These are the Extra, spur-of-the-moment problems that we (any of us) come up with in our Number Theory class. Isaac and Amos keep track of the problems. I adjoin them to a text file which is linked from our course page http://math.ufl.edu/~squash/course.numt2.2006t.html As of 05Sep2006: ================================================================ E1: (Abbreviated: Needs info from class) Give a complete description of the Floyd cycle-finding algorithm. Using C to denote the cycle-length, and T for the length of the tail, give an O(C+T) algorithm ["big O" of C+T] to find: C, T, and the first-position in the orbit that is in the loop. ================================================================ Let /A be the set 3|N + 1 of "Aaron numbers" (those posints who mod-3 residue is 1). E2: What can you say abouts Primes(/A)? E3: What can you say abouts Irred(/A)? E4: Give an infinite subset G of the integers which has 1 and is sealed under multiplication and negation. Furthermore, there are G-irreducibles that are not G-prime. I.e, get an example like the Aaron numbers, but which is sealed under negation. ================================================================