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Train Tracks

Our Train Track Paper

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An article about our paper

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Translations

Solutio Problematis de Investigatione Trium Numerorum, Quorum tam Summa, Quam Productorum, nec non Summa Productorum ex Binis, Sint Numeri Quadrati (The Solution of a Problem of Searching for Three Numbers, of Which the Sum, Product, and the Sum of Their Products Taken Two at a Time, Are Square Numbers)

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De tribus numeris quadratis, quorum tam summa quam summa productorum ex binis sit quadratum (On three square numbers, of which the sum and the sum of products two apiece will be a square)

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Demonstratio theorematis Fermatiani omnem numerum primum formae 4n+1 esse summam duorum quadratorum (Proof of a theorem of Fermat that every number of the form 4n+1 can be given as the sum of two squares)

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Markov Partitions

Two-Rectangle Markov Partitions

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MAA Service Award

In 2018 I received the MAA Meritorious Service Award from the Wisconsin Section.