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Permutations, group theory, discrete calculus, integer sequences, combinatorial optimization...

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First ever position index formula

CONTRIBUTED BY: Luis Felipe Massena Misiec | 6 days ago BY: Luis Felipe Massena Misiec
Discrete Mathematics , Graphics and Visualization , Mathematics , ...
1
REPLIES
107
VIEWS

Rule 30 exact binomial-Lucas lifting: boolean logic to integer coefficients, Stirling & support sets

CONTRIBUTED BY: Tigran Nersissian | 7 days ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Computational Systems , ...
2
REPLIES
225
VIEWS

Hidden symmetry in permutation space

CONTRIBUTED BY: David Vasholz | 23 days ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
3
REPLIES
295
VIEWS

From integers to art: fractal geometry of digit-sum parities

CONTRIBUTED BY: Sergio Quiroga | 27 days ago BY: Sergio Quiroga
Staff Picks , Discrete Mathematics , Geometry , ...
2
REPLIES
329
VIEWS

Extended Rule-110 family via ANF over GF(2): prior art and validation of a factor onto Rule 110

QUESTION FROM: Tigran Nersissian | 1 month ago
Algebra , Computational Systems , Discrete Mathematics , ...
0
REPLIES
177
VIEWS

MGroups package: teaching finite group theory

CONTRIBUTED BY: Naman T. | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , Education , ...
1
REPLIES
403
VIEWS

How to solve tectonic puzzles using graph theory

CONTRIBUTED BY: Alejandra Ortiz Duran | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Computer Science , Discrete Mathematics , ...
2
REPLIES
787
VIEWS

Patchwork with coexisting cellular automata

CONTRIBUTED BY: Phileas Dazeley-Gaist | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Computational Systems , Discrete Mathematics , ...
1
REPLIES
435
VIEWS

Companion to "Base Fibonacci - Numberphile"

CONTRIBUTED BY: Shenghui Yang | 2 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
1
REPLIES
483
VIEWS

Visual explanation of the problem Putnam 2025 A3

CONTRIBUTED BY: Shenghui Yang | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Discrete Mathematics , Game Development , ...
1
REPLIES
1K
VIEWS

Maze making using graphs based on rectangular and hexagonal grids

CONTRIBUTED BY: Anton Antonov | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Challenges , Computational Humanities , ...
1
REPLIES
888
VIEWS

Numerically 2026 is unremarkable yet happy: semiprime with primitive roots

CONTRIBUTED BY: Anton Antonov | 1 month ago BY: Srinivasa Raghava
Staff Picks , Algebra , Discrete Mathematics , ...
7
REPLIES
3.3K
VIEWS

Introduction to dynamic economic models: the ISLM model with the capital stock and debt

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
1
REPLIES
594
VIEWS

Introduction to dynamic economic models: The ISLM model

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Calculus , Discrete Mathematics , Economics , ...
1
REPLIES
831
VIEWS

Introduction to dynamic economic models: Keynes's AD model with the capital stock and the debt

CONTRIBUTED BY: Hee-Young Shin | 3 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Calculus , Discrete Mathematics , Economics , ...
1
REPLIES
571
VIEWS

[Polihacks] The sons of Bill Gates: lognormal simulation cellular model

CONTRIBUTED BY: Adael Reyes | 4 months ago
Computational Systems , Discrete Mathematics , Mathematics , ...
0
REPLIES
502
VIEWS

Random minimum spanning trees and Riemann Zeta function

CONTRIBUTED BY: Shenghui Yang | 4 months ago BY: EDITORIAL BOARD
Staff Picks , Curated Data , Discrete Mathematics , ...
1
REPLIES
898
VIEWS

Verifying origin/meaning of rule 54 formula on MathWorld

QUESTION FROM: Rudi Bjørnsen Stranden | 5 months ago
Computational Systems , Discrete Mathematics , Wolfram Science
0
REPLIES
510
VIEWS

Recamán's sequence, semi circles and spooky sound

CONTRIBUTED BY: Shenghui Yang | 5 months ago BY: Vitaliy Kaurov
Staff Picks , Audio, Sound and Music , Discrete Mathematics , ...
2
REPLIES
1.1K
VIEWS

Exploring moduli of dyadically resolved trinomials

CONTRIBUTED BY: Shenghui Yang | 6 months ago BY: EDITORIAL BOARD
Staff Picks , Algebra , Discrete Mathematics , ...
1
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1.4K
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