https://mathtuition88.com/2014/11/20/what-is-vixra/

**“arXiv”** opposite is **“viXra”.**

The former **“arXiv”** is administered by Cornell University for Math paper publishing online. The traditional math journals would take 2 years to review and publish.

The Russian Mathematician G. **Perelman** was fed up of the long and bureaucratic review process, sent his proof of the 100-year-old unsolved “**Poincaré Conjecture”** to **arXiv** site. Later it was recognized to be correct but Perelman refused to accept the **Fields Medal** and $1 million **Clay Prize**.

See http://tomcircle.wordpress.com/2013/03/31/grigory-perelman-arxiv/

The new site **“viXra”** is open to anybody in the world while “arXiv” is still restricted to academics.

This young Singapore mathematician **William Wu** proved his new found Math Theorem on **“viXra”** site:

**Prove that: if ****p** is prime, for any number k,

$latex boxed {(p – 1)^{p^k} equiv -1 mod {p^k}}$

[By using the Binomial Theorem and Legendre’s Theorem.]

**Example:** p = 3, k=2, 3^2=9

2^9 = 512…

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