Sameer Kailasa

Member for 9 years, 11 months
Last seen more than a month ago

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group-theory

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39

A Gift Problem for the Year 2018

Jan 23, 2018

21

How do I solve this improper integral: $\int_{-\infty}^\infty e^{-x^2-x}dx$?

May 8, 2015

20

Equation with solution in prime numbers

Sep 29, 2017

17

Putnam 2007 A5: Finite group $n$ elements order $p$, prove either $n=0$ or $p$ divides $n+1$

Jul 31, 2018

17

Prove that the Lie derivative of a vector field equals the Lie bracket: $\frac{d}{dt} ((\phi_{-t})_* Y)|_{t=0} = [X,Y]$

Mar 21, 2018

Questions

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18

Operator norm of orthogonal projection

May 16, 2014

17

When does $(ab)^n = a^n b^n$ imply a group is abelian?

Dec 5, 2014

17

When is the automorphism group of the Cayley graph of $G$ just $G$?

Jan 9, 2015

14

Survivor distribution following a zombie outbreak

Jun 5, 2019

13

Limiting behavior of coins on a finite graph with flips activated by a full neighborhood

Oct 12, 2020

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group-theory

103

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19

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abstract-algebra

82

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26

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real-analysis

65

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18

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combinatorics

61

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18

posts

finite-groups

61

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8

posts

Reputation

+10

Prove that the Lie derivative of a vector field equals the Lie bracket: $\frac{d}{dt} ((\phi_{-t})_* Y)|_{t=0} = [X,Y]$

+10

If $|f(z)|\leq |f(z^2)|$ on the unit disk, show that $f$ is a constant function.

+10

Putnam 2007 A5: Finite group $n$ elements order $p$, prove either $n=0$ or $p$ divides $n+1$

+10

Is every map from $\mathbb{R}P^2 \to S^2$ nullhomotopic?

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