Untitled Document

26: Siegfried Echterhoff and Dana P. Williams, Crossed products by -actions, J. Funct. Anal. 158 (1998), 113-151.
27: Astrid an Huef, Iain Raeburn, and Dana P. Williams, An equivariant Brauer semigroup and the symmetric imprimitivity theorem, Trans. Amer. Math. Soc., 352(10):4759-4787, 2000.
28: Siegfried Echterhoff and Dana P. Williams, Locally inner actions on -algebras, J. Operator Theory 45 (2001), 131-160.
29: Iain Raeburn, Aidan Sims, and Dana P. Williams, Twisted actions and obstructions in group cohomology, In -algebras (Münster, 1999), pages 161-181. Springer, Berlin, 2000.
30: Dana P. Williams, A primer for the Brauer group of a groupoid, In Groupoids in analysis, geometry, and physics (Boulder, CO, 1999), volume 282 of Contemp. Math., pages 21-34. Amer. Math. Soc., Providence, RI, 2001.
31: Astrid an Huef and Dana P. Williams, Ideals in transformation-group $C^\ast$ -algebras, J. Operator Theory, 48(3, suppl.):535-548, 2002.
32: Astrid an Huef, Iain Raeburn, and Dana P. Williams, Proper actions on imprimitivity bimodules and decompositions of Morita equivalences, J. Funct. Anal. 200 (2003), 401-428.
33: Siegfried Echterhoff and Dana P. Williams, Central twisted transformation groups and group -algebras of central group extensions, Indiana Univ. Math. J. 51 (2002), 1277-1304.

	Dartmouth College
	Department of Mathematics
	Hanover, New Hampshire

Professional Operator Algebras Papers Available on Line Research Papers Expository Articles Vita Graduate Texts Morita Equivalence and Continuous-Trace C-algebras Crossed Products of C-algebras Home Contact Info Info for Graduate Students The Analysis Certification Exam Working in Operator Algebras (with me). Info for Majors How do I major in math? Why should I major in math? Preparing for Graduate School Teaching Buzoe and Other Things		Research Publications 1998-2002 26 Siegfried Echterhoff and Dana P. Williams, Crossed products by -actions, J. Funct. Anal. 158 (1998), 113-151. 27 Astrid an Huef, Iain Raeburn, and Dana P. Williams, An equivariant Brauer semigroup and the symmetric imprimitivity theorem, Trans. Amer. Math. Soc., 352(10):4759-4787, 2000. 28 Siegfried Echterhoff and Dana P. Williams, Locally inner actions on -algebras, J. Operator Theory 45 (2001), 131-160. 29 Iain Raeburn, Aidan Sims, and Dana P. Williams, Twisted actions and obstructions in group cohomology, In -algebras (Münster, 1999), pages 161-181. Springer, Berlin, 2000. 30 Dana P. Williams, A primer for the Brauer group of a groupoid, In Groupoids in analysis, geometry, and physics (Boulder, CO, 1999), volume 282 of Contemp. Math., pages 21-34. Amer. Math. Soc., Providence, RI, 2001. 31 Astrid an Huef and Dana P. Williams, Ideals in transformation-group $C^\ast$ -algebras, J. Operator Theory, 48(3, suppl.):535-548, 2002. 32 Astrid an Huef, Iain Raeburn, and Dana P. Williams, Proper actions on imprimitivity bimodules and decompositions of Morita equivalences, J. Funct. Anal. 200 (2003), 401-428. 33 Siegfried Echterhoff and Dana P. Williams, Central twisted transformation groups and group -algebras of central group extensions, Indiana Univ. Math. J. 51 (2002), 1277-1304.