My research is primarily in operator algebras, specifically C*-algebras. Currently, my specialized interests are in structural properties of C*-algebras, families of representations of C*-algebras, lifting problems, universal C*-algebras, interplay between discrete/ locally compact Hausdorff groups and their universal associated C*-algebras, and algebras associated to groupoids.


B. Armstrong, G. G. de Castro, L. Orloff Clark, K. Courtney, Y-F. Lin, K. McCormick, J. Ramagge, Aidan Sims, and Benjamin Steinberg. “Reconstruction of twisted Steinberg algebras,” arXiv:2101.08556.

B. Armstrong, L. Orloff Clark, K. Courtney, Y-F. Lin, K. McCormick, and J. Ramagge. “Twisted Steinberg algebras,” to appear in J. Pure Appl. Algebr., (arXiv:1910.13005). 

K. Courtney, “Universal C*-algebras with the Local Lifting Property,” to appear in Math. Scand., (arXiv:2002.02365).

K. Courtney, D. Sherman. “The universal C*-algebra of a contraction,” J. Operator Theory, 84 (2020), Issue 1, 153-184. [] (arXiv:1811.04043).

K. Courtney, T. Shulman. “Elements of C*-algebras attaining their norm in a finite-dimensional representation,” Canad. J. Math. 71 (2019), Issue 1,
[] (arxiv:1707.01949).

K. Courtney, T. Shulman. “Free products with amalgamation over central C*-subalgebras,”  Proc. Amer. Math. Soc., 148 (2020), 765-776. [] (arXiv:1809.09134).