 Snapshots of modern mathematics
 Pierre de Fermat and Andrew Wiles in Czech Republic stamps
 Stefan Banach (March 30, 1892 – August 8, 1945)
 Guessing the Numbers
 What is mathematics for Ehrhard Behrends
 What is mathematics for Krzysztof Ciesielski
 The Three Ducks Trick
 What is mathematics for Franka Brueckler
All posts by Gianluigi Filippelli

Seven cosmic messengers
Let us suppose we travel from Earth to the furthest observable point in the universe. We have seven satellites on our spacecraft, used to keep communications between us and the Earth. Let’s suppose that the speed of...
 Posted October 10, 2020

A game of free will
Sometimes I wish I hadn’t invented that game. – John Horton Conway about the Game of life The most famous mathematical invention by John Conway was undoubtedly the Game of life, that was popolirized by Martin...
 Posted April 12, 2020

The ultimate question
If you are a reader of the Hitchhiker’s guide to the galaxy, you probably know that 42 is the answer to the Ultimate Question of Life, the Universe, and Everything. The choice of the number by Douglas...
 Posted November 30, 2019

Lunar Arithmetic
One of the most popular expressions in Italy for giving strength to numbers is mathematics is not an opinion. The expression is exclusively Italian and mathematicians don’t agree with this opinion, since they have fun inventing a large number of different...
 Posted September 20, 2019

Turing, Fibonacci and the sunflowers
Article previously published on Doc Madhattn. June 23, 2017: Happy Alan Turing 105th Birthday! One of the last Alan Turing‘s work is about Fibonacci numbers in nature: One of a number of problems was trying...
 Posted June 23, 2017

The Maxwell’s equations, the Beatles and the differential geometry
The following video is a song about Maxwell’s equations. Lyrics are written by David Olson with the basis of Let it be by Beatles. Enjoy! Interestingly, Maxwell’s equations have been drastically reduced into a language of differential...
 Posted June 17, 2017

A solution to a maximal independent set problem
Article previosly published on Doc Madhattan. A distributed system is a set of autonomous computer that comunicate in a network in order to reach a certain goal. So a maximal independent set (MIS) is a distributed system’s...
 Posted June 11, 2017

Some updates about Riemann hypothesis
The following article is an updated version of a post previously published on DocMadhattan. The Rieman hypothesis was stated following the 1859 Riemann’s paper On the Number of Primes Less Than a Given Magnitude. This is the...
 Posted April 30, 2017

Pi day 2017: fun and facts
This article was partially published on DocMadhattan As you know, the $\pi$ is defined as the ratio of the circumference to its diameter. This number, which is transcendental, was, apparently, known since ancient times. There are, in...
 Posted March 14, 2017

Neural network and astronomy
The following article was previously published on DocMadhattan. There is also an Italian version published on MaddMaths! Neural network is one of the most powered method to analize data. It can be use in most research...
 Posted February 28, 2017