Publications

1. B. Hayes, S. Kunnawalkam Elayavalli, L. Robert, Selfless reduced free product C*-algebras (2025). arXiv
2. I. Kulp, C. Ochanine, L. Richard, L. Robert, S. Whitman, Decreasing paths of polygons,
   Discrete Comput Geom (2025). https://doi.org/10.1007/s00454-025-00750-5 arXiv
3. L. Robert, Selfless C*-algebras,
   Adv. Math. 478 (2025), Paper No. 110409, 28 pp. arXiv
4. L. Fogang Takoutsing, L. Robert, Distinguishing C*-algebras by their unitary groups,
   Proc. Amer. Math. Soc. 152 (2024), no. 10, 4301–4310. arXiv
5. R. Antoine, and F. Perera, L. Robert, H. Thiel, Traces on ultrapowers of C*-algebras,
   J. Funct. Anal. 286 (2024), Article No. 110341, 65 pages. arXiv
6. A. Chand, L. Robert, Simplicity, bounded normal generation, and automatic continuity of groups of unitaries,
   Advances in Mathematics, 415 (2023), Paper No. 108894, 52 pp. arXiv
7. M. Moodie, L. Robert, Cones of traces arising from AF C*-algebras,
   Documenta Mathematica, 28 (2023), no. 6, pp. 1279–1321. arXiv
8. R. Archbold, I. Gogic, L. Robert, Local variants of the Dixmier property and weak centrality for C*-algebras,
   International Mathematics Research Notices, Volume 2023, Issue 2, 2023, Pages 1483–1513. arXiv
9. L. Richard, F. Riepl, L. Robert, G. Turcu, L. Walls Building homotheties through pinches,
   Linear and Multilinear Algebra, 70 (2022), no. 22, 7469--7483. journal, pdf
10. L. Robert, C*-algebras where every element is a limit of products of positive elements,
    Canadian Mathematical Bulletin, Volume 65, Issue 3, 2022 , pp. 628 - 632. arXiv
11. R. Antoine, F. Perera, L. Robert, H. Thiel, C*-algebras of stable rank one and their Cuntz semigroups,
    Duke Math. J., 171, (2022) 1, 33-99. arXiv
12. A. Chand, L. Robert, A. Sutradhar, Simultaneous averaging to zero by unitary mixing operators,
    Proc. Amer. Math. Soc. 149 (2021), 5169-5177. arXiv
13. R. Antoine, F. Perera, L. Robert, H. Thiel, Edwards' condition for quasitraces on C*-algebras,
    Proc. Roy. Soc. Edinburgh Sect. A: Mathematics, Volume 151 , Issue 2 (2021), pp. 525 - 547. arXiv
14. L. Robert, L. Santiago, A revised augmented Cuntz semigroup,
    Math. Scand. Vol. 127, No. 1 (2021), 131–160. arXiv
15. I. Farah, B. Hart, M. Lupini, L. Robert, A. Tikuisis, A. Vignati, W. Winter, Model Theory of C*-algebras,
    Mem. Amer. Math. Soc. 271 (2021), no. 1324, viii+127 pp. arXiv
16. L. Robert, Normal subgroups of invertibles and of unitaries in a C*-algebra,
    J. Reine Angew. Math. 756 (2019), 285--319. arXiv
17. R. Archbold, L. Robert, A. Tikuisis, Maximally unitarily mixed states on a C*-algebra,
    J. Operator Theory, 80:1 (2018), 187–211. arXiv
18. P. W. Ng, L. Robert, P. Skoufranis, Majorization in C*-algebras.
    Trans. of the Amer. Math. Soc., Volume 370, Number 8 (2018), Pages 5725–5759. arXiv
19. R. Archbold, L. Robert, A. Tikuisis, The Dixmier property and tracial states for C*-algebras,
    J. Funct. Anal., 273 (2017), no. 8, 2655--2718. arXiv
20. P. W. Ng, L. Robert, The kernel of the determinant map on pure C*-algebras,
    Houston J. Math. Vol. 43, No. 1 (2017) 139-168. arXiv
21. L. Robert, A. Tikuisis, Nuclear dimension and Z-stability of non-simple C*-algebras.
    Trans. of the Amer. Math. Soc., 369 (2017) 4631-4670. arXiv
22. L. Robert, On the Lie ideals of C*-algebras,
    J. Operator Theory 75 (2016), no. 2, 387--408. arXiv
23. P. W. Ng, L. Robert, Sums of commutators in pure C*-algebras,
    Münster J. of Math. 9 (2016) 121-154. arXiv
24. L. Robert, Remarks on Z-stable projectionless C*-algebras,
    Glasgow Math. J. 58 (2016) 273-277. arXiv
25. L. Robert, Nuclear dimension and sums of commutators.
    Indiana Univ. Math. J. 64 (2015) 559 - 576. arXiv
26. L. Robert, Similarity of perturbations of the shift and a different product of rational functions.
    Oper. Matrices 8 (2014), no. 1, 89--98. arXiv
27. L. Robert, The Cuntz semigroup of some spaces of dimension at most two.
    C. R. Math. Acad. Sci. Soc. R. Can., 35 (2013), no. 1, 22--32. arXiv
28. L. Robert, M. Rørdam, Divisibility properties for C*-algebras,
    Proc. London Math. Soc. (2013) 106 (6): 1330-1370. arXiv
29. L. Robert, The cone of functionals on the Cuntz semigroup,
    Math. Scand. 113 (2013), no. 2, 161--186. arXiv
30. B. Blackadar, L. Robert, A. Tikuisis, A. Toms, and W. Winter, An algebraic approach to the radius of comparison,
    Trans. of the Amer. Math. Soc., 364 (2012), no. 7, 3657--3674. arXiv
31. L. Robert, Classification of inductive limits of 1-dimensional NCCW complexes,
    Adv. in Math., 231 (2012), no. 5, 2802--2836. arXiv
32. L. Robert, Nuclear dimension and n-comparison,
    Münster J. of Math. 4 (2011), 65--72. arXiv
33. A. Tikusis, L. Robert, Hilbert C*-modules over commutative C*-algebras,
    Proc. Lond. Math. Soc., 102 (2011), 229--256. arXiv
34. G. A. Elliott, L. Robert, L. Santiago, The cone of lower semicontinuous traces on a C*-algebra,
    Amer. J. Math., Vol 133 (2011), no 4, 969--1005. arXiv
35. L. Robert, L. Santiago, Classification of C*-homomorphisms from C_0(0,1] to a C*-algebra,
    J. Funct. Anal. 258 (2010), no. 3, 869--892. arXiv
36. A. Ciuperca, L. Robert, L. Santiago, Cuntz semigroup of ideals and quotients and a generalized Kasparov Stabilization Theorem,
    J. Operator Theory Vol 64 (2010), no. 1, 155--169. arXiv
37. L. Robert, On the comparison of positive elements of a C*-algebra by lower semicontinuous traces,
    Indiana Univ. Math. J., Vo. 58 (2009). arXiv
38. E. R. Pujals, L. Robert, M. Shub, Expanding maps of the circle revisited: Positive Lyapunov exponents in a rich family,
    Ergodic Theory Dynam. Systems, Vol. 26 (2006), 1931--1937. pdf
39. L. Robert, Similarity of perturbations of Hessenberg matrices,
    J. Operator Theory, Vol. 54 (2005), n. 1: 125--136. pdf
40. J. Hernandez, L. Robert, Figures of constant width on a chessboard,
    Amer. Math. Monthly, 112 (2005), no. 1, 42--50. pdf
41. L. Robert, L. Santiago, On a class of Sobolev scalar products in the polynomials,
    J. Approx. Theory , 125(2): 169-189 (2003). pdf
42. L. Robert, L. Santiago, The Finite sections method for Hessenberg matrices,
    J. Approx. Theory , 123(1): 68-88 (2003). pdf

Apples and oranges

1. L. Robert, L. Santiago, Infinite dimensional continued fractions (2003). pdf
2. Figures of constant width on a chessboard