# aortizmena

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bio website twitter.com/#!/aortizmena location age member for 2 years, 2 months seen 8 hours ago profile views 13

# 5 Questions

 5 If $\{u,v,w\}$ is a basis for $V$, then $\{u+v+w,v+w,w\}$ is also a basis: is this proof correct? 2 Help with algebraic manipulation to prove that $\Omega (M)$ constructed from $\Omega^1 (M)$ forms an algebra over $C^\infty (M)$ 2 Determine a formula for a dual basis. 0 Solving/Proving from first principles? 0 Is the permutation $\alpha : \mathbb Z_{11} \rightarrow \mathbb Z_{11}$ given by $\alpha(x)=4x^2-3x^7$ a cycle or not?

# 56 Reputation

 +10 When do equations represent the same curve? +10 Help with algebraic manipulation to prove that $\Omega (M)$ constructed from $\Omega^1 (M)$ forms an algebra over $C^\infty (M)$ +10 Determine a formula for a dual basis. +5 If $\{u,v,w\}$ is a basis for $V$, then $\{u+v+w,v+w,w\}$ is also a basis: is this proof correct?

 4 Why do people use “it is easy to prove”? 1 When do equations represent the same curve?

# 13 Tags

 1 abstract-algebra × 2 0 linear-algebra × 2 1 analytic-geometry 0 permutations 1 algebraic-curves 0 soft-question 1 algebraic-geometry 0 math-history 1 calculus 0 proof-writing

# 10 Accounts

 Physics 182 rep 19 Mathematics 56 rep 5 Ask Ubuntu 31 rep 2 TeX - LaTeX 26 rep 3 Stack Overflow 1 rep