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Sidney Raffer's user avatar
Sidney Raffer's user avatar
Sidney Raffer
  • Member for 13 years, 8 months
  • Last seen more than 2 years ago
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All Questions Answers
Score Newest
answer
36
Computing the Galois group of a polynomial
Apr 29, 2010
answer
35
Define $\mathbb{N}$ in the ring $\mathbb{Z}$ without Lagrange's theorem
Sep 10, 2016
answer
28
Are surjectivity and injectivity of polynomial functions from $\mathbb{Q}^n$ to $\mathbb{Q}$ algorithmically decidable?
Aug 2, 2013
answer
28
Fiction books about mathematicians?
Jul 8, 2012
answer
23
How often are irrational numbers well-approximated by rationals?
Apr 26, 2010
question
22
Is a real power series that maps rationals to rationals defined by a rational function?
Oct 17, 2010
answer
19
What is the high-concept explanation on why real numbers are useful in number theory?
Apr 14, 2011
question
16
Real algebraic sets bounded away from integer points
Jan 28, 2011
answer
15
Does there exist a holomorphic function which takes given values on the positive integers?
Apr 8, 2010
question
14
Generating primes via composition of polynomials
Dec 23, 2013
Top network posts
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13
Introduction to Filters in Topology
9
Sum of the series: $\sum_{n=0}^\infty\frac{1+n}{3^n}$
9
Uses of quadratic reciprocity theorem
8
What is the shortest string that contains all permutations of an alphabet?
5
Why is Being not an entity in Heidegger's Being and Time?

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