Reputation
30,777
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99/100 score
27/20 answers
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~160k people reached

Jan
27
revised Algebraic integers divided by a prime
added 1 character in body
Dec
21
revised Canonical colorings over $ \omega $
added 134 characters in body
Dec
10
revised Projector making sum of double products equal to zero
deleted 8 characters in body
Dec
6
revised $\cos k\theta$ and $\cos(k+1)\theta$ are both rational only when $\theta=\pi/6$
edited body
Dec
6
revised $\cos k\theta$ and $\cos(k+1)\theta$ are both rational only when $\theta=\pi/6$
added 25 characters in body
Dec
4
revised How prove that polynomial has only real root.
added 4 characters in body
Nov
16
revised Is a linear factor more likely than a quadratic factor?
added 19 characters in body
Nov
16
revised Is a linear factor more likely than a quadratic factor?
added 6 characters in body
Nov
6
revised Formula for sum of three roots in base field
added 8 characters in body
Nov
3
revised Show that if $f:\mathbb{R}\rightarrow\mathbb{R}$ is uniformly continuous, then sequence $f(x+1),f(x+\frac{1}{2}),f(x+\frac{1}{3}),\ldots$
added 2 characters in body
Oct
8
revised Any nonzero polynomial can be suitably modified to become everywhere nonzero on ${\mathbb Z}^n$?
deleted 98 characters in body
Oct
8
revised Commutant of generic matrix with polynomial coefficients
deleted 496 characters in body
Oct
2
revised Prove that $(x_1y_1 + x_2y_2 - 1)^2 \ge (x_1^2 + x_2^2 - 1)(y_1^2 + y_2^2 - 1)$
added 32 characters in body
Sep
23
revised Let $a_1,a_2,a_3,…a_n\geq0$ and $a_1+a_2+a_3+…+a_n=2m$,then prove that the greatest possible value of $\sum_{i=1}^{n}a_i.a_{i+1}$.
added 13 characters in body
Sep
23
revised Minimum value - with cube root of unity
added 15 characters in body
Sep
20
revised How many (positive real) zeroes can $f(x)=x^a-b(c^x)$ have?
added 11 characters in body
Sep
19
revised Consistency hierarchy between models with many urelements
added 7 characters in body
Sep
12
revised Turning ZFC into a free typed algebra
added 57 characters in body
Sep
11
revised Prove $\{u_n\}$ converges to $\sqrt[3]{u_2^2 u_1}$ without using subsequences.
added 343 characters in body
Sep
8
revised Can anyone give me $k$ projection maps $P_i:V \to V$ ;$i=1,…,k$ such that $\sum_{i=1}^k Im(P_i)$ is not a direct sum but $\sum_{i=1}^k P_i=Id$.
added 135 characters in body