By Jan Egesborg
Fermats sidste sætning
Fermat’s last theorem
By Jan Egesborg, Pia Bertelsen and Johannes Töws
For hundreds of years, the world’s brightest and most twisted minds struggled to answer one of maths’ most mischievous riddles: “Fermat’s Last Theorem”.
In fact, 357 years passed between Fermat’s theorem and a mathematician’s breakthrough. It wasn’t until 1993 that British mathematician Andrew Wiles managed to complete a proof.
‘Fermat’s Last Theorem’ is the first book for children and the young at heart about and explaining the famous proof.
Publisher Denmark: Alvilda in 2016
Primtalstvillinger
Prime number twins
Die Primzahlzwillinge
By Jan Egesborg, Pia Bertelsen and Johannes Töws
Mr. Frog is smart and he likes puzzles. But the two turtles’ math question about the twin prime numbers is so tricky that Mr. Frog has to take a nap, completely exhausted. But even in his sleep, the fascinating prime number twins don’t let go of him and Mr. Frog experiences exciting number adventures before the turtles help him solve the puzzle.
A fun math puzzle book for young and old.
Publisher Denmark: Alvilda in 2016
Publisher Germany: Alibri Verlag GmbH in 2018
Selected reviews:
Scientific American:
Prime Number Puzzle Has Stumped Mathematicians for More Than a Century
While I was looking for a gift for a child’s birthday, a math book fell into my hands. I am always fascinated when authors write about abstract scientific topics for children, whether it’s on Albert Einstein’s theories, the life of Marie Curie, technology or space travel. But this particular book was different. It’s all about prime numbers—specifically twin primes. Danish author Jan Egesborg has endeavored to introduce children to one of the most stubborn open problems in number theory, which even the brightest minds have repeatedly failed to solve
over the past 100-plus years: the twin prime conjecture.
By Manon Bischoff a theoretical physicist and editor at Spektrum, a partner publication of Scientific American.
ResearchGate:
Mr. Frog challenged by Fermat’s last theorem
Without even mentioning Fermat’s last theorem, the book’s application of mathematical formulations, considerations and methods to a non-mathematical problem as well as the implicit example (Fermat) of the historical development of mathematics displays the nature and characteristics of mathematics as a discipline. Thereby the book has the potential of developing children’s mathematical overview and judgment.
By Maria Kirstine Østergaard, Anna Karlskov Skyggebjerg, Uffe Thomas Jankvist from Aarhus University Department of Education
Ingeniøren:
Mr. Frog makes a new mathematical discovery
I don’t remember a second children’s book getting me to study number theory in the same way. It must be an obvious Christmas present, if not for the children then for parents or grandparents interested in numbers.
By Jens Ramskov Science editor at the journal Ingeniøren
Other children books on math and physics by the author:
Finn Foton and electromagnetism
Finn Foton and the Ocean Climate Battle
Finn Foton and the corona vaccine
Finn Foton and the quantum computer
Finn Foton and the transformations
Published in Denmark by Polyteknisk Forlag and Forlaget Fahrenheit
Published in Japan by Agne Gijusu Center
Contact:
Jan Egesborg, mobile 28356043, mail jan@nxtbrand.dk