Gilles Rivest

David Anthony Klarner (October 10, 1940 – March 20, 1999) was an American mathematician, author, and educator. He is known for his work in combinatorial enumeration, polyominoes, and box-packing. Klarner was a friend and correspondent of mathematics popularizer Martin Gardner and frequently made contributions to Gardner's Mathematical Games column in Scientific American. He edited a book honoring Gardner on the occasion of his 65th birthday. Gardner in turn dedicated his twelfth collection of m…