac{q^t-1}{q-1}-1)\) with \(t> D\) are the Grassmann graphs
Integral mixed Cayley graphs over abelian groups
Smaller extended formulations for spanning tree polytopes in minor-closed classes and beyond
A combinatorial bijection on di-sk trees
Automorphisms and some geodesic properties of ortho-Grassmann graphs
The choice number versus the chromatic number for graphs embeddable on orientable surfaces
Periodic solutions of one-dimensional cellular automata with uniformly chosen random rules
Pattern avoidance over a hypergraph
Regarding two conjectures on clique and biclique partitions
Combinatorial game distributions of Steiner systems
A new algorithm for embedding plane graphs at fixed vertex locations