1)
Why does the Torah find it necessary to write, "v'Aholivamah bas Anah"?
1.
Ramban: It is the way of the Torah to attach the name of a woman to her father. 1
1
As we find in the verse, "v'Es Dinah Bito" (46:15).
2)
Why does the Torah write here, "v'Aholivamah bas Anah;" and above "Aholivamah bas Anah bas Tziv'on" (36:14)?
1.
Ramban: In fact, there were two women named Aholivamah - the one here was the daughter of Anah, the son of Se'ir ha'Chori, whereas the one in 36:2 (the wife of Esav) was the daughter of Anah, son of Tziv'on (a cousin of the one mentioned here). 1
2.
Ha'amek Davar: Refer to 36:24:153:1.