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An expert is a man who has made all the mistakes, which can be made, in a very narrow field. (Niels Bohr)


1d
revised Banach Fixed Point Theorem. Measurable version.
Add my attempt.
1d
revised The problem of the most visited point.
deleted 1 character in body
1d
revised Matrices over field with characteristic $p$
Math mode in title.
1d
revised Distributional derivate of $f(t)$
deleted 13 characters in body; edited title
2d
revised min-max polynomial approximation with sign definite error
added 35 characters in body
2d
revised $ d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}? $
update tags
Aug
3
revised If $f$ is uniformly continuous on $\mathbb{R}$, $f(x) \ge a >0$ and $g(x) = 1/f(x)^2$, then $g(x)$ is uniformly continuous
added 56 characters in body
Aug
3
revised If $f$ is continuous and $\int_0^1f(xt)dt=0$ for every $x $, then $f\equiv 0$
correction of language errors
Jul
24
revised Banach Fixed Point Theorem. Measurable version.
added 27 characters in body
Jul
24
revised Banach Fixed Point Theorem. Measurable version.
added 15 characters in body
Jul
24
revised Generalization of Banach's fixed point theorem
Changing the type " ->" suitable latex code: \ to
Jul
13
revised Percolation and number of phases in the 2D Ising model.
Correction of mistakes in writing.
Jul
12
revised Different methods to compute $\sum\limits_{n=1}^\infty \frac{1}{n^2}$
added 2 characters in body
Jul
11
revised $ d(x,y)^2 \le d(x,z)^2 - d(y,z)^2\color{}{+\varphi\big(x,y,z,d(x,y),d(y,z) \big)}? $
added 750 characters in body; edited tags
Jul
8
revised On a topological proof of the infinitude of prime numbers.
added 9 characters in body
May
13
revised Computing the Frechet derivative of the inverse endomorphism.
added 37 characters in body
Apr
27
revised If $f$ is uniformly continuous on $\mathbb{R}$, $f(x) \ge a >0$ and $g(x) = 1/f(x)^2$, then $g(x)$ is uniformly continuous
deleted 1 character in body
Apr
26
revised Why is $\operatorname{Div}\big(\operatorname{Curl} F\big) = 0$? Intuition?
added 10 characters in body; edited title
Apr
18
revised Using implicit function theorem without using the inverse function theorem.
added 53 characters in body
Apr
5
revised Show that if $A^3=0$ but $A^2\ne0$, then $A^2v=0$ has a nontrivial solution
added 66 characters in body