New in MathWorld -- May 2026
Saturday May 30, 2026
Friday May 29, 2026
- Constant Primes (modified)
- Degree Sequence (modified)
- e-Prime (modified)
- Integer Sequence Primes (modified)
- Pi-Prime (modified)
- Quasiaddition (modified)
Thursday May 28, 2026
- Apathy
- Backtracking (modified)
- Bicirculant Graph (modified)
- Chordal Graph (modified)
- Coarseness
- Connected Subgraph
- Constant Primes (modified)
- Crossing Number
- Cycle Basis
- Cycle Length Distribution Sequence
- Cycle Polynomial (modified)
- Digraph Inradius
- Digraph Outradius
- Edge-Transitive Graph (modified)
- Erdős-Gallai Theorem
- Eulerian Digraph
- Eulerian Graph (modified)
- Fully Reconstructible Graph (modified)
- Functional Digraph
- Functional Graph (modified)
- Graph Complexity
- Graph Cycle (modified)
- Graph Eccentricity (modified)
- Graph Factor (modified)
- Graphic Sequence (modified)
- Interval Graph (modified)
- Knot Crossing Number
- Line-Chromatic Number
- Line-Covering Number
- Line Digraph
- Line Graph (modified)
- Line-Independence Number
- Line-Symmetric Graph
- Local Subgraph
- Matchstick Graph (modified)
- Partition (modified)
- Path Number
- Pathos
- Permutation Group (modified)
- Pi-Prime (modified)
- Point-Covering Number
- Point-Independence Number
- Point-Symmetric Graph
- Reconstructible Graph (modified)
- Rigid Circuit Graph
- Self-Complementary Digraph
- Self-Complementary Graph (modified)
- Self-Converse Digraph
- Self-Dual Plane Graph
- Spanning Tree (modified)
- Square Root Graph
- Strong Digraph
- Strongly Connected Digraph (modified)
- Total Chromatic Number
- Total Coloring Conjecture
- Transitive Digraph (modified)
- Tree Number
- Unicyclic Graph (modified)
- Unilateral Digraph
- Unilaterally Connected Digraph
- Unpath Number
- Vertex-Transitive Graph (modified)
Wednesday May 27, 2026
- Circuit Rank (modified)
- Cycle Polynomial (modified)
- Field Embedding
- Field Homomorphism
- Galois Conjugate
- Graph Circumference (modified)
- Graph Cycle (modified)
- Imaginary Embedding
- Longest Cycle
- Longest Graph Cycle
- Longest Graph Path
- Longest Path (modified)
- Quasiaddition
- Real Embedding
- Unicyclic Graph (modified)
Monday May 25, 2026
- Anarboricity (modified)
- Arboricity (modified)
- Cyclic Graph (modified)
- Kneser Graph (modified)
- Non-Acyclic Graph
- Nonacyclic Graph
- Triangular Graph (modified)
Sunday May 24, 2026
- Elementary Function (modified)
- EML Function
- EML Operator
- Exp-Minus-Log Function
- Exp-Minus-Log Operator
- Graph Card (modified)
- Graph Deck (modified)
- Graph Reconstruction Conjecture (modified)
- Hypomorphic Graphs
- NAND (modified)
- Reconstructible Graph
Saturday May 23, 2026
Friday May 22, 2026
- Configuration (modified)
- Erdős Unit Distance Problem (modified)
- Goedgebeur Configuration
- Goedgebeur Graph (modified)
- Kummer Configuration (modified)
- Kummer Surface (modified)
- Levi Graph (modified)
- Maximally Dense Unit-Distance Graph (modified)
- Trope
- Trope Plane
Thursday May 21, 2026
- Class Field Tower
- Erdős Unit Distance Problem (modified)
- Goedgebeur Graph (modified)
- Golod-Shafarevich Theorem
- Knot Signature (modified)
- Matrix Multiplication (modified)
- Maximally Dense Unit-Distance Graph (modified)
- Strassen Formulas (modified)
Wednesday May 20, 2026
- 2-Pebbling Property
- Deck Transformation (modified)
- Graph Cover (modified)
- Graph Pebbling
- Laman Graph (modified)
- Pebble Game
- Pebbling Move
- Regular Graph Cover
- Transmission-Minimal Regular Graph (modified)
- Voltage Graph (modified)
Tuesday May 19, 2026
- Core Decomposition
- k-Core (modified)
Thursday May 14, 2026
- Base Graph
- Cage Graph (modified)
- Covering Graph (modified)
- Dart (modified)
- Derived Graph (modified)
- Edge Cover (modified)
- Graph Cover
- Graph Covering
- Graph Projection
- Lift (modified)
- No-Three-in-a-Line-Problem (modified)
- Rotation System (modified)
- Snub Icosidodecadodecahedral Graph (modified)
- Topological Graph Theory
- Voltage Graph
- Voltage Group
Wednesday May 13, 2026
- Box Graph
- Cage Graph (modified)
- Transmission-Minimal Regular Graph (modified)
- Triplex Graph
Tuesday May 12, 2026
- Bi-Cayley Graph
- Bi-Circulant Graph
- Bicirculant Graph
- Circulant Graph (modified)
- Group Element
- Group Operation
- Haar Graph (modified)
- Inverse Element
- Regular Group Action
- Semi-Cayley Graph
- Semiregular Group Action
- Sharply Transitive Group Action
- Simply Transitive Group Action
- Smallest Cubic Crossing Number Graph (modified)
- Smallest Quartic Crossing Number Graph (modified)
- Transmission-Minimal Regular Graph
- Transmission-Regular Graph (modified)
Monday May 11, 2026
- Average Distance
- Cyclic Chromatic Number (modified)
- Cyclic Coloring Conjecture (modified)
- Facially Complete Planar Embedding (modified)
- Folded Cube Graph (modified)
- Graph Distance Matrix (modified)
- Graph Transmission (modified)
- Map Graph (modified)
- Mean Distance (modified)
- Vertex Transmission (modified)
- Wiener Index (modified)
Sunday May 10, 2026
- Accordion Graph
- Cellular Embedding
- Circular Permutation (modified)
- Cyclic Chromatic Number (modified)
- Cyclic Coloring Conjecture
- Cyclic Order
- Four-Color Theorem (modified)
- Graph Face
- Plummer-Toft Graph (modified)
- Rotation System (modified)
Saturday May 9, 2026
- Projective Planar Graph (modified)
Friday May 8, 2026
- Heilbronn Triangle Problem (modified)
- Matchstick Graph (modified)
- No-Three-in-a-Line-Problem (modified)
- Prime Knot (modified)
Thursday May 7, 2026
Wednesday May 6, 2026
- Goedgebeur Graph (modified)
- Petersen Line Graph (modified)
- Smallest Quartic Crossing Number Graph (modified)
Sunday May 3, 2026
- Lattice Graph (modified)
- Petersen Line Graph (modified)
Saturday May 2, 2026
- Brussels Graph (modified)
- Claw Graph (modified)
- Contiguous USA Graph (modified)
- Cubeplex Graph (modified)
- Errera Graph (modified)
- Foster Cage (modified)
- Fritsch Graph (modified)
- Gewirtz Graph (modified)
- Goedgebeur Graph
- Goldner-Harary Graph (modified)
- Gosset Graph (modified)
- Gray Graph (modified)
- Hammer Graph (modified)
- Harries Graph (modified)
- Harries-Wong Graph (modified)
- Heawood Four-Color Graph (modified)
- Higman-Sims Graph (modified)
- Hoffman Graph (modified)
- Hoffman-Singleton Graph (modified)
- Icosidodecahedral Graph (modified)
- Jørgensen Graph (modified)
- Kittell Graph (modified)
- Lemke Graph (modified)
- Ljubljana Graph (modified)
- Local McLaughlin Graph (modified)
- M_22 Graph (modified)
- Markström Graph (modified)
- McGregor Map (modified)
- Meringer Graph (modified)
- Nechushtan Graph (modified)
- Pappus Graph (modified)
- Pasch Graph (modified)
- Pentakis Icosidodecahedral Graph (modified)
- Pentatope Graph (modified)
- Perihamiltonian Graph (modified)
- Petersen Graph (modified)
- Petersen Line Graph
- Platypus Graph (modified)
- Poussin Graph (modified)
- Reye Graph (modified)
- Robertson-Wegner Graph (modified)
- Schläfli Double Six Graph (modified)
- Schläfli Graph (modified)
- Singleton Graph (modified)
- Sousselier Graph (modified)
- Spence Graph (modified)
- Square Graph (modified)
- Szekeres Snark (modified)
- Triangle Graph (modified)
- Truncated Pentakis Dodecahedral Graph (modified)
- Tutte 12-Cage (modified)
- Twinplex Graph (modified)
- Wagner Graph (modified)
[ 2026 ▪ 2025 ▪ 2024 ▪ 2023 ▪ 2022 ▪ 2021 ▪ 2020 ▪ 2019 ▪ 2018 ▪ 2017 ▪ 2016 ▪ 2015 ▪ 2014 ▪ 2013 ▪ 2012 ▪ 2011 ▪ 2010 ▪ 2009 ▪ 2008 ▪ 2007 ▪ 2006 ▪ 2005 ▪ 2004 ▪ 2003 ▪ 2002 ▪ 2001 ▪ 2000 ▪ 1999 ]