Publications

(Research partly supported by grants from NSERC since 1990)

[30]	S. Walters The K-inductive Structure of the Noncommutative Fourier Transform Math. Scand. 124 (2020), No. 2, 305-319. arXiv:1706.00076 - doi.org/10.7146/math.scand.a-114723 Dedicated to Canada on her 150th birthday
[29]	S. Walters Semiflat Orbifold Projections Houston J. Math. 44 (2018), No. 2, 645--663. In Memory of Mom.
[28]	S. Walters Orthogonality Relations And Topological Invariants Of Fourier Invariant Fields Of Projections Jour. Operator Theory 77 (2017), No. 1, 191-203. Online Abstract
[27]	S. Walters Projections Nearly Orthogonal To Their Symmetries J. Math. Analysis Appl. 446 (2017), No. 2, 1356-1361. DOI: http://dx.doi.org/10.1016/j.jmaa.2016.09.013
[26]	S. Walters Toroidal Orbifolds of Z3 and Z6 Symmetries of Noncommutative Tori Nuclear Physics B 894 (2015), 496-526. DOI: http://dx.doi.org/10.1016/j.nuclphysb.2015.03.008 Dedicated to George Elliott on his 70th birthday.
[25]	S. Walters Periodic Integral Transforms and Associated Noncommutative Orbifold Projections C. R. Math. Rep. Acad. Sci. Canada 37 (2015), No. 3, 114-120. PDF available Dedicated to George Elliott on his 70th birthday.
[24]	S. Walters Cubic and Hexic Integral Transforms for Locally Compact Abelian Groups C. R. Math. Rep. Acad. Sci. Canada 37 (2015), No. 4, 121-130.
[23]	S. Walters Topological Obstruction to Approximating the Irrational Rotation C*-algebra by Certain Fourier Invariant C*-subalgebras C. R. Math. Rep. Acad. Sci. Canada 37 (2015), No. 3, 94-99. PDF available
[22]	S. Walters The Exact Tracial Rokhlin Property Houston J. Math. 41 (2015), No. 1, 265-272.
[21]	S. Walters Decomposable projections related to the Fourier and flip automorphisms Math. Scand. 107 (2010), 174-197.
[20]	S. Echterhoff, W. Lueck, N. C. Phillips, and S. Walters The structure of crossed products of irrational rotation algebras by finite subgroups of SL2(Z), J. Reine Angew. Math. (Crelle's Journal) 639 (2010), 173-221. Available at arXiv: math.OA/0609784
[19]	J. Buck and S. Walters Non commutative spheres associated with the hexic transform and their K-theory, J. Operator Theory 58 (2007), no.2, 441-462.
[18]	J. Buck and S. Walters Connes-Chern characters of hexic and cubic modules, J. Operator Theory 57 (2007), 35-65. [Abstract] (Dedicated to George Elliott on his 60th.)
[17]	S. Walters On the inductive limit structure of order four automorphisms of the irrational rotation algebra, Internat. J. Math. 17 (2006), no. 1, 107-117. [Abstract]. (Dedicated to Paul Milnes on his 60th.)
[16]	P. Milnes and S. Walters Discrete Cocompact subgroups of G5,3 and related C*-algebras, Rocky Mountain J. Math. 35 (2005), No. 5, 1765-1786. arXiv: math.OA/0105104. [Abstract].
[15]	S. Walters Periodic Integral Transforms and C*-algebras, C. R. Math. Rep. Acad. Sci. Canada 26 (2004), no. 2, 55-61. arXiv: math.OA/0401340. [Abstract].
[14]	S. Walters Fourier invariant partially approximating subalgebras of the irrational rotation algebra, Proc. London Math. Soc. 88 (2004), no. 3, 505-525. arXiv: math.OA/0106053. [Abstract].
[13]	S. Walters The AF structure of non commutative toroidal Z/4Z orbifolds, J. Reine Angew. Math. (Crelle's Journal) 568 (2004), 139-196. arXiv: math.OA/0207239. [Abstract]. (Dedicated to my Mother on her 70th.)
[12]	S. Walters On Fourier orthogonal projections in the rotation algebra, J. London Math. Soc. (2) 68 (2003), no. 1, 193-205. arXiv: math.OA/0012053. [Abstract].
[11]	S. Walters K-groups and classification of simple quotients of group C*-algebras of certain discrete 5-dimensional nilpotent groups, Pacific J. Math. 202 (2002), no. 2, 491-509. [Abstract]. (Available in PJM achieves.)
[10]	S. Walters K-theory of non commutative spheres arising from the Fourier automorphism, Canad. J. Math. 53 (2001), no. 3, 631-672. [Abstract]. (Available in PS form at the CMS online publications.)
[9]	P. Milnes, and S. Walters Discrete Cocompact subgroups of the 4-dimensional nilpotent connected Lie group and their group C*-algebras, J. Math. Analysis Appl. 253 (2001), no. 1, 224-242. [Abstract] - PDF form.
[8]	S. Walters Chern characters of Fourier modules, Canad. J. Math. 52 (2000), no. 3, 633-672. [Abstract]. (Available in pdf/ps form at the CMS online publications.)
[7]	P. Milnes and S. Walters C*-Algebras characterized by ergodic actions of the n-torus, Bull. London Math. Soc. 32 (2000), no. 4, 465-470. (Available on this list.)
[6]	S. Walters On the irrational quartic algebra, C. R. Math. Rep. Acad. Sci. Canada 21 (1999), no. 3, 91-96.
[5]	P. Milnes and S. Walters Simple infinite dimensional quotients of C*(G) for discrete 5-dimensional nilpotent groups G, Illinois J. Math. 41 (1997), no. 2, 315-340. [Abstract]; MR 98h:22006.
[4]	S. G. Walters Inductive limit automorphisms of the irrational rotation algebra, Comm. Math. Phys.171 (1995), no. 2, 365-381. [Abstract]; MR 97a:46088. (Dedicated to George Elliott on his 50th.)
[3]	S. G. Walters Projective modules over the non-commutative sphere, J. London Math. Soc. (2) 51 (1995), no. 3, 589-602. [Abstract]; MR 96m:46135
[2]	S. Walters Strong Morita equivalence for the quasi-rotation C*-algebras, J. Operator Theory 31 (1994), no. 2, 327-349. [Abstract]; MR 96m:46134
[1]	P. Milnes and S. Walters Simple quotients of the group C*-algebra of a discrete 4-dimensional nilpotent group, Houston J. Math. 19 (1993), no. 4, 615-636. [Abstract] (11K); MR 94k:46119