My wife and I have been divorced for 1.5 yrs. We were married for 7 yrs. We have no children. We are both in our 20's.

When we married, she took on my last name by hyphenating hers (e.g. Sara Smith-Jones).

She continues to use the hyphenated name. What is the process to change ones name legally? Do I have any ability to request she cease use of my last name?