Start a hangout

## Profile

Kannappan Sampath

Attended Indian Statistical Institute

Lives in Ann Arbor, MI

77,259 views

AboutPostsPhotosVideosReviews

## Stream

### Kannappan Sampath

Shared publicly -Of potential interest!

Nominations for the Breakout Graduate Fellowship are now being accepted. Professional mathematicians are invited to nominate highly motivated and mathematically talented students from developing countries who plan to complete a doctoral degree in a developing country, including their own home country. Nominees must have a consistently good academic record from the high school level and must be seriously interested in pursuing a career of research and teaching in mathematics.

1

Add a comment...

### Kannappan Sampath

Shared publicly -Leech lattice, it is. Not that you did not know, but you didn't know the proof though ;)

Maryna Viazovska The news Maryna Viazovska solved the densest packing problem in dimension eight! Subsequently, Maryna Viazovska with Henry Cohn, Steve Miller, Abhinav Kumar, and Danilo Radchenko s…

7

Add a comment...

### Kannappan Sampath

Shared publicly -Here at Montreal participating in the Montreal-Toronto Number theory seminar: I learnt about rigid analytic geometry and some applications of non-archimedean uniformisation.

4

Add a comment...

### Kannappan Sampath

Shared publicly -James Stewart’s calculus text books made him very rich. He spent his fortune on Integral House, an award-winning architectural marvel inspired by calculus, which is now on sale after he died last year

7

Add a comment...

### Kannappan Sampath

Shared publicly -Recommended viewing.

http://www.birs.ca/events/2015/5-day-workshops/15w5052/videos/watch/201501151933-Wegert.html

(the stitched together zeta function picture I made is at the end)

(the stitched together zeta function picture I made is at the end)

1

Add a comment...

### Kannappan Sampath

Shared publicly -Prof Michael Artin receives National Medal of Science from the US government.

At about 9:50 mark in the video.

At about 9:50 mark in the video.

10

1

2 comments

Thanks for sharing this

Add a comment...

### Kannappan Sampath

Shared publicly -A new journal seen via Prof. Mark Sapir on Facebook:

"Journal of Combinatorial Algebra is devoted to publication of research articles of the highest level. Its domain is the rich and deep area of interplay between combinatorics and algebra. Its scope includes combinatorial aspects of group, semigroup and ring theory, representation theory, commutative algebra, algebraic geometry and dynamical systems. Exceptionally strong research papers from all parts of mathematics related to these fields are also welcome."

"Journal of Combinatorial Algebra is devoted to publication of research articles of the highest level. Its domain is the rich and deep area of interplay between combinatorics and algebra. Its scope includes combinatorial aspects of group, semigroup and ring theory, representation theory, commutative algebra, algebraic geometry and dynamical systems. Exceptionally strong research papers from all parts of mathematics related to these fields are also welcome."

Journal of Combinatorial Algebra European Mathematical Society. Editorial Board · Aims and Scope · Instructions for Authors.

6

2

Add a comment...

### Kannappan Sampath

Shared publicly -Excited that I will be back in India from May 23! I am off to ISI Bangalore for a month starting June 5!

6

Shyamala Harsha

+

1

2

1

2

1

We are happy to meet you at Trichy

Hope to spend some quality time

Harsha uncle

Hope to spend some quality time

Harsha uncle

Add a comment...

### Kannappan Sampath

Shared publicly -+Amritanshu Prasad When reading this, I could not help but think of you! I think this was one of the first things you made me understand...

https://qchu.wordpress.com/2015/11/06/double-cosets-are-relative-positions/

https://qchu.wordpress.com/2015/11/06/double-cosets-are-relative-positions/

4

2 comments

+David Butler, I think you'd like the ideas in this blog post.

Add a comment...

### Kannappan Sampath

Shared publicly -Dear Math Friends on G+:

This is unsettling and I am too embarrassed to post this on a Math forum like stack exchange or Mathoverflow.

I have been worried about the foundations of Category theory as needed for studying Algebraic Geometry and its applications to Number theory (yes, I do have things like Etale Cohomology in mind). I don't believe that universes as envisioned by Grothendieck and subsequently developed in detail by several people form the right foundation for this. This is because it leads to inaccessible cardinals and one can demonstrate that "their existence is consistent with ZFC" cannot be proven from ZFC.

However, it appears to me that from the point of view of the applications I have in mind that I must admit "some" proper classes in the universe of discourse along with ZFC. Is this right? Or is it true that one can work inside ZFC always (and deal only with small categories)?

(This may be naive, but someone can set me straight on this while we are at it: is it true that admitting a proper class amounts to admitting a strongly inaccessible cardinal?)

Thank you in advance.

In addition, I am ccing this to +David Roberts , Prof. +Chandan Dalawat , Prof. +Pierre-Yves Gaillard, Prof. +Amritanshu Prasad who all might have something to say about this. (Sorry if this comes across as a rude post.)

This is unsettling and I am too embarrassed to post this on a Math forum like stack exchange or Mathoverflow.

I have been worried about the foundations of Category theory as needed for studying Algebraic Geometry and its applications to Number theory (yes, I do have things like Etale Cohomology in mind). I don't believe that universes as envisioned by Grothendieck and subsequently developed in detail by several people form the right foundation for this. This is because it leads to inaccessible cardinals and one can demonstrate that "their existence is consistent with ZFC" cannot be proven from ZFC.

However, it appears to me that from the point of view of the applications I have in mind that I must admit "some" proper classes in the universe of discourse along with ZFC. Is this right? Or is it true that one can work inside ZFC always (and deal only with small categories)?

(This may be naive, but someone can set me straight on this while we are at it: is it true that admitting a proper class amounts to admitting a strongly inaccessible cardinal?)

Thank you in advance.

In addition, I am ccing this to +David Roberts , Prof. +Chandan Dalawat , Prof. +Pierre-Yves Gaillard, Prof. +Amritanshu Prasad who all might have something to say about this. (Sorry if this comes across as a rude post.)

2

4 comments

Hey thanks! That helped! I think I now understand the situation better than before!

Add a comment...

### Kannappan Sampath

Shared publicly -Something to think about...

If you are not familiar with Sagemath it is a free
open source mathematics package that does simple things like expand algebraic
expressions as well as far more complex things (optimisation, graph theory,
combinatorics, game theory etc…). Cloud.sagemath
is a truly amazing tool not just for Sage bu for scientific computation in
general and it’s free. Completely 100% free. In this post I’ll explain why I
pay for it.

2

Add a comment...

Story

Tagline

Interested to learn the intricacies of Mathematics and enjoy its Beauty

Places

Currently

Ann Arbor, MI

Previously

Bangalore - Trichy - Chennai - Kingston, ON

Links

YouTube

Education

- Indian Statistical InstituteMathematics, 2011 - 2014Undergraduate
- Queen's UniversityMathematics, present
- University of MichiganMathematics, 2016 - presentGrad School

Basic Information

Gender

Male

A useful addition at the Union Station will be airport-style luggage carts! After all, it is a shuttle to the airport!
PS. Also buy your tickets before boarding and avoid having to pay onboard charges for buying tickets onboard.

Public - 4 months ago

reviewed 4 months ago

Public - 4 months ago

reviewed 4 months ago

Good place to go shopping and all; but the cell phone reception inside the mall is so poor (atleast with Wind). : (

Public - 4 months ago

reviewed 4 months ago

HI-Toronto is located in the heart of Downtown Toronto! There are TTC bus stops and a subway station (King Station) at a walkable distance from the hostel. This makes it an ideal place for backpackers.
The crew is very friendly and the ambience is casual and party-like at night. They serve a pretty good breakfast in the morning and is included in the price for the room.
Highly recommended if you are a budget-traveller.

Public - 4 months ago

reviewed 4 months ago

Definitely well worth a visit!

Public - 4 months ago

reviewed 4 months ago