Mark Tomforde


Curriculum Vitae





Positions Held

Associate Professor

University of Colorado Colorado Springs
2020 -- present

Professor

University of Houston
2018 -- 2020

Associate Professor

University of Houston
2012 -- 2018

Assistant Professor

University of Houston
2006 -- 2012

Visiting Assistant Professor

College of William & Mary
2005 -- 2006

NSF Postdoctoral Fellow

University of Iowa
2002 -- 2005

Instructor

Dartmouth College
1999 -- 2002

Education


Ph.D. in Mathematics

Dartmouth College
Advisor: Dana P. Williams

Thesis: Extensions of Graph C*-algebras

June 2002

M.A. in Mathematics

Dartmouth College
June 1999

B.A. in Mathematics

Gustavus Adolphus College
GPA: 3.98

Graduated summa cum laude and with
departmental honors in Mathematics

June 1997

Research


Refereed Publications


  1. A Cuntz-Krieger uniqueness theorem for Cuntz-Pimsner algebras, with Menevşe Eryüzlü̈, submitted.

  2. Recasting the Hazrat conjecture: Relating shift equivalence to graded Morita equivalence, with Gene Abrams and Efren Ruiz, Algebr. Represent. Theory, to appear.

  3. Morita equivalence for graded rings, with Gene Abrams and Efren Ruiz, J. Algebra, to appear.

  4. Matricial Archimedean order unit spaces and quantum correlations, with Roy Araiza and Travis Russell, Indiana Univ. Math. J. 72 (2023), 2567--2591.

  5. A universal representation for quantum commuting correlations, with Roy Araiza and Travis Russell, Ann. Henri Poincaré, 23 (2022), 4489--4520.

  6. Reconstruction of groupoids and C*-rigidity of dynamical systems, with Toke Meier Carlsen, Efren Ruiz, and Aidan Sims, Adv. Math. 390 (2021), Paper No. 107923, 55 pp.

  7. The extension problem for graph C*-algebras, with Søren Eilers, James Gabe, Takeshi Katsura, and Efren Ruiz, Ann. K-Theory 5 (2020), 295--315.

  8. Naimark's problem for graph algebras, with Nishant Suri, Illinois J. Math, Illinois J. Math 61 (2017), 479--495.

  9. Classification of graph algebras: A selective survey, Operator Algebras and Applications, Proceedings of the 2015 Abel Symposium, (Eds. T.M. Carlsen, N.S. Larsen, S. Neshveyev, and C. Skau), Springer, (2016), 297--320.

  10. Chaotic behavior in a forecast model (with Michael Boyle), Pi Mu Epsilon J. 14 (2016), 237--242.

  11. The ranges of K-theoretic invariants for nonsimple graph algebras (with Søren Eilers, Takeshi Katsura, and James West), Trans. Amer. Math. Soc. 368 (2016), 3811--3847

  12. K-theory for Leavitt path algebras: computation and classification (with James Gabe, Efren Ruiz, and Tristan Whalen), J. Algebra 433 (2015), 35--72.

  13. The nuclear dimension of graph C*-algebras (with Efren Ruiz and Aidan Sims), Adv. Math. 272 (2015), 96--123.

  14. A class of C*-algebras that are prime but not primitive (with Gene Abrams), Münster J. Math. 7 (2014), 489--514.

  15. The prime spectrum and the primitive ideal space of a graph C*-algebra (with Gene Abrams), Internat. J. Math. 25 no. 7 (2014), 1450070, 22 pp.

  16. Identifying AF-algebras that are graph C*-algebras (with Søren Eilers, Takeshi Katsura, and Efren Ruiz), J. Funct. Anal. 266 (2014), 3968--3996.

  17. One-sided shift spaces over infinite alphabets (with William Ott and Paulette Willis), New York Journal of Mathematics. NYJM Monographs 5. State University of New York, University at Albany, Albany, NY (2014), 54 pp.

  18. A groupoid generalization of Leavitt path algebras (with Lisa Orloff Clark, Cynthia Farthing, and Aidan Sims), Semigroup Forum 89 (2014), 501--517.

  19. Ideals in graph algebras (with Efren Ruiz), Algebr. Represent. Theory 17 (2014), 849--861.

  20. Classification of unital simple Leavitt path algebras of infinite graphs (with Efren Ruiz), J. Algebra 384 (2013), 45--83.

  21. Ideal-related K-theory for Leavitt path algebras and graph C*-algebras (with Efren Ruiz), Indiana Univ. Math. J. 62 (2013), 1587--1620.

  22. Quotients, exactness, and nuclearity in the operator system category (with Ali Kavruk, Ivan Todorov, and Vern Paulsen), Adv. Math. 235 (2013) 321--360.

  23. Index maps in the K-theory of graph algebras (with Toke Carlsen and Søren Eilers), J. K-theory 9 (2012), 385--406.

  24. Isomorphism and Morita equivalence of graph algebras (with Gene Abrams), Trans. Amer. Math. Soc. 363 (2011), 3733--3767.

  25. Tensor products of operator systems (with Ali Kavruk, Ivan Todorov, and Vern Paulsen), J. Funct. Anal. 261 (2011), 267--299.

  26. Leavitt path algebras with coefficients in a commutative ring, J. Pure Appl. Algebra 215 (2011), 471--484.

  27. Operator system structures on ordered spaces (with Vern Paulsen and Ivan Todorov), Proc. London Math. Soc. 102 (2011), 25--49.

  28. Frame theory for binary vector spaces (with Bernhard Bodmann, My Le, Letty Reza, and Matthew Tobin), Involve 2 (2010), 589--602.

  29. On the classification of nonsimple graph C*-algebras (with Søren Eilers), Math. Ann. 346 (2010), 393--418.

  30. Graph algebras, Exel-Laca algebras, and ultragraph algebras coincide up to Morita equivalence (with Takeshi Katsura, Paul S. Muhly, and Aidan Sims), J. Reine Angew. Math. 640 (2010), 135--165.

  31. Realizations of AF-algebras as graph algebras, Exel-Laca algebras, and ultragraph algebras (with Takeshi Katsura and Aidan Sims), J. Funct. Anal. 257 (2009), 1589--1620.

  32. Continuity of ring *-homomorphisms between C*-algebras, New York J. Math. 15 (2009), 1--7.

  33. Equiangular tight frames from complex Seidel matrices containing cube roots of unity (with Bernhard Bodmann and Vern I. Paulsen), Linear Algebra Appl. 430 (2009), 396--417.

  34. Vector spaces with an order unit (with Vern I. Paulsen), Indiana Univ. Math. J. 58 (2009), 1319--1360.

  35. Ultragraph C*-algebras via topological quivers (with Takeshi Katsura, Paul S. Muhly, and Aidan Sims), Studia Math. 187 (2008), 137--155.

  36. Strong Shift Equivalence of C*-correspondences (with Paul S. Muhly and David Pask), Israel J. Math. 167 (2008), 315--346.

  37. Uniqueness theorems and ideal structure for Leavitt path algebras, J. Algebra 318 (2007), 270--299.

  38. The structure of graph C*-algebras and generalizations, Chapter in the book "Graph Algebras: Bridging the gap between analysis and algebra", Eds. Gonzalo Aranda Pino, Francesc Perera Domenech, and Mercedes Siles Molina, Servicio de Publicaciones de la Universidad de Málaga, Málaga, Spain, (2006).

  39. Strong Shift Equivalence in the C*-algebraic setting: Graphs and C*-correspondences, Contemporary Mathematics, Proceedings of the 25th Meeting of the Great Plains Operator Theory Symposium, American Mathematical Society, Providence, RI, (2006) 221--230.

  40. Topological quivers (with Paul S. Muhly), Internat. J. Math. 16 (2005), 693--756.

  41. The C*-algebras of arbitrary graphs (with Doug Drinen), Rocky Mountain J. Math. 35 (2005), 105--135.

  42. Classification theorems for the C*-algebras of graphs with sinks (with Iain Raeburn and Dana P. Williams), Bull. Austral. Math. Soc. 70 (2004), 143--161.

  43. Adding tails to C*-correspondences (with Paul S. Muhly), Documenta Math. 9 (2004), 79--106.

  44. Stability of C*-algebras associated to graphs, Proc. Amer. Math. Soc. 132 (2004), 1787--1795.

  45. A unified approach to Exel-Laca algebras and C*-algebras associated to graphs, J. Operator Theory 50 (2003), 345--368.

  46. Simplicity of ultragraph algebras, Indiana Univ. Math. J. 52 (2003), 901--926.

  47. Computing Ext for graph algebras, J. Operator Theory 49 (2003), 363--387.

  48. The ordered K0-group of a graph C*-algebra, C. R. Math. Acad. Sci. Soc. R. Can. 25 (2003), 19--25.

  49. Computing K-theory and Ext for graph C*-algebras (with Doug Drinen), Illinois J. Math. 46 (2002), 81--91.

  50. Ext classes and embeddings for C*-algebras of graphs with sinks, New York J. Math. 7 (2001), 233--256.



Books and Monographs





Conference Proceedings and Non-Refereed Publications





Invited Addresses and Workshops





Presentations and Contributed Talks





Grants and External Funding





Funding to Support Students





Conferences Organized




Postdocs Supervised



Ph.D. Students Supervised



Ph.D. Defense Committees




Editor for Advances in Operator Theory

Spring 2016 -- Spring 2019




Teaching



Being a Difference Award for Ethical Leadership, UCCS Campus

Spring 2022


25-Year Anniversary Award from Gustavus Adolphus College

Spring 2022


MAA Haimo Award for Distinguished Teaching of Mathematics

Spring 2020


MAA Distinguished College and University Teaching of Mathematics Award, Texas Section

Spring 2019


AMS Award for Mathematics Programs that Make a Difference

Spring 2018


Phi Beta Kappa Award for Engaging Broader Audiences

Spring 2018


University Teaching Excellence Award: Community Service Category

Spring 2016


NSM John C. Butler Excellence in Teaching Award

Spring 2015


Courses Taught




Courses Developed





Independent Studies and Masters Tutorials Supervised




Undergraduate Research Supervised

University of Houston: College of William & Mary: University of Iowa:
The following publications have resulted from the undergraduate research I have supervised:




Circles and Pairs, Founder and Director

Fall 2021 -- present

AMS Graduate Student Chapter, Founder and Faculty Advisor

Fall 2021 -- present



CHAMP, Founder and Director

Fall 2013 -- Spring 2019



Math Alliance, Mentor

Fall 2009 -- Spring 2019



Gulf States Math Alliance, Organizer and Webmaster

Fall 2013 -- Spring 2020



AMS Graduate Student Chapter, Founder and Faculty Advisor

Fall 2013 -- Spring 2019



Pi Mu Epsilon, Faculty Advisor

Fall 2008 -- Spring 2018



AMS Project NExT Fellow

2003 -- 2004



Teaching of Mathematics Seminar, Dartmouth College

Summer 1999



Service


Service to the Profession


Editorial Board for MAA FOCUS

January 2022--present

Reviewer for the Goldwater Scholarship

February 2020--present

Wikipedia Fellow

Fall 2019

Reviewer for National Science Foundation

February 2019

AMS Committee on the Profession, subcommittee member

August 1, 2018 -- July 31, 2019


AMS Arnold Ross Lecture Series Committee

February 1, 2016 -- January, 31 2019


Project NExT Consultant

2014 -- 2015


Scholarly Reviews



Journal Referee



Article Reviewer for Mathematical Reviews and MathSciNet

2003 -- 2014




Service to Department, College, and University

      (at University of Colorado Colorado Springs)


Department Committees



University Committees





Service to Department, College, and University

      (at University of Houston)


Department Committees



College Committees



University Committees




Fellow of the UH Honors College

Spring 2016


"Russia's Revolutionary Mathematics", Invited Talk

February 2017




Service to the Community


KIPP: Houston STEM Advisory Board, member

Spring 2016 -- Spring 2017



Honors, Awards, and Memberships



Honors and Awards



Memberships