Knut Sydsæter (5 October 1937 – 29 September 2012) was a Norwegian mathematician. He is known for having written several books in mathematics for economic analysis, mainly in Norwegian and English. However, his books have been released in several other languages such as Swedish, German, Italian, Chinese, Japanese, Portuguese, Spanish, Russian and Hungarian among others. References External links Knut Sydsæter's Home Page (archived at web.archive.org) Norwegian economists Norwegian mathematicians Academic staff of the University of Oslo 1937 births 2012 deaths