He was an invited speaker at the 2015 Abel Symposium,<ref>{{Cite web|url=https://abelsymposium.no/2015|title=The Abel Symposium: 2015 symposium|website=abelsymposium.no}}</ref> and he is a founding member of the Algebras and Rings in Colorado Springs (ARCS) center.<ref>{{Cite web|url=https://arcs-center.org/members.html|title=ARCS — Members|website=arcs-center.org}}</ref> Tomforde has researched the related areas of [[graph C*-algebra]]s and [[Leavitt path algebra]]s. With Doug Drinen, he is co-creator of the [[Graph C*-algebra#Desingularization|Drinen-Tomforde desingularization]], often simply called desingularization.<ref>Ch.6 of Graph Algebras, Iain Raeburn, CBMS Regional Conference Series in Mathematics, 103. Published for the Conference Board of the Mathematical Sciences, Washington, DC; by the American Mathematical Society, Providence, RI, 2005. vi+113 pp. {{ISBN|0-8218-3660-9}}</ref> With [[Gene Abrams]], Tomforde has formulated the Abrams-Tomforde conjectures, and Abrams and Tomforde have verified certain special cases of the conjectures.<ref>Isomorphism and Morita equivalence of graph algebras, Gene Abrams and Mark Tomforde, Trans. Amer. Math. Soc. 363 (2011), no. 7, 3733-3767.</ref> Tomforde studied [[ultragraph C*-algebra]]s.<ref>A unified approach to Exel-Laca algebras and C*-algebras associated to graphs, Mark Tomforde, J. Operator Theory 50 (2003), no. 2, 345-368.</ref> Tomforde has also been active in organizing several conferences on graph C*-algebras and their generalizations, with the goal of
He was an invited speaker at the 2015 Abel Symposium,<ref>{{Cite web|url=https://abelsymposium.no/2015|title=The Abel Symposium: 2015 symposium|website=abelsymposium.no}}</ref> and he is a founding member of the Algebras and Rings in Colorado Springs (ARCS) center.<ref>{{Cite web|url=https://arcs-center.org/members.html|title=ARCS — Members|website=arcs-center.org}}</ref> Tomforde has researched the related areas of [[graph C*-algebra]]s and [[Leavitt path algebra]]s. With Doug Drinen, he is co-creator of the [[Graph C*-algebra#Desingularization| desingularization]], often simply called desingularization.<ref>Ch.6 of Graph Algebras, Iain Raeburn, CBMS Regional Conference Series in Mathematics, 103. Published for the Conference Board of the Mathematical Sciences, Washington, DC; by the American Mathematical Society, Providence, RI, 2005. vi+113 pp. {{ISBN|0-8218-3660-9}}</ref> With [[Gene Abrams]], Tomforde has formulated the Abrams-Tomforde conjectures, and Abrams and Tomforde have verified certain special cases of the conjectures.<ref>Isomorphism and Morita equivalence of graph algebras, Gene Abrams and Mark Tomforde, Trans. Amer. Math. Soc. 363 (2011), no. 7, 3733-3767.</ref> Tomforde studied [[ultragraph C*-algebra]]s.<ref>A unified approach to Exel-Laca algebras and C*-algebras associated to graphs, Mark Tomforde, J. Operator Theory 50 (2003), no. 2, 345-368.</ref> Tomforde has also been active in organizing several conferences on graph C*-algebras and their generalizations, with the goal of
bringing together analysts and algebraists to share ideas and collaborate.<ref>”Graph Algebras: Operator Algebras We Can See”, NSF-CBMS Regional Conference in the Mathematical Sciences, Principal Lecturer: Iain Raeburn, Organizers: Paul Muhly, David Pask, and Paul Muhly, University of Iowa, June 2004 {{citation|url=https://marktomforde.com/cv/img/2004CBMS/cbms.html|title=Conference Website}}</ref><ref>”Graph Algebras in Analysis and Algebra”, Special Session at the AMS/MAA Joint Mathematics Meetings, Organizers: Gene Abrams and Mark Tomforde, San Francisco, CA, January 2010 {{citation|url=http://jointmathematicsmeetings.org/meetings/national/jmm/2124_program_ss21.html|title=Special Session Website}}</ref><ref>”Graph Algebras: Bridges between graph C*-algebras and Leavitt path algebras”, 5-day workshop at the [[Banff International Research Station (BIRS)]], Main Organizer: Mark Tomforde, April 2013 {{citation|url=http://www.birs.ca/events/2013/5-day-workshops/13w5049|title=Workshop Website}}</ref><ref>”Classification of C*-algebras, Flow Equivalence of Shift Spaces, and Graph and Leavitt Path Algebras”, Principal Lecturer: Søren Eilers, Organizers: Gary Birkenmeier, Daniel Davis, P. W. Ng, Leonel Robert, and Mark Tomforde, University of Louisiana at Lafayette, May 2015 {{citation|url=https://userweb.ucs.louisiana.edu/~pwn1677/2015/2015GA.html|title=Conference Website}}</ref><ref>”Workshop on Cuntz-Pimsner Algebras”, Organizer: Mark Tomforde, University of Houston, December 2019 {{citation|url=https://marktomforde.com/cv/img/2019Workshop/2019workshop.html|title=Workshop Website}}</ref>
bringing together analysts and algebraists to share ideas and collaborate.<ref>”Graph Algebras: Operator Algebras We Can See”, NSF-CBMS Regional Conference in the Mathematical Sciences, Principal Lecturer: Iain Raeburn, Organizers: Paul Muhly, David Pask, and Paul Muhly, University of Iowa, June 2004 {{citation|url=https://marktomforde.com/cv/img/2004CBMS/cbms.html|title=Conference Website}}</ref><ref>”Graph Algebras in Analysis and Algebra”, Special Session at the AMS/MAA Joint Mathematics Meetings, Organizers: Gene Abrams and Mark Tomforde, San Francisco, CA, January 2010 {{citation|url=http://jointmathematicsmeetings.org/meetings/national/jmm/2124_program_ss21.html|title=Special Session Website}}</ref><ref>”Graph Algebras: Bridges between graph C*-algebras and Leavitt path algebras”, 5-day workshop at the [[Banff International Research Station (BIRS)]], Main Organizer: Mark Tomforde, April 2013 {{citation|url=http://www.birs.ca/events/2013/5-day-workshops/13w5049|title=Workshop Website}}</ref><ref>”Classification of C*-algebras, Flow Equivalence of Shift Spaces, and Graph and Leavitt Path Algebras”, Principal Lecturer: Søren Eilers, Organizers: Gary Birkenmeier, Daniel Davis, P. W. Ng, Leonel Robert, and Mark Tomforde, University of Louisiana at Lafayette, May 2015 {{citation|url=https://userweb.ucs.louisiana.edu/~pwn1677/2015/2015GA.html|title=Conference Website}}</ref><ref>”Workshop on Cuntz-Pimsner Algebras”, Organizer: Mark Tomforde, University of Houston, December 2019 {{citation|url=https://marktomforde.com/cv/img/2019Workshop/2019workshop.html|title=Workshop Website}}</ref>
