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Kannappan Sampath
Attends Queen's University
Lives in Kingston, ON
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Kannappan Sampath

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This is for general audience Peter Keevash's work on designs... 
 
"Design theory may even have been used by betting cartels that made millions of dollars off of Massachusetts’ poorly designed Cash WinFall lottery between 2005 and 2011. That lottery involved choosing six numbers out of 46 choices; tickets won a jackpot if they matched all six numbers, and smaller prizes if they matched five out of six numbers.

There are more than 9 million possible ways to pick six numbers out of 46, so buying tickets with every possible combination would cost far more than the game’s typical jackpot. A number of groups realized, however, that buying hundreds of thousands of tickets would enable them to turn a profit by scooping up many of the smaller prizes. Arguably the best assortment of tickets for such a strategy is a (46, 6, 5) design, which creates tickets of six numbers such that every set of five numbers appears exactly once, guaranteeing either the jackpot or every possible five-number prize.

No one has found a (46, 6, 5) design so far, Colbourn said, but designs exist that are close enough to be useful. Did any of the betting cartels use such a design “to siphon money from the Lottery at no risk to themselves?” wrote Jordan Ellenberg, a mathematician at the University of Wisconsin, Madison, who discussed the Cash WinFall lottery in his book How Not to Be Wrong. If they didn’t, Ellenberg wrote, they probably should have. [...]"

Links in the comments!
A 150-year-old conundrum about how to group people has been solved, but many puzzles remain.
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Kannappan Sampath

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For the last year and a half, I have been working on a book, to be published by Johns Hopkins University Press. It will be a popular mathematics book, hopefully accessible to everyone. The twist is that whenever it makes sense, figures in the book will be photos of 3D prints that readers can download and print for themselves, buy online, or rotate around on screen.
The book will hopefully be out around September 2016. If you'd like a sneak peek, the work-in-progress website for the book (thanks +Jared Shay for helping me with it!) is at: http://3dprintmath.com
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Dear Emacs friends: 

Recently, for some reason unbeknownst to me, every evaluation of the keybinding C-c C-v on my TeX + AUCTex buffer freezes my aquamacs and what is more, after sometime, aquamacs revives itself. 

I have no idea how to gauge what the problem. 

So, any help/pointers towards collecting some preliminary data useful for diagnosis would be very welcome. 

Sincerely, 
An Emacs User whose productivity has taken a hit: 100 key strokes and 5 minutes of time spent watching the rainbow wheel go round and round.
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Have you tried profiling?
Have you tried emacs -Q?
Have you tried top?
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Kannappan Sampath

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I know I have circled many mathematicians. So, let us see how this goes: 

Do you use the laplace's method, saddle point method or the method of stationary phase in your research or teach these in a course? If so, do you have a reference that you personally like? 

I would appreciate any response. Thanks.
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I hope u mean the method of solving diff eqn using laplace transform, i remember doing such things in my UG and simmons(Diff Eqns with applications) was a good reference, though not very elaborate
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Kannappan Sampath

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WriteLaTeX is now Overleaf! And, here is a journal template that was recently added to the gallery!
 
Great new journal article manuscript template just submitted to +Overleaf 
This general template aims to serve as an advanced, feature-filled, place-holder template during the drafting and submission process. It is a general academi...
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Math can be funny! Check out Riot at the Calc Exam and Other Mathematically Bent Stories by Colin Adams. It makes a great holiday gift! One reviewer says that Adams is “one of the funniest mathematicians I have ever met.” http://bit.ly/1yQp6Dr
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Kannappan Sampath

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Patrick Ulrich originally shared to Bitcoin:
 
NYSE launches a bitcoin price index

The New York Stock Exchange (NYSE) has today announced the launch of a bitcoin price index (NYXBT).

NYXBT will represent the daily US dollar value of one bitcoin at 4pm (BST) and will be published on the NYSE Global Index Feed (GIF).

To the moon!
The New York Stock Exchange (NYSE) has announced the launch of a bitcoin price index (NYXBT).
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Kannappan Sampath

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This is a fun project by one of my colleagues +Daniel Rockmore. The original gallery is a collection of ten aquatints produced from the contributions of ten mathematicians and physicists in response to the prompt to transcribe their "most beautiful mathematical expression." Now there is a studio where you can share your own responses!

http://www.concinnitasproject.org/
Concinnitas is the title of a portfolio of fine art prints, published by Bob Feldman of Parasol Press in collaboration with the Yale University Art Gallery and Bernard Jacobson Gallery and curated by Dan Rockmore; executed by the fine print printshop Harlan & Weaver, Inc. It is a collection of ...
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Kannappan Sampath

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“He’s like a modern-day Einstein,” says Frenkel, author of "Love and Math," a book about the Langlands Program. “But everybody knows about Einstein and nobody knows about Langlands. Why is that?”

A major profile of Robert Langlands and the Langlands Program in The Toronto Star, which not only exposes the ideas involved but emphasizes the "human element." Making discoveries in math is a creative pursuit very much like that of a poet or an artist.
Canadian Robert Langlands is 'like a modern-day Einstein,' who has devoted his life to the limits of pure mathematics
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This is fabulous. Although, one day...
 
A song about Grothendieck

There are many songs in the world about love and loss, heartbreak and heart-ache. There are altogether fewer about algebraic geometry in the style of Alexander Grothendieck. Here is my attempt to fill that gap.

The lyrics and other details are available on my website:
http://richardelwes.co.uk/2015/01/02/the-grothendieck-song/
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Kannappan Sampath

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Excited, Excited! SMC is now open source.

See William Stein's post: https://groups.google.com/forum/#!msg/sage-cloud/SFOB9y63A7Q/8HCHG2y7D7sJ
Hi, SageMathCloud is now completely open source. The complete source code is here, so if you've ever wondered how something in SMC works, you can now find out... https://github.com/sagemath/cloud. There is also a new developer mailing list: ...
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This picture is definitely worth a thousand words.
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Education
  • Queen's University
    Mathematics, present
  • Indian Statistical Institute
    Mathematics, 2011 - 2014
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Gender
Male
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Interested to learn the intricacies of Mathematics and enjoy its Beauty
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Kingston, ON
Previously
Bangalore - Trichy - Chennai
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