Geodesic

Tome 28 (2021) no. 3

Sommaire

Computation of Al-Salam Carlitz and Askey-Wilson moments using Motzkin paths
The chromatic number of two families of generalized Kneser graphs related to finite generalized quadrangles and finite projective 3-spaces
A discrete Morse perspective on knot projections and a generalised clock theorem
Forbidden subgraphs of power graphs
On automorphisms of direct products of Cayley graphs on abelian groups
A greedoid and a matroid inspired by Bhargava's \(p\)-orderings
Half-graphs, other non-stable degree sequences, and the switch Markov chain
A generalization of the Bollobás set pairs inequality
Linear compactness and combinatorial bialgebras
Connector-breaker games on random boards
Representing graphs as the intersection of cographs and threshold graphs
Minimal automaton for multiplying and translating the Thue-Morse set
Partitions and the maximal excludant
Crossings and nestings over some Motzkin objects and \(q\)-Motzkin numbers
Transition matrices between Young's natural and seminormal representations
A note on restricted online Ramsey numbers of matchings
Duality pairs and homomorphisms to oriented and unoriented cycles
Permutations avoiding certain partially-ordered patterns
Variations on twins in permutations
A generalization of partition identities for first differences of partitions of \(n\) into at most \(m\) parts
Enumeration of planar constellations with an alternating boundary
Laplacian fractional revival on graphs
On the independent set sequence of a tree
Rainbow pancyclicity in graph systems
On asymmetric colourings of claw-free graphs
Perron and Frobenius meet Carathéodory
An upper bound for the size of \(s\)-distance sets in real algebraic sets
Nearly Gorenstein rings arising from finite graphs
Packing of mixed hyperarborescences with flexible roots via matroid intersection
Up- and down-operators on Young's lattice
An order on circular permutations
On the \(P_3\)-hull number of Kneser graphs
The geometric kernel of integral circulant graphs
The unit acquisition number of binomial random graphs
A note on repeated degrees of line graphs
Spectra of random regular hypergraphs
On the joint distribution of descents and signs of permutations
Stability of stretched root systems, root posets and shards
Bounds on antipodal spherical designs with few angles
Counting parabolic double cosets in symmetric groups
Permutation reconstruction from a few large patterns
Turán density of 2-edge-colored bipartite graphs with application on \(\{2, 3\}\)-hypergraphs
Eckhoff's problem on convex sets in the plane
On finite subnormal Cayley graphs
The linkedness of cubical polytopes: the cube
Spectral extremal results for hypergraphs
The index and spectrum of Lie poset algebras of types B, C, and D
Transversals, near transversals, and diagonals in iterated groups and quasigroups
Explicit Pieri inclusions
Sharp minimum degree conditions for the existence of disjoint theta graphs
Tight bounds on the clique chromatic number
On the maximum diameter of \(k\)-colorable graphs
A consecutive Lehmer code for parabolic quotients of the symmetric group
Trees, forests, and total positivity. I: \(q\)-trees and \(q\)-forests matrices
Partitioning permutations into monotone subsequences
Mating of discrete trees and walks in the quarter-plane
Planar lattice subsets with minimal vertex boundary
Discrete quantitative nodal theorem
Quickly proving Diestel's normal spanning tree criterion
Completing partial transversals of Cayley tables of Abelian groups