Stack Exchange

Josué Molina

Houston, TX

molinajosue.blogspot.com

Age: 24

God can be found in just about anything you decide to venture into—including mathematics.

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Top Questions

If $A$ is compact, is then $f(A)$ compact?

real-analysis compactness asked Feb 21 '12 at 19:01

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Solving a System of Equations of the form $\sum x^k = C$

algebra-precalculus asked Mar 29 '12 at 22:02

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Finding $\lim_{n\to\infty}\Phi(n)/n^2$, When $\Phi(n)=\sum_{i=1}^{n}\phi(n)$

elementary-number-theory asked Feb 25 '12 at 3:16

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Applying Euler's Theorem to Prove a Simple Congruence

elementary-number-theory asked Mar 6 '12 at 20:36

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Show that $a^6-1$ is divisible by $168$ whenever $(a,42)=1$.

elementary-number-theory asked Mar 7 '12 at 3:10

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Uniform Convergence of an Exponential Sequence of Functions

real-analysis asked Mar 14 '12 at 0:46

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Pointwise Convergence on an Infinite Intersection of Function Images

real-analysis asked Mar 16 '12 at 4:09

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Top Answers

What do the $+,-$ mean in limit notation, like$\lim\limits_{t \to 0^+}$ and $\lim\limits_{t \to 0^-}$?

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Question about the $\epsilon-\delta$ definition of continuity of function

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