More than 30 state attorneys general ask a federal court to impose structural remedies on Live Nation Entertainment and Ticketmaster following a jury finding that the companies held an illegal monopoly in the live entertainment and ticketing market. In filings made Thursday, the states argue that the appropriate fix is to require Live Nation to divest its Ticketmaster unit rather than rely on lighter behavioral measures. The requests build on an antitrust victory for the states in which a jury concluded that the firms’ conduct violated U.S. competition laws. According to the states, divestiture would reduce market concentration and restore competition for consumers and artists in the live music industry. The states’ proposed remedy would separate the companies in a way that limits Live Nation’s ability to control ticketing and venue-related leverage. The court is expected to consider arguments from both sides about what remedy, if any, should follow the jury’s liability finding and how any divestiture would be structured and enforced.