The young Belgian artist Jan de Cock (b. 1976) has shown in many European venues over the last several years, including the Tate Modern in London and De Appel in Amsterdam. This exhibition at MoMA is his first major show in the United States. Landing on our shores after having achieved the status of a distant but persistent rumor, if not quite a cult item, his work turns out to be compellingly erudite, tasteful and clever. But after the first flush of formal audacity wears thin, it unfortunately registers as an emotional dead end, dry and airless, failing to find resonance beyond its own hermetic self involvement.