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Jun 12

A local bijection between alternating sign matrices and descending p... arXiv:2606.13653

arXiv math.CO Combinatorics

arXiv math.CO Combinatorics @mathCObot

Jun 12

Wang-Qiu-Hu switching and isomorphism arXiv:2606.13510 Weak order: Alternating sign matrices, monotone triangles, and bumpl... arXiv:2606.13518 On the non-existence of skew-Hadamard difference sets in certain non... arXiv:2606.13536

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Jun 12

Monotonicity of the rank functions for concave compositions arXiv:2606.13274 A complete solution to the biased Alon-Krivelevich-Spencer-Szab\'o c... arXiv:2606.13309 Generalised Prisms and Euclidean Ramsey Theory arXiv:2606.13472

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Jun 12

The planar Tur\'an number of \{K_{4},\Theta_{6}^{i}\} arXiv:2606.13131 Computing Joins in the Weak Order of Type B Coxeter Groups: an Algor... arXiv:2606.13154 Permanental Inequalities and Unit Interval Orders arXiv:2606.13162

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Jun 12

On perfect flag-rank metric codes arXiv:2606.12934 Maximum spectral gap of regular graphs with bounded essential edge-c... arXiv:2606.12948 Critical Sets in Latin Squares and Associated Structures arXiv:2606.12996

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arXiv math.CO Combinatorics @mathCObot

Jun 12

Partition-selected flow polynomials and associated arrangements arXiv:2606.12861 Monochromatic k in a row arXiv:2606.12880 A bijection on balanced words reversing both \text{des} and \text{maj} arXiv:2606.12919

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Jun 12

On partially matchable subspaces in a field extension arXiv:2606.12725 Nordhaus-Gaddum upper bounds for graph connectivity parameters arXiv:2606.12751 Completely Independent Spanning Trees in k-Outerplanar Triangulated ... arXiv:2606.12827

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Jun 11

On a conjecture of Las Vergnas arXiv:2606.12335 Forbidden Intersection Theorems for Matrix Spaces arXiv:2606.12380 Arrangements of Consecutive Numbers in Mallows Permutations arXiv:2606.12410

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Jun 11

A note on geometric colorings of the Moser lattice arXiv:2606.12325 Cooling graph products arXiv:2606.12330 Resolving the Schwartz Quadratic Meander Number Conjecture arXiv:2606.12331

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Jun 11

On Brouwer's Laplacian conjecture arXiv:2606.12197 Prescribed leftover chords and one-extra-edge Berge pancyclicity arXiv:2606.12230 Average degrees of edge-\Delta-critical multigraphs arXiv:2606.12271

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Jun 11

On a hypergraph Tur\'an problem of Balogh-Bohman-Bollob\'as-Zhao arXiv:2606.12133 On the maximum number of vectors in \{0,\pm1\}^n with forbidden inne... arXiv:2606.12178 Beating Product Constructions for Linear Equations Over Finite Fields arXiv:2606.12194

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Jun 11

Hockey-Stick Domination and Distributional Comparison on Finite Posets arXiv:2606.12017 Extremal number of edges in graphs without homeomorphically irreduci... arXiv:2606.12093 Middle orders: all distributive lattices between weak and Bruhat arXiv:2606.12129

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Jun 11

Enumerating inherited conics in Andr\'e planes of odd order arXiv:2606.11763 Special Matchings, Brenti's Conjecture, and the Combinatorial Invari... arXiv:2606.11776 On the hitting time of Hamiltonicity in bipartite Dirac graphs arXiv:2606.11992

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Jun 11

Subtraction Nim with Continuous Parameters arXiv:2606.11658 Krahn-Szeg\H o type inequalities for graphs arXiv:2606.11659 Vertex-critical co-gem-free graphs arXiv:2606.11757

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Jun 11

Extremal results on the second largest eigenvalue of graphs with giv... arXiv:2606.11623 Upper bounds of the second largest eigenvalue of graphs arXiv:2606.11633 A parity Erd\H{o}s-Hajnal theorem for t-intersecting curves arXiv:2606.11649

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Jun 11

On Balance, To What Degree is Burr's Conjecture True? arXiv:2606.11410 Multiplicity of Laplacian eigenvalue 1 of a graph arXiv:2606.11547 Superspace coinvariants and inverse systems for GL_n(\mathbb{F}_q) arXiv:2606.11549

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Jun 11

The SOS Rank of a 5 \times 4 Biquadratic Form via Orthogonality arXiv:2606.11194 On Terwilliger \mathbb{F}-algebras of factorial association schemes II arXiv:2606.11321 Extremal Matchings and Height Functions arXiv:2606.11335

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Jun 10

A Proof of Nash-Williams' Conjecture arXiv:2606.11178

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Jun 10

Enumeration of certain subsets of uprooted trees and spherical parki... arXiv:2606.11137 Sharp bounds on k-wise generalizations of oddtowns and eventowns arXiv:2606.11139 A general bound on R(C_k,H) arXiv:2606.11174

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Jun 10

There are matroid toric ideals without quadratic Gr\"obner bases arXiv:2606.11014 Edge-regular graphs with non-negative curvature have polynomial growth arXiv:2606.11094 On the maximum and negative frustration indices of graphs arXiv:2606.11108