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Mostly interested in algebra, commutative or not commutative, and tropical algebra.

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Top Questions

Functional Equation $f(f'(x))=-f(x)$

differential-equations functional-equations asked Jan 8 '15 at 19:59

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Top Answers

Simple Proof of the Euler Identity $\exp{i\theta}=\cos{\theta}+i\sin{\theta}$

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Investigate convergence of $\sum_{n=2}^\infty \frac{1}{n(n-1)}$

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Convergence of $\sum\limits_{n=1}^\infty \frac {n+1}{2^n}$.

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Semi-ring with isomorphic additive and multiplicative structure

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Proving that $f(x)=x^3+x+2$ is bijective without calculus

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