## Education

- Ph.D., Mathematics, University of Wyoming
- M.S., Mathematics, Kyungpook National University, South Korea
- B.S., Secondary Math Education, Kyungpook National University, South Korea

## Primary Areas:

- Combinatorial Matrix Theory, Complex Network Theory, and Data Analytics and Quantum Mechanics/Computing

**Professional Experience**

Professor, Minnesota State University, Mankato, August 2013 to present

Research Fellow, Minnesota Modeling and Simulation Center, Fall 2010 to present

Research Graduate Faculty, Minnesota State University, Mankato, August 2007 to present

Director, Center for Excellence in Scholarship and Research (CESR), July 2011 to June 2014

Associate Professor, Minnesota State University, Mankato, August 2010 to July 2013

Assistant Professor, Minnesota State University, Mankato, August 2006 to June 2010

Postdoctoral Fellow, University of Victoria, Canada, September 2005 to July 2006

Teaching Assistant, University of Wyoming, September 2000 to August 2005

Instructor, Dongyang University, Fall 1999

Teacher, Ohsung High School, Summer 1999

Korean Air Force, 1989-1992

**Publications**

• I.-J. Kim, K. Choe, and S. Wolbert, “Methodology for mapping cryptocurrency in the financial market,” *International Journal of Business Research* 22 (2022), 5-12.

• I.-J. Kim, K. Choe, and S. Wolbert, “Mapping cryptocurrency in the financial market,” *Journal of Academy of Business and Economics* 22 (2022), 16-25.

• I.-J. Kim and K. Choe, “Relationship between Crude Oil Prices and the Stock Market: Before and After the Lifting of U.S. Crude Oil Export Ban,” *International Journal of Business Research* 20 (2020), 13-20.

• I.-J. Kim, D.-Y. Shin, and K. Choe, “Application of Dimension Reduction Methods to Dow Jones Industrial Average,” *Journal of Academy of Business and Economics* 19 (2019), 59-68.

• B. Eastman, I.-J. Kim, B.L. Shader, and K.N. Vander Meulen, Corrigendum to “Companion matrix patterns” [*Linear Algebra and it Applications* 463 (2014), 255-271], *Linear Algebra and its Applications* 538 (2018), 225-227.

• I.-J. Kim, B. Shader, and K. Vander Meulen, “Spectrally arbitrary pattern extension,” *Linear Algebra and its Applications* 517 (2017), 120-128.

• I.-J. Kim and J.-W. Park, “Squarable sign patterns,” *Advanced Studies in Contemporary Mathematics *25 (2015), 557-564.

• I.-J. Kim, B. Barthel, S.-C. Kim, ad D.-Y. Shin, “Creating a customer satisfaction index from a survey instrument,” *Journal of Academy of Business and Economics* 15 (2015), 123-128.

• D.-Y. Shin, J. Kalinowski, S.-C. Kim, and I.-J. Kim, “Maximizing the impact of improvement efforts on customer satisfaction,” *The Journal of Applied Business Research* 31 (2015), 1005-1013.

• B. Eastman, I.-J. Kim, B.L. Shader, and K.N. Vander Meulen, Companion matrix patterns, Linear Algebra and its Applications 463 (2014), 255-272.

• I.-J. Kim, B. Barthel, J.L. Dobmeier, S.-C. Kim, Y.-Y. Park, D.-Y. Shin, and J.R. Tait, Network analysis for active and passive propagation models, Networks 63 (2014), 160-169.

• I.-J. Kim and B.L. Shader, Unordered multiplicity lists of a class of binary trees, Linear Algebra and its Applications 438 (2013), 3781-3788.

• M.S. Cavers, C. Garnett, I.-J. Kim, D.D. Olesky, P. van den Driessche, and K.N. Vander Meulen, Techniques for identifying inertially arbitrary patterns, Electronic Journal of Linear Algebra 26 (2013), 71-89.

• I.-J. Kim, Algorithmic Proof of MaxMult(T)=p(T), Communications of the Korean Mathematical Society 27 (2012), 665-668.

• I.-J. Kim, B. Barthel, S.-C. Kim, H. Nishina, and D.-Y. Shin, On the development of a satisfaction survey instrument using PageRank centrality, Journal of Academy of Business and Economics 12 (2012), 134-143.

• L.M. DeAlba, J. Grout, I.-J. Kim, S.J. Kirkland, J.J. McDonald and A. Yielding, Minimum rank of powers of trees, Electronic Journal of Linear Algebra 23 (2012), 151-163.

• I.-J. Kim, S.-C. Kim, D.-Y. Shin and J. Wagner, Analysis on propagations in active and passive network models, Proceedings of 2011 International Academy of Business and Economics (IABE), 115-118.

• I.-J. Kim and C. Waters, Symmetric sign patterns with maximal inertias, Czechoslovak Mathematical Journal 60 (2010), 101-104.

• A. Berman, M. Catral, L.M. DeAlba, A. Elhashash, F. Hall, L. Hogben, I.-J. Kim,

D.D. Olesky, P. Tarazaga, M.J. Tsatsomeros and P. van den Driessche, Sign patterns that allow eventual positivity, Electronic Journal of Linear Algebra 19 (2010), 108-120.

• C. Erickson and I.-J. Kim, On nilpotence indices of sign patterns, Communications of the Korean Mathematical Society 25 (2010), 11-18.

• Y.-F. Chen, H.-L. Fu, I.-J. Kim, E. Stehr and B. Watts, On the largest eigenvalues of bipartite graphs which are nearly complete, Linear Algebra and its Applications 432 (2010), 606-614.

• I.-J. Kim and B.L. Shader, Nonsingular acyclic matrices, Linear and Multilinear Algebra57 (2009), 399-407.

• I.-J. Kim, D.D. Olesky and P. van den Driessche, Critical sets of inertias for matrix patterns, Linear and Multilinear Algebra 57 (2009), 293-306.

• I.-J. Kim, D.D. Olesky, B.L. Shader, P. van den Driessche, H. van der Holst and K.N. Vander Meulen, Generating potentially nilpotent full sign patterns, Electronic Journal of Linear Algebra18 (2009), 162-175.

• I.-J. Kim and B.L. Shader, Smith Normal Form and acyclic matrices, Journal of Algebraic Combinatorics 29 (2009), 63-80.

• I.-J. Kim and B.L. Shader, Sign patterns that require a positive or nonnegative left inverse, Electronic Journal of Linear Algebra 17 (2008), 209-218.

• I.-J. Kim and B.L. Shader, On Fiedler- and Parter-vertices of acyclic matrices, Linear Algebra and its Applications 428 (2008), 2601-2613.

• I.-J. Kim and B.L. Shader, Classification of trees each of whose associated acyclic matrices with distinct diagonal entries has distinct eigenvalues, Bulletin of the Korean Mathematical Society 28 (2008), 95-99.

• I.-J. Kim, D.D. Olesky, B.L. Shader and P. van den Driessche, Sign patterns that allow a positive or nonnegative left inverse, SIAM J. Matrix Anal. Appl. 29 (2007), 554-565.

• I.-J. Kim, D.D. Olesky and P. van den Driessche, Inertially arbitrary sign patterns with no nilpotent realization, Linear Algebra and its Applications 421 (2007), 264-283.

• I.-J. Kim, J.J. McDonald, D.D. Olesky and P. van den Driessche, Inertias of zero-nonzero patterns, Linear and Multilinear Algebra 55 (2007), 229-238.

• M.S. Cavers, I.-J. Kim, B.L. Shader and K.N. Vander Meulen, On determining minimal spectrally arbitrary patterns, Electronic Journal of Linear Algebra 13 (2005), 240-248.

**Student Supervision**

• Michael Schaefer, M.S., Summer 2022

• Ammishaddai B. Ogyiri, M.S., Spring 2022

• Jesse J. LaPorte, M.A., Summer 2018

• Danielle Dobie, M.A., Spring 2016

• Jordan Tait, M.A., Fall 2014

• Brian Barthel, M.A., Spring 2013

• Joe Wagner, Undergraduate Research Conference, April 2011

• Moyang Chen, Undergraduate Research Conference, April 2011

• Nicholas Compton, Undergraduate Research Conference, April 2011

• Jordan Tait, Undergraduate Research Conference, April 2011 and 2012

• Brian Barthel, Undergraduate Research Conference, April 2010

• Craig Erickson, M.A., Summer 2009

• Lucas Kramer, M.A., Summer 2009

• Eric Hanson, Undergraduate Research Conference, April 2009

• Steven Reller, M.A., Summer 2008

• Brendon Watts (West high school, Mankato), Undergraduate Research Conference, April 2008

**Recent Presentations**

•February 10, 2021: “Tutorial on Network Data Analysis”Math/Stats Colloquium,Minnesota State University, Mankato

•June 29- July 4, 2018: “Introduction to Data Analytics” Data Analytics Summer School, Daegu University, Daegu, South Korea

•December 20, 2017: “Stowage Decisions in Multizone Storage Systems” Pusan National University, Pusan, South Korea

•December 16, 2017 :“Some Problems in Retail Analytics”Korea-China International Conference on Matrix Theory and Application, AORC-IRCTMT Joint Meeting Sungkyunkwan University, Suwon, South Korea

•August 11, 2017: “On Mathematics for Industry” Pusan National University, Pusan, South Korea

•July 31-August 4, 2017: “Introduction to Data Analytics” Data Analytics Summer School, Daegu University, Daegu, South Korea

•December 21-23 2016: “Foundations of Data Analytics” Data Analytics Winter School, Sungkyunkwan University, Suwon, South Korea

•June 25,2016: “Data Analytics: of the People, by the People, for the People”Big Data Analytics Summer School, Jeju National University, South Korea

•April 16-17, 2016: “Matrix Theory in Data Science” American Mathematical Society (AMS)-Central Section Meeting, North Dakota State University, Fargo, ND

•December 18-29, 2015: “Seven Lectures on Foundations of Data Analytics”NIMS-SKKU MDA Winter School, National Institute for Mathematical Sciences (NIMS), South Korea

•July 14-24, 2015: “Matrix-based Data Analysis” Summer School at Sungkyunkwan University, Suwon, South Korea

• May 8, 2014: Math Teachers’ Circle, University of St. Thomas, St. Paul, MN; Classroom Scenarios of Mathematics Questions from Students

• April 25-26, 2014: MAA North Central Section Meeting, St. Cloud State University, St. Cloud, MN; Eventual Positivity and Data Analysis

• June 3-6, 2013: 2013 International Linear Algebra Society (ILAS) Meeting, Providence, RI; Creating a User-Satisfaction Index

• April 26-27, 2013: American Mathematical Society (AMS)-Central Section Meeting, Iowa State University, Ames, IA; Eventual Positivity in Multivariate Data Analysis

• October 16, 2012: 2012 International Academy of Business and Economics (IABE) Conference, Las Vegas, NV; On the development of a satisfaction survey instrument using PageRank centrality

• August 1-4, 2012: Invited Paper Session on Combinatorics and Matrices at the 2012 MAA MathFest, Madison, WI; Application of PageRank centrality to a survey instrument

• April 13-15, 2012: 2012 Circle on the Road Conference by MSRI, George Washington University, Washington DC; Logic Puzzles

• January 4-7, 2012: AMS special session on Matrices and Graphs at the Joint Mathematics Meetings, Boston, MA; Unordered multiplicity list of a class of binary trees

• June 16, 2011: REU (Research Experiences for Undergraduates) speaker at University of Wyoming; Graph partitioning and community detection

• June 3-5, 2011: Canadian Mathematical Society (CMS) Summer 2011 Meeting at the University of Alberta, Edmonton, Canada; Unordered Multiplicity Lists of Φ-binary trees

• April 15-16, 2011: Mathematical Association of America (MAA)-North Central Section Meeting at Carleton College, Northfield, MN; Path cover number and maximum corank of a tree

• March 19, 2011: Julia Robinson Mathematics Festival at University of Houston, TX; KenKen

• April 10-11, 2010: American Mathematical Society (AMS)-Central Section Meeting, Macalester College, St. Paul, MN; On nearly complete bipartite graphs

• February 1-5, 2010: Banff International Research Station (BIRS) Workshop on Theory and Applications of Matrices Described by Patterns, Banff, Canada; On eventual positivity

• December 16-20, 2009: AMS-Korean Mathematical Society (KMS) Joint Meeting, Ewha Woman's University, Seoul, Korea; On the largest eigenvalues of bipartite graphs which are nearly complete

• October 26-29, 2009: SIAM Conference on Applied Linear Algebra, Monterey, CA; On Nilpotence Indices of Sign Patterns

• August 12-14, 2009: Conference on Linear and Numerical Linear Algebra: Theory, Methods, and Applications at Northern Illinois University, DeKalb, IL; Compressed Sensing and Matrix Problems

• April 24-25, 2009: MAA-North Central Section meeting at Hamline University, St. Paul, MN; Symmetric Sign Patterns with Maximal Inertias

• March 10, 2009: Mathematics Department Colloquium at Iowa State University, Ames; On Potentially Nilpotent Sign Patterns

• January 5-8, 2009: AMS special session on Spectra of Matrix Patterns and Applications to Dynamical Systems at the Joint Mathematics Meetings in Washington DC; Low Rank Perturbations and Inertias of Full Symmetric Sign Patterns

• October 17-18, 2008: MAA-North Central Section meeting at Concordia College, Moorhead, MN; On Fiedler- and Parter-vertices of Trees

• September 12-13, 2008: Rocky Mountain Discrete Mathematics Days at University of Wyoming, WY; Structure Analysis of Acyclic Matrices by Special Vertices of Trees

• August 14-17, 2008: UKC-Applied and Pure Mathematics Symposium at San Diego, CA; Structure Analysis of Acyclic Matrices by Special Vertices of Trees

• April 25-26, 2008: MAA-North Central Section meeting at College of St. Benedict, MN; Inertias of Matrix Patterns