# American Mathematical Society

# Free William Lowell Putnam comp training

# Wisdom of V. I. Arnold, immortal Russian mathematician

Development of mathematics resembles a fast revolution of a wheel: sprinkles of water are flying in all directions. Fashion — it is the stream that leaves the main trajectory in the tangential direction. These streams of epigone works attract most attention, and they constitute the main mass, but they inevitably disappear after a while because they parted with the wheel. To remain on the wheel, one must apply the effort in the direction perpendicular to the main stream.

V I Arnold, translated from “Arnold in His Own words,” interview with the mathematician originally published in Kvant Magazine, 1990, and republished in the Notices of the American Mathematical Society, 2012.

# PROMYS: Boston; Program in Mathematics for Young Scientists

For promising Indian students, the Mehta Scholarships are also available.

— Shared by Nalin Pithwa for spreading awareness of math in India also…

# In bubbles, she sees a mathematical universe: Abel Laureate, Prof Karen Uhlenbeck

I was just skimming the biography “A Beautiful Mind” by Sylvia Nasar, about the life of mathematical genius, John Nash, Economics Nobel Laureate (and later Abel Laureate)…

Some math wisdom came to my mind: Good mathematicians look for analogies between theorems but the very best of them look for analogies within analogies; I was reading the following from the biography of John Nash: …It was the great HUngarian-born polymath John von Neumann who first recognized that social behaviour could be analyzed as games. Von Neumann’s 1928 article on parlour games was the first successful attempt to derive logical and mathematical rules about rivalries. Just as Blake saw the universe in a grain of sand, great scientists have often looked for clues to vast and complex problems in the small, familiar phenomena of daily life. Isaac Newton reached insights about the heavens by juggling wooden balls. Einstein contemplated a boat paddling upriver. Von Neumann pondered the game of poker.

And, read how first woman Abel Laureate, genius mathematician Prof Karen Uhlenbeck sees a mathematical universe in bubbles…

Hats off to Prof Karen Uhlenbeck and NY Times author, Siobhan Roberts!!

# Career choice: Football or Math ? Read about ex-NFL player John Urshcel

# Math Moments: uses of math in every day life

# AMS Menger Awards 2018

*(shared from the AMS website for motivational purposes)*

The AMS presented the Karl Menger Memorial Awards at the 2018 Intel International Science and Engineering Fair (Intel ISEF), May 13-18, 2018 in Pittsburgh, PA. The First Place Award of US$2000 was given to **Ryusei Sakai**, **Sota Kojima**, and **Yuta Yokohama**, Shiga Prefectural Hikone Higashi High School, Japan, for “Extension of Soddy’s Hexlet: Number of Spheres Generated by Nested Hexlets.” *[Photo: *bottom row (left to right): Dr. Keith Conrad (committee chair), Rachana Madhukara, Yuta Yokohama, Sota Kojima, Ryusei Sakai; top row (left to right): Chavdar Lalov, Gianfranco Cortes-Arroyo, Gopal Goel, Savelii Novikov, Boris Baranov. Not pictured: Muhammad Abdulla. Photo by the Society for Science & the Public.]

The Menger Awards Committee also presented the following awards:

*Second Award of $1,000*:**Gopal Krishna Goel**(Krishna Homeschool, OR), “Discrete Derivatives of Random Matrix Models and the Gaussian Free Field” and**Rachana Madhukara**, Canyon Crest Academy, CA, “Asymptotics of Character Sums”*Third Award of $500*:**Chavdar Tsvetanov Lalov**, Geo Milev High School of Mathematics, Bulgaria, “Generating Functions of the Free Generators of Some Submagmas of the Free Omega Magma and Planar Trees”;**Gianfranco Cortes-Arroyo**, West Port High School, FL,*“*Generalized Persistence Parameters for Analyzing Stratified Pseudomanifolds”;**Muhammad Ugur Oglu Abdulla**, West Shore Junior/Senior High School, FL, “A Fine Classification of Second Minimal Odd Orbits”;**Boris Borisovich Baranov**and**Savelii Novikov**, School 564, St. Petersburg, Russian Federation, “On Two Letter Identities in Lie Rings”- Certificate of Honorable Mention:
**Dmitrii Mikhailovskii**, School 564, St. Petersburg, Russian Federation, “New Explicit Solution to the N-Queens Problem and the Millennium Problem”;**Chi-Lung Chiang**and**Kai Wang**, The Affiliated Senior High School of National Taiwan Normal University, Chinese Taipei, “’Equal Powers Turn Out’ – Conics, Quadrics, and Beyond”;**Kayson Taka Hansen**, Twin Falls High School, ID, “From Lucas Sequences to Lucas Groups”;**Gustavo Xavier Santiago-Reyes**and**Omar Alejandro Santiago-Reyes**, Escuela Secundaria Especializada en Ciencias, Matematicas y Tecnología, Puerto Rico, “Mathematics of Gene Regulation: Control Theory for Ternary Monomial Dynamical Systems”;**Karthik Yegnesh**, Methacton High School, PA, “Braid Groups on Triangulated Surfaces and Singular Homology”

A booklet on Karl Menger was also given to each winner. This is the 28th year of the presentation of the Karl Menger Memorial Awards. The Society’s participation in the Intel ISEF is supported in part by income from the Karl Menger Fund, which was established by the family of the late Karl Menger. For more information about this program or to make contributions to this fund, contact the AMS Development Office.

*Cheers to the winners,*

Nalin Pithwa.

# Another special number(s): Wilson primes and playful programming!

**Problem:**

A prime number p is called a **Wilson prime*** if *. Using a computer and some programming language like C, C++, or Python find the three smallest Wilson primes.

*Cheers,*

Nalin Pithwa.

# A Special Number

**Problem:**

Show that for each positive integer n equal to twice a triangular number, the corresponding expression represents an integer.

**Solution:**

Let n be such an integer, then there exists a positive integer m such that . We then have so that we have successively

; ; and so on. It follows that

, as required.

*Comment: you have to be a bit aware of properties of triangular numbers.*

**Reference:**

1001 Problems in Classical Number Theory by Jean-Marie De Koninck and Armel Mercier, AMS (American Mathematical Society), Indian Edition:

Amazon India link:

Cheers,

Nalin Pithwa.