AMSTERDAM — Yellow tentacles decorated with rhythmic patterns of dots swirl around a room, the patterns echoed on the floor and the walls. Reflections bounce off mirrors, blurring the boundaries of the space at Amsterdam's Stedelijk Museum. The installation – specially created for an exhibition of the work of Japanese artist Yayoi Kusama, who died Aug 14 at age 97 — is titled Infinity Mirrored Room — The Hope Of The Polka Dots Buried In Infinity Will Eternally Cover The Universe. The room is at the heart of the exhibition at the Stedelijk that opens this week, just two weeks after her death. What was to have been a retrospective has turned…