While Nvidia GTC and NCAA March Madness may capture the initial headlines in San Jose this month, arts and entertainment activities will be extensive and accessible to local residents and visitors alike. San Jose is one of the most culturally diverse cities in the U.S., and its creative community is vital to the city’s authentic identity. As tech professionals and sports fans flood the area, the city and local arts groups will host concerts, festivals, interactive public art installations and cultural events that highlight San Jose’s diversity and reputation for innovation — turning the downtown into a hub of excitement,…