惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

IT之家
IT之家
The GitHub Blog
The GitHub Blog
美团技术团队
Security Latest
Security Latest
The Cloudflare Blog
D
DataBreaches.Net
Microsoft Azure Blog
Microsoft Azure Blog
V
Visual Studio Blog
宝玉的分享
宝玉的分享
钛媒体:引领未来商业与生活新知
钛媒体:引领未来商业与生活新知
T
The Exploit Database - CXSecurity.com
cs.AI updates on arXiv.org
cs.AI updates on arXiv.org
W
WeLiveSecurity
P
Proofpoint News Feed
V
Vulnerabilities – Threatpost
Schneier on Security
Schneier on Security
让小产品的独立变现更简单 - ezindie.com
让小产品的独立变现更简单 - ezindie.com
S
Security Affairs
腾讯CDC
H
Hacker News: Front Page
Microsoft Security Blog
Microsoft Security Blog
K
KPMG report finds enterprise disconnect between AI and its ROI | CIO
博客园 - 三生石上(FineUI控件)
C
Check Point Blog
S
Security @ Cisco Blogs
Google DeepMind News
Google DeepMind News
Cisco Talos Blog
Cisco Talos Blog
云风的 BLOG
云风的 BLOG
M
MIT News - Artificial intelligence
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
Security Archives - TechRepublic
Security Archives - TechRepublic
I
InfoQ
量子位
Apple Machine Learning Research
Apple Machine Learning Research
AWS News Blog
AWS News Blog
TaoSecurity Blog
TaoSecurity Blog
月光博客
月光博客
Exploit-DB.com RSS Feed
Exploit-DB.com RSS Feed
aimingoo的专栏
aimingoo的专栏
S
SegmentFault 最新的问题
A
Arctic Wolf
Hacker News: Ask HN
Hacker News: Ask HN
D
Docker
Hugging Face - Blog
Hugging Face - Blog
I
Intezer
雷峰网
雷峰网
Engineering at Meta
Engineering at Meta
WordPress大学
WordPress大学
SecWiki News
SecWiki News
N
News and Events Feed by Topic

math.CO updates on arXiv.org

Complement Submodular Information Measures for Balanced and Robust Data Selection A Proof of a Conjecture on Positive and Negative Square Energies of Unicyclic Graphs Laplacian Spectrum of the Weakly Zero-Divisor Graph of a Finite Commutative Ring An identity for second Eulerian numbers via lattice-point counting $t$-tone edge coloring of graphs Constructing Maximal Bumpless Pipedreams for Double Grothendieck Polynomials Mubayi's Polynomial-Ideal Conjecture and Cover-Ideal Turán Methods Implicit Binarization via Complex Phase Dynamics in Combinatorial Optimization The limits of Schur multipliers in Pólya conversion problems for the $q$-permanent function Universality theorems for generalized splines Framing Triangulations for Arbitrary Integer Flow Polytopes On the Common Generalization of Gentle Algebras and Framed Directed Acyclic Graphs The complexity of frugal digraph homomorphisms Chaotic and periodic behavior of jeu de taquin on infinite Young tableaux Enumerating Pattern Avoiding Parking Functions Incidence toric ideals and three-point functions Unique Winning Opening Move in Three-Row Chomp Strong majority colorings of graphs A Balancing Theorem for Spanning Trees of Rectangular Grid Graphs Spectral radius and edge-disjoint connected factors of graphs New invariants for rank metric codes, with applications to the classification of rank two semifields of order 256 Flexible DP-4-coloring of planar graphs without 4-cycles and intersecting triangles Balanced intersection size distributions in projective planes List Reconstruction Problem with List Size Two Is Dimensionality a Barrier for Retrieval Models? The INIEP: Irreducible and Positive Realizations The number of Pfaffian orientations on punctured polygonally cellulated surfaces Explicit Construction of Polytopes whose Ehrhart Polynomials Realize any Given Sign Pattern Finite-state enumeration of adjacency-constrained 132-avoiding permutations AMDS and quantum AMDS Constacyclic codes of length $4p^ς$ over $\mathbb{F}_{{p}^{m}}$ Weisfeiler-Leman Is Incomplete on Simple Spectrum Graphs, so Canonicalize Them A superlinear improvement on line-free sets in $\mathbb{F}_p^3$ Central limit theorems for high dimensional lattice polytopes: cosmological polytopes Finding blowups one vertex at a time Maximum Probability of Independence in Transitive Matroids Higher Rank-Support Weights and q-Polymatroids Localized Turán-type inequalities for $Q$-index Functional codes arising from rank $n$ Hermitian varieties and hypersurfaces in low dimensions Generalizing OOOOOOB Complex Representations of Groups and Involutions of its Automorphisms Distributions of Iwasawa $λ$-invariants of $\mathbf{Z}_p$-towers over supersingular isogeny graphs The Closure of LCD-to-GI Reductions via Generalized Inner Products Sets of large values of polynomial multi-correlation functions Polylogarithmic Full-Chord Buffon Discrepancy Star-Shaped Integral Cartan-Type Matrices and an Egyptian-Fraction Classification of Affine Weighted Trees Symplectic lattice counting and zeta functions of higher Heisenberg groups Concise and elegant proofs of three formulas for complete Bell polynomials On Reed-Muller subcodes, Grassmannian partitions and sum-free functions Holographic functions and neural networks An Ore-type condition for $H$-tilings in graphs From Halin's Edge Removability to Matching Removability in $k$-Connected Graphs Reciprocals of Partition Polynomials A Comprehensive Study of Clique Graphs and Clique Regular Graphs Targeting Clause Type Distributions: a Picklock for Random Satisfiability Problems Hypercube geodesics with few colour changes Every signed planar graph is $5$-choosable: A short proof and refinements The Symmetries of Three-Layer ReLU Networks The Geometry of Cooperative Game Solutions: Stratified Egalitarian Shapley Values An Axiomatic Theory of Tie-Breaking: Impossibility, Characterization, and Decomposition Every Minimal Counterexample to the Erdős-Gyárfás Conjecture is Predominantly Cubic TriVAL: A Tri-Validation Framework for Faithful Automatic Optimization Modeling Learning Minimally Rigid Graphs with High Realization Counts Geometry of Rényi Entropy on the Majorization Lattice On $\ell$-weakly cross $t$-intersecting families for sets and vector spaces Invariant-Based Diagnostics for Graph Benchmarks Thresholds for Tic-Tac-Toe on Finite Affine Spaces Almost-Orthogonality in Lp Spaces: A Case Study with Grok On the Architectural Complexity of Neural Networks Most ReLU Networks Admit Identifiable Parameters A Partition-Based Generating Function for Row-Convex Polyominoes Word-Representability of Shift Graphs Trees and Graphs with Non Log-concave Dominating Set Sequence via AI Tools The Banach-Butterfly Invariant: Influence-Adaptive Walsh Geometry for Ternary Polynomial Threshold Functions New Bounds for Zarankiewicz Numbers via Reinforced LLM Evolutionary Search Order-Sensitive Sequential Interventions on Ideal Lattices Mathematical Foundations for Peer-to-Peer Lattice Computation Doubly Saturated Ramsey Graphs: A Case Study in Computer-Assisted Mathematical Discovery A weighted angle distance on strings Achieving the Kesten-Stigum bound in the non-uniform hypergraph stochastic block model A Complete Symmetry Classification of Shallow ReLU Networks Ollivier-Ricci Curvature of Riemannian Manifolds and Directed Graphs with Applications to Graph Neural Networks Adaptive Threshold-Driven Continuous Greedy Method for Scalable Submodular Optimization A semicontinuous relaxation of Saito's criterion and freeness as angular minimization Representing Higher-Order Networks: A Survey of Graph-Based Frameworks Reinforced Generation of Combinatorial Structures: Ramsey Numbers Two Dimensional Subtraction -- Transfer Games Almost All Vectorial Functions Have Trivial Extended-Affine Stabilizers Split-Twin Extensions Preserving Seymour Vertices Three formulas for CSM classes of open quiver loci Möbius transforms and Shapley values for vector-valued functions on weighted directed acyclic multigraphs The existence of unexpected automorphisms in direct product graphs When are Hopf algebras determined by integer sequences? Self-affine quadrangles Pointwise order of generalized Hofstadter functions G, H and beyond Strong Embeddings of 3-Connected Cubic Planar Graphs on Surfaces of non-negative Euler Characteristic A Mathematical Reconstruction of Endothelial Cell Networks Progressive and Rushed Dyck Paths Symmetric noncrossing partitions of an annulus with double points Improved Bounds for Multicovering Hypergraphs The pre-Pieri rules
Designing sparse temporal graphs satisfying connectivity requirements
Thomas Bellitto, Jules Bouton Popper, Justine Cauvi, Bruno Escof · 2026-04-30 · via math.CO updates on arXiv.org

Connectivity of temporal graphs has been widely studied both as graph theory and as gossip theory. In particular, it is well known that in order to connect every vertex to every other, a temporal graph needs to have at least $2n-4$ edges where $n$ is the number of vertices. This paper investigates the optimal number of edges required to satisfy partial connectivity requirements. We introduce the problem of Connectivity Request Satisfaction where we are given a directed graph that we call the request graph, where an arc from $u$ to $v$ means that we need to be able to go from $u$ to $v$. Our goal is to build a temporal graph on the same vertex set with as few temporal edges as possible that would satisfy all the requests. When the graph we build is directed, we prove that the number of temporal arcs required is $n-\mathrm{cc}+\mathrm{dfvs}$ where $\mathrm{cc}$ is the number of connected component of the request graph and $\mathrm{dfvs}$ is the size of its smallest directed feedback vertex set. It follows that the problem is NP-complete but inherits fixed parameter tractability properties of Directed Feedback Vertex Set. When the graph we build is undirected, we establish a characterization of strongly connected request graphs that admit a solution with $n-1$ edges: it is possible if and only if any set of pairwise non-vertex-disjoint closed walks all share a common vertex. We prove that this criteria can be tested in polynomial time.