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54.9k resultsmath.CO2026
A Lovász Theta Parameter and Theta Body for Signed Graphs
Gabriel Coutinho
math.CO2026
The maximum index and spectral radius of unbalanced signed multipartite graphs
Yiting Cai, Bo Zhou
math.CO2026
Idleness Functions for Ollivier-Ricci Curvature on Hypergraphs
Qing Xia
math.CO2026
Ramsey multiplicity for ordered graphs
Mengya He, Yaping Mao, Bing Wei +1
math.CO2026
Bounds on Odd and Odd-Even Induced Subgraphs
Qiwen Guo, Gregory Gutin, Yiming Hao +3
math.CO2026
Projective-Plane Sharp States and Repulsion in Linear Crown-Free Hypergraphs
Mahesh Ramani
math.CO2026
The P-vertex problem for graphs with perfect matchings
G. Arunkumar, U. S. Jerisha
math.CO2026
Linear Lower Bounds for the Modular Chromatic Index
Xiao-Chuan Liu, Boyan Xu, Xu Yang
math.CO2026
Graph Eigenvalues and Projection Constants
Varun Sivashankar, Quanyu Tang, Tanay Wakhare
math.CO2026
Cyclic Sources of Strong Domination in Graph Norms
Shuyan Chen
math.CO2026
Counterexamples to a conjecture of Hoa on maximal non-Hamiltonian graphs
Xingzhi Zhan
math.CO2026
The equality case of Ehrhart's volume conjecture
Jihao Liu
math.CO2026
Congruent Triangular Faces, Reflections Allowed: Universal Realization and the Minimum Face Count in Problem B22
George M. Georgiou
math.CO2026
Vertex-distinguishing chromatic index of digraphs
Yuping Gao, Zijun Qin, Songling Shan
math.CO2026
Convolutive sequences, II: Parametrizations
Shane Chern, Dennis Eichhorn, Shishuo Fu +1
math.CO2026
Wei duality, Fomin-Greene duality and demimatroids
Thomas Britz
math.CO2026
The Middle Stair for Complete Bipartite Parallel Chip-Firing
Minkyu Jung
math.CO2026
Binary X-rays of doubly stochastic matrices
Bangzheng Li, Yuewei Liu, Yuan Yao
math.CO2026
Square roots in the Appell group and Sprugnoli arrays
Paul Barry
math.CO2026
A quantitative container characterization of one-sided testability
Gaia Carenini, Cameron Seth, Yuichi Yoshida
math.CO2026
Combinatorial theorems relative to sparse sets
David Conlon
math.CO2026
An explicit construction of two completely independent spanning trees in the four-dimensional dual-cube
Jitendra Prajapati
math.CO2026
Joins and ear decompositions beyond graphic matroids
Yuhang Bai, Kristóf Bérczi, Chaitanya Nalam
math.CO2026
On three open problems in zero-sum Ramsey numbers
Cheng Chi, Jialin He, Quan Sun