| 1994 |
The characteristic polynomials of hyperplane arrangements INTERNATIONAL CONFERENCE ON ARRANGEMENTS OF HYPERPLANES Marseilles, FRANCE. Signed graphs MIGHTY XXIII, Kalamazoo, MI Subposets of Boolean algebras MICHIGAN STATE UNIVERSITY, Lansing, MI |
| 1995 |
Subposets of Boolean algebras UNIVERSITY of MICHIGAN, Ann Arbor, MI The A, B and C in hyperplane arrangements UNIVERSITY OF TEXAS AT EL PASO, El Paso, TX. |
| 1996 |
Signed graphs and subspace arrangements WESTERN MICHIGAN UNIVERSITY, Kalamazoo, MI. The Wiener polynomial of a graph EIGHTH QUADRENNIAL INTERNATIONAL CONFERENCE ON GRAPH THEORY, COMBINATORICS, ALGORITHMS, AND APPLICATIONS Western Michigan University, Kalamazoo, MI. |
| 1997 |
Arithmetic properties of generalized Euler numbers ANNUAL MEETING OF THE AMERICAN MATHEMATICAL SOCIETY, San Diego, CA. Truncated Boolean algebras as subspace arrangements TWENTY-EIGHTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL. The characteristic polynomials of interpolations between Coxexter arrangements CENTRAL SECTIONAL MEETING OF THE AMERICAN MATHEMATICAL SOCIETY, Special Session on Algebraic Combinatorics Wayne State University, Detroit, MI. Starfree biclique decompositions of complete graphs MIGHTY XXVII, University of Wisconsin, Oshkosh, WI Subspace arrangements and signed graphs THE FIRST CONFERENCE OF YOUNG CHINESE MATHEMATICIANS IN NORTH AMERICA University of California at Berkeley, Berkeley, CA. The geodetic number of a graph MIGHTY XXVIII, Eastern Michigan University, MI. |
| 1998 |
On the planarity of jump graphs MIGHTY XXX, Ball Sate University, IN. Geodetic graphs and geodetic numbers in graphs WINNIPEG COMBINATORICS MATHEMATICS CONFERENCE University of Winnipeg, Winnipeg, CANADA Graph representations by means of partitions and distance TWENTY-NINTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL. |
| 1999 |
Stratification and domination in graphs MIGHTY XXXII, Indiana-Purdue University at Fort Wayne, MI. Convexity in Graphs MICHIGAN SECTION OF THE AMS ANNUAL MEETING, Eastern Michigan University, MI. How large can the domination numbers of a graph be? MIGHTY XXXI, Oakland University, MI. The Steiner number and Steiner sets in graphs THIRTIETH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL. |
| 2000 |
On the planarity of iterated jump graphs FIFTEENTH CLEMSON MINI CONFERENCE, Clemson University, Clemson, SC. Radio labelings of graphs NINTH QUADRENNIAL INTERNATIONAL CONFERENCE ON GRAPH THEORY, COMBINATORICS, ALGORITHMS, AND APPLICATIONS Western Michigan University, Kalamazoo, MI. Don't touch that dial! MICHIGAN SECTION OF THE MAA ANNUAL MEETING, Central Michigan University, MI. On the metric dimension of a graph THIRTY-FIRST SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL. Full domination in graphs ANNUAL MEETING OF THE AMERICAN MATHEMATICAL SOCIETY, Special Session on Graph Theory, Washington, DC |
| 2001 |
Full domination in graphs THIRTY-SECOND SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Baton Rouge, LA Divisor graphs MICHIGAN SECTION OF THE MAA ANNUAL MEETING, Hope College, MI. |
| 2002 |
Distance-Defined Subgraphs of a Graph THIRTY-THIRD SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL |
| 2003 |
Local Colorings of Graphs THIRTY-FOURTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL Homogeneous embeddings and stratified graphs MIGHTY XXXVII, Valparaiso University at Valparaiso, IN |
| 2004 |
Homogeneous embeddings and stratified graphs ANNUAL MEETING OF THE AMERICAN MATHEMATICAL SOCIETY, Phoenix, AZ Hamiltonian colorings of graphs THIRTY-FIFTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL On gamma-labelings of graphs MIGHTY XXXVIII, Western Kentucky University |
| 2005 |
Detectable colorings of graphs THIRTY-SIXTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL Domination and stratification in graphs FUJIAN NORMAL UNIVERSITY, Fujian, P. R. China Distance in graphs - Taking the long view FUZHOU UNIVERSITY, Fuzhou, P. R. China |
| 2006 |
On Hamiltonian Walks in Graphs ANNUAL MEETING OF THE AMERICAN MATHEMATICAL SOCIETY, San Antonio, TX. Detectable colorings of graphs SRINAKHARINWIROT UNIVERSITY, Bangkok, Thailand Irregular colorings of graphs PEKING UNIVERSITY, Beijing, P. R. China Distance in graphs TSINGHUA UNIVERSITY, Beijing, P. R. China |
| 2007 |
From edge coloring to vertex coloring THIRTY-EIGHTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL Radio colorings of graphs PEKING UNIVERSITY, Beijing, P. R. China From a banquet seating problem to a graph coloring problem YAN TAI UNIVERSITY, Yan Tai, P. R. China |
| 2008 |
Hamiltonian colorings of graphs THIRTY-NINTH SOUTHEASTERN INTERNATIONAL CONFERENCE ON COMBINATORICS,GRAPH THEORY AND COMPUTING, Boca Raton, FL |