Letters to the editor Elemer E. RosingerAvinoam MannJosé Mendoza Department 12 January 2009 Pages: 3 - 6
“unsolved problems in mathematics” J. von Neumann’s address to the international congress of mathematicians, amsterdam, september 2-9, 1954 Miklós Rédei Article 12 January 2009 Pages: 7 - 12
The mathematical tourist Cathy KesselDaniele C. StruppaNed Glick Department 12 January 2009 Pages: 13 - 17
The shift equivalence problem K. H. KimF. W. RoushJ. B. Wagoner Article 12 January 2009 Pages: 18 - 29
Mathematics after forty years of the space age Solomon W. Golomb Article 12 January 2009 Pages: 38 - 44