Adjunct Professor of Mathematics.
Former Chair of Mathematics-Statistics Department
(March 2016 - June 2020; April 2003--June 2007; Acting Chair during July--December 2008, January--June 2014.) Quick Bio

Research Area

Broadly, Functional Analysis. Primarily, C*-Algebras, Operator Algebras, K-theory, noncommutative geometry, theoretical and mathematical Physics. More

Recent Papers in Refereed Journals

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

S. Walters,
Semiflat Orbifold Projections, Houston J. Math. 44 (2018), No. 2, 645-663. arXiv:1711.01016

S. Walters,
Orthogonality Relations And Topological Invariants Of Fourier Invariant Fields Of Projections, J. Operator Theory 77 (2017), No. 1, 191-203. Online Abstract

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

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.

My first best paper

S. Walters,
Inductive limit automorphisms of the irrational rotation algebra, Comm. Math. Phys. 171 (1995), no. 2, 365-381. MR 97a:46088 -- Online

Recently Completed Papers

S. Walters,
Modular Images Of Approximately Central Projections (2020), 12 pages. arXiv:2006.07728

S. Walters,
K-theory of Rotation Algebra Crossed Products by Amalgamated Products of Finite Cyclic Groups (2018), 16 pages. arXiv:1809.09286

Papers In Progress

S. Walters,
K-theory of approximately central projections in the Flip orbifold (2020), 53 pages (approx).

S. Walters,
Orbifolds of the Weyl Algebra and their Traces (2018), 28 pages (approx).

S. Walters,
K-theory of Approximately Central Projections: Fourier Case (2018), 32 pages (approx) - in preparation.

S. Walters,
The Polynomial Rotation Algebra (2018), 15 pages (approx). (Expository paper on the rotation algebra without topology.)

Expository Papers

S. Walters,
A proof of Cantor's theorem , preprint (2020), 2 pages. arXiv:1604.00699v1

S. Walters,
How Einstein Got His Field Equations, (2016), 7 pages. (Expository paper based on a lecture by same title in commemoration of General Relativity centennial.) It is posted on the Cornell arXiv.

S. Walters,
Anticommutator Norm Formula for Projection Operators, preprint (2015), 8 pages. arXiv:1604.00699v1

Research Grant

My research has been partly supported by NSERC from 1990 until 2011. Thank you, NSERC.


Department of Mathematics and Statistics
The University of Northern B.C.
3333 University Way
Prince George, B.C. V2N 4Z9, CANADA