* ''Goal'' -- Implement Witt vectors over a general ring * ''Type'' -- basic features * ''Priority'' -- Low * ''Difficulty'' -- Easy * ''Prerequisites'' -- None * ''Background'' -- know about Witt vectors * ''Contributors'' -- Taylor Dupuy, David Roe, Luis Finotti * ''Progress'' - not started * ''Related Tickets'' -- http://trac.sagemath.org/sage_trac/ticket/11457 == Discussion == Perhaps someof the results [[http://www.math.utk.edu/~finotti/papers/witt.pdf|here]] could be relevant. There is some code written for MAGMA available [[http://www.math.utk.edu/~finotti/witt/|here]]. == Tasks == -p-typical -truncated witt vectors -teichmuller lifts