Geodesic

Tome 32 (2025) no. 2

Sommaire

What is a \(4\)-connected matroid?
Every signed planar graph of girth 5 has circular chromatic number strictly less than 4
Fusions of the tensor product of a strongly regular graph
Rank functions and invariants of delta-matroids
Signed circuit \(6\)-covers of signed \(K_4\)-minor-free graphs
A three-regime theorem for flow-firing
Realizability in Matoušek unique sink orientations: characterization and complexity gap
On the order of \(P\)-strict promotion on \(\mathsf{V}\times [\ell]\)
On the order sequence of a group
Reflection groups and quiver mutation: diagrammatics
The skew immaculate Hecke poset and 0-Hecke modules
Simplicial complexes and matroids with vanishing \(T^2\)
Graphs with large clique number whose second largest eigenvalue does not exceed \((\sqrt{5}-1)/2\)
Turán colourings in off-diagonal Ramsey multiplicity
Randomized algorithms to generate hypergraphs with given degree sequences
List colorings of \(k\)-partite \(k\)-graphs
Weighted tree games
Generalized spectral characterization of signed trees
New structures and their applications to variants of zero forcing and propagation time
New bounds on a generalization of Tuza's conjecture
A random coloring process gives improved bounds for the Erdős-Gyárfás problem on generalized Ramsey numbers
Almost all 9-regular graphs have a modulo-5 orientation
On the \(A_\alpha\)-index of \(C_4\)-free graphs with given order or size
Grid minors and products
A new family of \((q^{4}+1)\)-tight sets with an automorphism group \(F_{4}(q)\)
Long cycles and spectral radii in planar graphs
Avoidability beyond paths
Edge cover through edge coloring
Frozen colourings in \(2 K_2\)-free graphs
On the hyperdeterminants of Steiner distance hypermatrices
3-cluster-free families of subspaces
Sparse vertex cutsets and the maximum degree
A max-min problem on spectral radius and connectedness of graphs
Classification of vertex-transitive digraphs of order a product of two distinct primes via automorphism group
Tangled paths: a random graph model from Mallows permutations
The ascent lattice on Dyck paths
A generalization of conjugation of integer partitions
Detecting graphical and digraphical regular representations in groups of squarefree order
Bounds for greedy \(B_h\)-sets
Degree deviation and spectral radius
On the off-diagonal unordered Erdős-Rado numbers
A Mathon-type construction for digraphs and improved lower bounds for Ramsey numbers
New bounds on families without large sunflowers
Uniform recurrence in the Motzkin numbers and related sequences mod \(p\)
How to get the random graph with non-uniform probabilities?
A combinatorial proof of a symmetry for a refinement of the Narayana numbers
Generalized quaternion groups with the \(m\)-DCI property
The Latin tableau conjecture
Stability of Cayley graphs and Schur rings
Lexicographic shellability of sects
Bijectivizing the PT-DT correspondence
The largest size of \((t, t+d, t+2d)\)-core partitions
A variable version of the quasi-kernel conjecture
Weak Bruhat interval modules of finite-type \(0\)-Hecke algebras and projective covers
The repetition threshold for ternary rich words
Covering numbers of some irreducible characters of the symmetric group