Web page by Michael Behrend
In collections: Geometry, Probability and statistics
The Instructor's Guide to Real Induction
Article by Pete L. Clark
In collections: About proof, Easily explained, Fun maths facts, The act of doing maths
We introduce real induction, a proof technique analogous to mathematical induction but applicable to statements indexed by an interval on the real line. More...
Yet Another Single Law for Lattices
Article by William McCune and Ranganathan Padmanabhan and Robert Veroff
In collections: Attention-grabbing titles, Fun maths facts
In this note we show that the equational theory of all lattices is defined by a single absorption law. The identity of length 29 with 8 variables is...
Codes, Lower Bounds, and Phase Transitions in the Symmetric Rendezvous Problem
Article by Varsha Dani and Thomas P. Hayes and Cristopher Moore and Alexander Russell
In collections: Easily explained, Protocols and strategies
In the rendezvous problem, two parties with different...
Historical methods for multiplication
Article by Bjørn Smestad and Konstantinos Nikolantonakis
In collections: Notation and conventions, History, Easily explained, Integerology
This paper summarizes the contents of our workshop. In this workshop, we presented and discussed the "Greek" multiplication, given by...
Hunting Rabbits on the Hypercube
Article by Jessalyn Bolkema and Corbin Groothuis
In collections: Attention-grabbing titles, Easily explained, Protocols and strategies, Animals, Food
We explore the Hunters and Rabbits game on the hypercube. In the process, we find the solution for all classes of graphs with an isoperimetric...
Geometric Mechanics of Curved Crease Origami
Article by Marcelo A. Dias and Levi H. Dudte and L. Mahadevan and Christian D. Santangelo
In collections: Art, Basically physics, Things to make and do, Geometry
Folding a sheet of paper along a curve can lead to structures seen in decorative art and utilitarian packing boxes....
Sloane's Gap: Do Mathematical and Social Factors Explain the Distribution of Numbers in the OEIS?
Article by Gauvrit, Nicolas and Delahaye, Jean-Paul and Zenil, Hector
In collections: Easily explained, Probability and statistics, The act of doing maths, Integerology
The Online Encyclopedia of Integer Sequences (OEIS) is made up of thousands of...
The effective content of Reverse Nonstandard Mathematics and the nonstandard content of effective Reverse Mathematics
Article by Sanders, Sam
In collections: Attention-grabbing titles, About proof
The aim of this paper is to highlight a hitherto unknown computational aspect of Nonstandard Analysis pertaining to Reverse Mathematics (RM). In particular,...
Testing Petri Nets for Mobile Robots Using Gröbner Bases
Article by Chandler, Angie and Heyworth, Anne and Blair, Lynne and Seward, Derek
In collection: Basically computer science
Cryptographic Protocols with Everyday Objects
Article by James Heather and Steve Schneider and Vanessa Teague
In collections: Easily explained, Protocols and strategies, Things to make and do
Most security protocols appearing in the literature make use of cryptographic primitives that assume that the...
Ovals and Egg Curves
Article by Jürgen Köller
In collections: Art, Things to make and do, Food, Geometry
\(H\)-supermagic labelings for firecrackers, banana trees and flowers
Article by Rachel Wulan Nirmalasari Wijaya and Andrea Semaničová-Feňovčíková and Joe Ryan and Thomas Kalinowski
In collections: Attention-grabbing titles, Basically computer science, Food
A simple graph \(G=(V,E)\) admits an...
Navigating Hyperbolic Space with Fibonacci Trees
Web page by moniker
In collections: Basically computer science, Geometry, Fibonaccinalia
What did Ryser Conjecture?
Article by Darcy Best and Ian M. Wanless
In collections: History, Drama!
Two prominent conjectures by Herbert J. Ryser have been falsely attributed to a somewhat obscure conference proceedings that he wrote in German. Here we provide a translation of that paper and try to correct the historical record at least...
Analysis of Casino Shelf Shuffling Machines
Article by Diaconis, Persi and Fulman, Jason and Holmes, Susan
In collections: Basically physics, Probability and statistics
Many casinos routinely use mechanical card shuffling machines. We were asked to evaluate a new product, a shelf shuffler. This leads to new probability, new combinatorics, and to some...
A Singular Mathematical Promenade
Article by Etienne Ghys
In collection: History
This is neither an elementary introduction to singularity theory nor a specialized treatise containing many new theorems. The purpose of this little book is to invite the reader on a mathematical promenade. We will pay a visit to Hipparchus, Newton and...
Enumeration of symmetry classes of convex polyominoes on the honeycomb lattice
Article by Gouyou-Beauchamps, Dominique and Leroux, Pierre
In collections: Geometry, Combinatorics
We enumerate the symmetry classes of convex polyominoes on the hexagonal (honeycomb) lattice. Here convexity is to be understood as convexity along the three main column...
Article by Pierre Cartier
In collections: Notation and conventions, The act of doing maths
My thesis is:there is another way of doing mathematics, equally successful, and the two methods should supplement each other and not fight.
On Buffon Machines and Numbers
Article by Flajolet, Philippe
In collections: Easily explained, Probability and statistics
The well-know needle experiment of Buffon can be regarded as an analog (i.e., continuous) device that stochastically "computes" the number 2/pi ~ 0.63661, which is the experiment's probability of success. Generalizing the experiment...
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
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