DETROIT (AP).- When a painting attributed to Vincent Van Gogh was bequeathed to the Detroit Institute of Arts in 1990, it was met with immediate suspicion from scholars and art experts. “Still life with Carnations,” an unsigned painting of flowers, was to be sold to help fund an endowment to buy modern art, said museum director Graham Beal. Instead, auction houses refused to sell it. Van Gogh specialists questioned its authenticity. And the painting remained at the museum, where despite extensive study the question of whether it was by the famed artist or an imitator remains unanswered. “It’s gone into this rather unfortunate area of not being trusted,” Beal said Thursday. “But as tests have shown, there’s nothing in it that says this cannot be a Van Gogh. All of the paints, all of the technique, everything is commensurate with the way Van Gogh was working at that time.” The painting is being displayed alongside a genuine Van Gogh