Update AUTHORS
Update aboutus.rst
Remove duplicate line
Merge pull request #2076 from shikil/ntheory

Remove duplicate line
Merge pull request #2075 from rishabh-git/patch-2

Update aboutus.rst
Merge pull request #2071 from rishabh-git/patch-1

Update AUTHORS
Add Rishabh Dixit to .mailmap
Simplify Mul.as_real_imag() for imaginary multiplicands (issue 3329)
Fix failing diff test after Mul.as_real_imag() modifications (issue 3329)
Merge pull request #2042 from skirpichev/3329-mul-as_real_imag

Simplify Mul.as_real_imag() for imaginary multiplicands (issue 3329)