Gonit Sora

CMI Interview

Experiences in an interview at CMI

11.45 am. 19th June, 2012. I was standing outside the door of room no. 5. My heart bit was running like mail express. I was trying make myself cool and comfortable but I was unable to do so. I knew it no matter how much struggle I do to

Bruce C. Berndt

The Legacy of Srinivasa Ramanujan

Srinivasa Ramanujan was an Indian mathematical genius born exactly 125 years ago on 22nd of December in 1887 in a little known place in India named Erode. The story of Ramanujan is well known to every student of mathematics in particular and science in general. He is India’s greatest

Chocolate Problem

Facebook Chocolate Problem

“COWARDS DIE MANY TIMES BEFORE THEIR DEATHS, THE VALIANTS NEVER TASTE OF DEATH BUT ONCE….” This has nothing to do with what I am going to talk about..!! But at least I could manage to get your attention!! Now how about the picture (problem??) below… This problem has been making

Fractional calculus

Introduction to fractional derivatives

Brief introduction:- In mathematical study, research and development means the extension of previous mathematical methods and definitions. For instance extension of real numbers to complex numbers, extension of factorials to gamma functions etc. Fractional calculus is the field of mathematics which deals with the study of integrals and derivatives

Ada Lovelace

Ada Lovelace

Augusta Ada King, Countess of Lovelace (10 December 1815 – 27 November 1852), born Augusta Ada Byron and now commonly known as Ada Lovelace, was an English mathematician and writer chiefly known for her work on Charles Babbage’s early mechanical general-purpose computer, the Analytical Engine. Her notes on the engine

IMO

A score and a dozen : A collection of math problems

We present a problem collection with solutions for mathematical Olympiads, specially the Regional Mathematical Olympiad (RMO) and the Indian National Matjhematical Olympiad (INMO). The problems have been compiled by Bishal Deb from Salt Brook Academy, Dibrugarh. The set can be downloaded in pdf format here.

bijective

The number of functions

1) A={a, b, c, d, e} and B={x, y, z}. Then the number of surjections that can be defined from the set A to the set B is (সংহতি A = {a, b, c, d, e} ৰ পৰা সংহতি B = {x, y, z} লৈ পাব পৰা

next term

What number should come next

“ANY number can be the next term in the usually given set of terms. […] Theoretically there are many possibilities. So some understanding is essentially either implied or needed in connection with the question: What is the Next Term?” – Prof. R. C. Gupta. (“On Finding the Next Term”.)   Find the next

Astrophysics

The Kavli Prize

The Kavli Prize is one of the highly respected prizes in science in the 21st century. It recognises scientists for their seminal advances in three research areas: Astrophysics, nanoscience and neuroscience. Consisting of a scroll, a gold medal and a cash award of 1 million $, a prize in each of

Brahmagupta

The Vocabulary of Mathematical Analysis

1. Introduction The English word “vocabulary” refers to the “list of words” used in communicating one’s thought (or knowledge) to the others, and the English word “analysis” refers to the “resolution into simple elements”. Hence, according to the English dictionary, the “vocabulary of analysis” should refer to the list

Chaos

On Chaos in Dynamical Systems

It is well-known that in Newtonian dynamics, motion is controlled by certain differential equations along with certain initial conditions. The problem is formulated in such a manner that it becomes deterministic i.e. given the initial condition the subsequent motion is predictable i.e. there is one-one connection between time

2012

SASTRA Ramanujan Prize 2012

The SASTRA Ramanujan Prize, founded by Shanmugha Arts, Science, Technology & Research Academy (SASTRA) University in Kumbakonam, India, Srinivasa Ramanujan’s hometown, is awarded every year to a young mathematician judged to have done outstanding work in Ramanujan’s fields of interest. The age limit for the prize has been set

General Theory of Relativity

Five great ‘Unsolved’ problems in Theoretical Physics

Theoretical Physics, considered one of the most thrilling, exciting and pain staking branches in all of sciences, deals with explaining the mysteries of the universe in the beautiful complexities of mathematics as it has been the language of physicists from time immemorial. The brilliant minds deeply immersed in this field

Fields' Medal

William P. Thurston, Theoretical Mathematician, Dies at 65

William P. Thurston, a mathematician who revolutionized understanding of the structure of three-dimensional spaces and won the Fields Medal, often described as the equivalent of the Nobel Prize for mathematics, died on Tuesday in Rochester. He was 65. Thurston’s geometrization conjecture states that compact 3-manifolds can be decomposed canonically

The Flower Puzzle

The Flower Puzzle Generalized

This article is a crazy generalization of the Flower puzzle by Ankush Goswami published in Gonit Sora on 12th July 2012. We now suppose that instead of three there are $$m$$ temples $$A_{1}, A_{2},dots ,A_{m }$$ and instead of doubling, the flowers increase $$n$$ times in number

Ramanujan

ৰামানুজন - গণিতজ্ঞ আৰু মানুহজন

মূল : এছ. ৰংগনাথন মুকলি অনুবাদ : খনীন চৌধুৰী প্ৰকাশক : অসম গণিত শিক্ষায়তন। প্ৰথম প্ৰকাশ : ১৭ জুলাই, ২০১১ সূচীপত্ৰ   অধ্যায় A –  ৰামানুজন- গণিতজ্ঞ আৰু

Calculus

Some Math Jokes and Quotes

“Since the mathematicians have invaded the theory of relativity, I do not understand it myself any more.” — Albert Einstein “Only professional mathematicians learn anything from proofs. Other people learn from explanations.” — Ralph Boas “An engineer thinks that his equations are an approximation to reality. A physicist thinks reality is an

Books. Classics

How to Solve It - G. Polya

How to Solve It, by the famous mathematician G. Polya is a classic math book. We present below some of the excerpts from that book. PART I. IN THE CLASS ROOM PURPOSE 1. Helping the student. One of the most important tasks of the teacher is to help his students.

applied mathematics

প্ৰায়োগিক আৰু মৌলিক গণিতৰ বিৰোধ - এটি আলোচনা

গণিতক বিজ্ঞানৰ ৰাণী বুলিয়েই কওঁ। সেয়ে বিজ্ঞানৰ অইন শাখাসমূহৰ স’তে ইয়াক সম্পৰ্কত আভিজাত্য বজাই ৰখাই শ্ৰেয়। গণিতৰ মৰ্যাদা ক্ষুণ্

ৰাধিকাৰাম ঢেঁকিয়াল ফুকন

ৰাধিকাৰাম ঢেঁকিয়াল ফুকন

সাম্ৰাজ্যবাদী ব্ৰিটিছ সকলে অসম অধিকাৰ কৰাৰে পৰা অসমত শিক্ষাৰ এক নতুন ঢৌ প্ৰবাহিত হৈছিল। অসমৰ ডিব্ৰুগড় আৰু গুৱাহাটীত বিদ্যালয় স্

103 Mathematical Constants

Some Favourite Mathematical Constants

Mathematical constant are really exciting and wonderful in the world of numbers. All numbers are not created equal; that certain constants appear at all and then echo throughout mathematics, in seemingly independent ways, is a source of fascination. Just as physical constants provide “boundary conditions” for the physical universe, mathematical

Clay Prize

Navier-Stokes equation

This is an equation which describes the motion of an incompressible fluid and is given by 1. ∂∂t ui + j=13uj∂ui∂xj = ν Δ ui – ∂p∂xi + fi (x,t) x  R3, t ≥ 0, 1 ≤ i ≤ 3 2. div u = j=13∂uj∂xj = 0 x  R 3 t

Birch and Swinnerton Dyer Conjecture

Birch Swinnerton-Dyer conjecture

This is a conjecture regarding the number of rational points in elliptic curves i.e. curves in two-dimensional plane with the equation y2 = x3 + a x + b  for some whole numbers a,b. In the early 1960’s, the British mathematicians Brian Birch and Peter Swinnerton-Dyer started to use computers

Abel Prize

Interview with Srinivasa Varadhan

Srinivasa Varadhan, known also as Raghu to friends, was born in Chennai (previously Madras) in 1940. He completed his PhD in 1963 in the Indian Statistical Institute (ISI), Calcutta, and has been in Courant Institute of Mathematical Sciences since 1963. An internationally renowned probabilist, he was awarded the Abel Prize

Puzzles

The Flower Puzzle

Consider the following puzzle: There are three temples say A, B and C. A priest takes with him some flowers and visits A. The flowers instantly double itself, and the priest keeps some of those flowers in A and proceeds towards B. At B also the same thing happens, the