Américo Tavares
Retired electrical engineer.
(Math’s enthusiast).

See “Sobre” page for further information in Portuguese.

 

Posts in English

 
A note on a combinatorial identity related to the Apéry’s constant

Problem of the Week #2 [from Walking Randomly Blog] – Submission

Congruences and Divisibility — A Purdue University Problem

My solution to the Problem Of the Week-9 [Todd and Vishal's blog]: Period of a decimal expansion

Problem of the Week #2 [from Walking Ran

Putnam problem of the day (by the HMD dated March 1, 2008)

 Apéry Numbers

Problem Of The Month #1

Problem of the month #1 (p-adic valuation). Solution

Problem Of  The Month #2

Problema of the month #2 (Binomial series coefficients). Solution

A mortgage problem

Three gamma function identities

* * *

A few are available as a small notebook

  notebookproblemasteoremasjune2009 

and The Problems of the Month as a bilingual edition

  problemas|teoremas Problemas do mês :: Problems of the month, September 10, 2009

But most are in Portuguese here as a pdf notebook.

Caderno de problemas|teoremas, edição de 6 de Junho de 2009

(131 pages)

 

Caderno do problemas|teoremas, edição de 6.6.09

or here  sebenta

(total: 184 pages)

 Last update of this page: Septembre 12, 2009
Américo Tavares