Talks & Posters

2023-Jan., 0–1 matrices whose inverses are matrices all of whose entries are of the same modulus, 2023 Joint Mathematics Meetings (AMS Special Session on If You Build It They Will Come: Presentations by Scholars in the National Alliance for Doctoral Studies in the Mathematical Sciences), Boston, MA, USA.

2019-March, The almost-principal minors and ap-rank of symmetric matrices, 50^th Southeastern International Conference on Combinatorics, Graph Theory and Computing (SEICCGTC) (Special Session on Combinatorial Matrix Theory), Florida Atlantic University, Boca Raton, FL, USA.

2019-Jan., The almost-principal minors and ap-rank of symmetric matrices, 2019 Joint Mathematics Meetings (AMS Special Session on If You Build It They Will Come: Presentations by Scholars in the National Alliance for Doctoral Studies in the Mathematical Sciences), Baltimore, MD, USA.

2017-Dec., The epr-sequence over a field of characteristic 2, Matrix Theory Seminar, Georgia State University, Atlanta, GA, USA.

2017-July, The signed epr-sequence, 21^st Conference of the International Linear Algebra Society (Mini-symposium on Combinatorial Matrix Theory), Iowa State University, Ames, IA, USA.

2017-July, The sepr-sequence of a Hermitian matrix, Special Western Canada Linear Algebra Meeting (WCLAM), Banff International Research Station (BIRS), Banff, Alberta, Canada.

2016-Oct., The epr-sequence over a field of characteristic 2, AMS Fall Central Sectional Meeting (Special Session on Combinatorial Matrix Theory), University of St. Thomas–Minnesota, Minneapolis, MN, USA.

2016-April, Classification of families of pr- and epr-sequences, AMS Spring Central Sectional Meeting (Special Session on Matrix and Operator Theory), North Dakota State University, Fargo, ND, USA.

2016-March, Classification of families of pr- and epr-sequences, 47^th Southeastern International Conference on Combinatorics, Graph Theory and Computing (SEICCGTC) (Special Session on Combinatorial Matrix Theory), Florida Atlantic University, Boca Raton, FL, USA.

2018-May, The qpr-sequence, Western Canada Linear Algebra Meeting (WCLAM), Washington State University, Pullman, WA, USA.

2018-March, The quasi principal rank characteristic sequence, XXXIII Seminario Interuniversitario de Investigación en Ciencias Matemáticas (SIDIM), University of Puerto Rico–Río Piedras, San Juan, PR, USA.

2017-March, The signed enhanced principal rank characteristic sequence, XXXII Seminario Interuniversitario de Investigación en Ciencias Matemáticas (SIDIM), University of Puerto Rico–Ponce, Ponce, PR, USA.

2017-Jan., The epr-sequence over a field of characteristic 2, 2017 Joint Mathematics Meetings, Atlanta, GA, USA.

2016-July, Classification of families of pr- and epr-sequences, 20^th Conference of the International Linear Algebra Society, Katholieke Universiteit Leuven, Leuven, Belgium.

2016-May, Classification of families of pr- and epr-sequences, Western Canada Linear Algebra Meeting (WCLAM), University of Manitoba, Winnipeg, MB, Canada.

2015-Oct., The principal rank characteristic sequence and the enhanced principal rank characteristic sequence, SIAM Conference on Applied Linear Algebra, Atlanta, GA, USA.

2012-July, Classification of potentially eventually exponentially positive sign patterns of small order, 2012 SIAM Annual Meeting, Minneapolis, MN, USA.

2022-Nov., Hermitian matrices and the signs of their principal minors, CBB (Colby, Bates, Bowdoin) Seminar, Colby College, Waterville, ME, USA.

2019-Nov., On the principal minors of Hermitian matrices, Discrete Mathematics Seminar, University of Victoria, Victoria, BC, Canada.

2019-Jan., The almost-principal minors and ap-rank of symmetric matrices, Linear Algebra/Algebra Seminar, Auburn University, Auburn, AL, USA.

2018-Nov., The qpr-sequence, Linear Algebra/Algebra Seminar, Auburn University, Auburn, AL, USA.

2017-Sept., A new principal rank characteristic sequence, Linear Algebra/Algebra Seminar, Auburn University, Auburn, AL, USA.

2017-June, Principal rank characteristic sequences, Linear Algebra Seminar , Auburn University, Auburn, AL, USA.

2010-Oct., (joint with Rana Haber) Classification of potentially eventually exponentially positive sign patterns of small order, 2010 SACNAS National Conference, Anaheim, CA, USA.

2010-Feb., Two strain competition: Trypanosoma cruzi, NEA Science Day, University of Puerto Rico–Mayagüez, Mayagüez, PR, USA.

2009-Oct., Two strain competition: Trypanosoma cruzi, 2009 SACNAS National Conference, Dallas, TX, USA.

2009-Sept., Two strain competition: Trypanosoma cruzi, Ana G. Méndez University System (AGMUS) XX Undergraduate Research Symposium, San Juan, PR, USA.