# DER

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bio website location Berlin age 19 member for 1 year, 8 months seen 14 hours ago profile views 485

# 175 Questions

 6 Find the values of the positive integers $n$ such that: $\frac{(-\sqrt{3}+2)^{n+1}+(\sqrt{3}+2)^{n+1}}{4n+3}$ is positive integer 5 Find sufficient and necessary conditions to guarantees this property 4 How I can simplify this inequality or how I can solve it? 4 How I can prove that: If $X$ is compact, then any map $f\colon X \to Y$ is proper? 3 Show that $≺$ is a total ordering

# 1,172 Reputation

 +5 Solving this equation: $⌊r^{m²}α⌋-r^{2m-1}⌊r^{(m-1)²}α⌋=d$ +10 Find the values of the positive integers $n$ such that: $\frac{(-\sqrt{3}+2)^{n+1}+(\sqrt{3}+2)^{n+1}}{4n+3}$ is positive integer +5 Show that the series $∑_{m=1}^{∞}(r^{-m}/(2^{m}-1))$ is convergente for some positive integer $r>0$ +5 Under what conditions the point $z$ is unique in its range of existence?

 1 Can we deduce that $h=f+g≠0$ 0 What are the other methods used to prove that a homomorphism is bijective? 0 How to find the stationary points 0 The alternating zeta function and functional equation 0 I want to verify the proof of this result

# 65 Tags

 1 complex-analysis × 19 0 group-theory × 13 0 real-analysis × 89 0 proof-verification × 11 0 real-numbers × 20 0 elliptic-curves × 10 0 sequences-and-series × 18 0 elementary-number-theory × 10 0 analyticity × 14 0 number-theory × 8

# 2 Accounts

 Mathematics 1,172 rep 414 MathOverflow 184 rep 113