David B. Jaffe -- Research Interests -- Picard Groups, Etc.

Research Interests - Picard Groups, Etc.

  1. "Coherent functors, with application to torsion in the Picard group", Transactions of the AMS 349 (1997), 481-527. (I've left the preprint here, 196Kb gzipped postscript file). Note typo, p. 491, an A-functor is quasi-coherent if it may be obtained as an iterated finite limit of strictly QUASI-coherent A-functors.
  2. "On the Picard group: torsion and the kernel induced by a faithfully flat map", coauthored with R. Guralnick, W. Raskind, R. Wiegand, Journal of Algebra 183 (1996), 420-455.
  3. "Functorial structure of units in a tensor product", to appear in the Transactions of the AMS (click here, 121Kb gzipped postscript file).
  4. Group scheme tools intended for application to the Picard group: "Relative representability of group scheme sections", American J. of Math. 112 (1990), 461-479.
  5. Ditto: "On sections of commutative group schemes", Compositio Math. 80 (1991) 171-196.
  6. Extensions of etale by connected group spaces, Transactions of the AMS 335 (1993), 155-173.