New in MathWorld -- July 2026

Friday July 31, 2026

Thursday July 30, 2026

1-Arc-Regular Graph
1-Regular Graph
ABP
Algebraic Branching Program
Appell Hypergeometric Function (modified)
Berman-Gévay-Pisanski Configuration
Berman-Gévay-Pisanski Graph
Bokowski-Pilaud Configuration
Bokowski-Pilaud Graph
Bokowski-Schewe Configuration
Bokowski-Schewe Graph
Complexity (modified)
Computational Complexity (modified)
Configuration (modified)
Dehn Invariant (modified)
Dyson-Schwinger Equations (modified)
Flexible Polyhedron (modified)
Functional Integral
Geometric Realization (modified)
Gray Graph (modified)
Grünbaum 20_4 Configuration
Grünbaum 20_4 Graph
Grünbaum-Rigby Configuration (modified)
Grünbaum-Rigby Graph (modified)
Hessian Conjecture (modified)
Holonomic Rank
Holonomic System
Horn Function (modified)
Horn System
Jacobian Conjecture (modified)
Keller Graph (modified)
Keller's Conjecture (modified)
Lauricella Functions (modified)
Levi Graph (modified)
Linear Partial Differential Equation
Matrix Trace (modified)
Nonaveraging Sequence (modified)
Nonlinear Partial Differential Equation
Path Polynomial (modified)
Pfaffian System
Point at Infinity (modified)
Progression-Free Set
Racah W-Coefficient (modified)
Rational Tetrahedron (modified)
Regge Group
Regge Symmetry (modified)
Regge Transformation (modified)
Rotation System (modified)
Salem-Spencer Set
Schläfli Differential Formula
Series-Parallel Graph (modified)
Sonine-Schafheitlin Formula (modified)
Space-Filling Tetrahedron (modified)
Square Inscribing (modified)
s-t Path Polynomial
Supertrace
Unfolding (modified)
Weber-Schafheitlin Integral
Wetterich Equation (modified)

Wednesday July 29, 2026

Change of Variables
Cyclic Ordering
Dyson-Schwinger Equations
Functional Differential Equation (modified)
Hessian Conjecture
Jacobian Conjecture (modified)
Rational Tetrahedron
Regge Symmetry
Regge Transformation
Rotation System (modified)
Schwinger-Dyson Equations
Spherical Ring (modified)
SPQR Tree (modified)
Voltage Graph (modified)
Wetterich Equation
Wigner 6j-Symbol (modified)

Tuesday July 28, 2026

Monday July 27, 2026

Antisoliton
Bicentric Quadrilateral (modified)
Bielliptic Quadrilateral
Bouwer Graph (modified)
Breather Surface (modified)
Chordless Graph (modified)
Circumellipse (modified)
Compatibility Equations
Fundamental Theorem of Surface Theory
Gauss-Codazzi Equations (modified)
Graph Coloring (modified)
Hilbert's Theorem on Regular Surfaces
Inellipse (modified)
John Ellipse
John Ellipsoid
John's Theorem
Linear System of Equations (modified)
Löwner Ellipse
Löwner Ellipsoid
Peterson-Mainardi-Codazzi Equations (modified)
Pivot
Pivot Element
Proper Coloring
Quadrilateral (modified)
Singular Curve
Soliton (modified)
Starfish Graph (modified)

Sunday July 26, 2026

Saturday July 25, 2026

Friday July 24, 2026

Centipede Graph (modified)
Computational Irreducibility (modified)
Corona Graph Product
Corona Product
Cubic Vertex-Transitive Graph (modified)
Fenchel-Nielsen Coordinates
Fricke-Macbeath Graph (modified)
Fuzzy Graph
Fuzzy Set
Graph (modified)
Graph Corona Product
Graph Embedding (modified)
Graph Join (modified)
Icositruncated Dodecadodecahedral Graph
Icositruncated Dodecadodecahedron (modified)
Klein Graphs (modified)
Pair of Pants (modified)
Pants Decomposition (modified)
p-Skeleton
Ruliology (modified)
Skeleton (modified)
Special Unitary Group (modified)
Star Graph (modified)
Wheel Graph (modified)
Wigner D-Function (modified)

Wednesday July 22, 2026

1-Skeleton
Bidirected Edge
Directed Edge
Fricke-Macbeath Curve
Fricke-Macbeath Graph
Fricke-Macbeath Surface
Gegenbauer Polynomial (modified)
Graph Arc (modified)
Hurwitz Bound
Hurwitz Map
Hurwitz's Automorphism Theorem
Ideal (modified)
Image Conjecture
Jacobian Conjecture (modified)
Macbeath Curve
Macbeath Graph
Macbeath Surface
Mathieu Subspace
Nontrivial Zero
Not Even Wrong
Pair of Pants
Pants Decomposition
Regular Map
Skeleton (modified)
Small Rhombicosidodecahedral Graph (modified)
Trivial Zero
Undirected Edge
Vanishing Conjecture

Tuesday July 21, 2026

Abel Prize (modified)
Airy Function Zeros (modified)
Algebraic Number (modified)
Axis (modified)
Bell Polynomial (modified)
Bessel Function Zeros (modified)
CaputoD
Caputo Derivative
Caputo Fractional Derivative
Circle Point Picking (modified)
Complete Tree (modified)
Composition (modified)
Condition Number (modified)
Congruence (modified)
Distribution Function (modified)
Divisor Function (modified)
Dodecicosahedral Graph (modified)
Empty Graph (modified)
Fractional Derivative (modified)
Fractional Map
Fractional-Order Map
Fractional q-Calculus
Function Composition (modified)
Graph (modified)
Great Dirhombicosidodecahedral Graph (modified)
Greatest Common Divisor (modified)
Great Snub Dodecicosidodecahedral Graph (modified)
Hilbert's Problems (modified)
Infimum (modified)
Knot (modified)
Least Common Multiple (modified)
Lg (modified)
Mathematics Prizes (modified)
Millennium Prize Problems
No-Three-in-a-Line Problem (modified)
Ordinal Number (modified)
Palindromic Number (modified)
Path Graph (modified)
Polyhedron (modified)
Polynomial Roots (modified)
(p,q)-Binomial Coefficient
(p,q)-Calculus
Probability Density Function (modified)
q-Fractional Calculus
Riemann-Liouville Derivative
Riemann-Liouville Fractional Derivative
Riemann Zeta Function Zeros (modified)
Riffle Shuffle (modified)
Sigmoid Function (modified)
Smale's Problems (modified)
Spheroidal Wave Function (modified)
Student's t-Distribution (modified)
Unsolved Problems (modified)
Weighted Graph (modified)

Monday July 20, 2026

Sunday July 19, 2026

Saturday July 18, 2026

Chang Graphs (modified)
Distance Matrix (modified)
Hamilton Decomposable Graph
Hamilton Decomposition (modified)
Incident (modified)
Isolated Point (modified)
Isolated Vertex (modified)
MDS
Multidimensional Scaling
Nonisomorphic (modified)
Odd Graph (modified)
Transposition Graph (modified)

Friday July 17, 2026

Thursday July 16, 2026

Wednesday July 15, 2026

Extreme Value Theory
Fisher-Tippett-Gnedenko Theorem
Fréchet Distribution
Haemers Number (modified)
Minimum Rank (modified)
Noncentral Chi-Squared Distribution (modified)
Platypus Graph (modified)

Tuesday July 14, 2026

Ball Packing
Bell Number (modified)
Partition (modified)
Queue Number
Stirling Number of the Second Kind (modified)
Twelvefold Way
Vertex Transmission (modified)
Zero Forcing Number (modified)
Zero Forcing Set

Monday July 13, 2026

Sunday July 12, 2026

Graph Bandwidth (modified)
Hexagonal Number (modified)

Saturday July 11, 2026

Cycle Double Cover (modified)
Cycle Double Cover Conjecture (modified)
Laman Number (modified)
Mittag-Leffler Function (modified)

Friday July 10, 2026

Thursday July 9, 2026

Laman Graph (modified)
Laman Number

Tuesday July 7, 2026

Catenoid (modified)
Computer Algebra (modified)
Conoid (modified)
Developable Surface (modified)
Differential Algebra (modified)
Elementary Function (modified)
Helicoid (modified)
Indefinite Integral (modified)
Minimal Surface (modified)
Risch Algorithm (modified)
Schwarz's Minimal Surface (modified)
Symbolic Integration

Monday July 6, 2026

Sunday July 5, 2026

Saturday July 4, 2026

Graph Genus (modified)
Singlecross Graph (modified)
Toroidal Graph (modified)

Friday July 3, 2026

Assembly Number (modified)
No-Three-in-a-Line Problem (modified)

Thursday July 2, 2026

Double-Toroidal Graph (modified)
Elliptic Integral (modified)
Graph Genus (modified)
Pretzel Graph (modified)
Pseudo-Elliptic Integral
Risch Algorithm (modified)
Toroidal Graph (modified)

Wednesday July 1, 2026

Antiprism Graph (modified)
Graph Square (modified)
Square Graph (modified)

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