1) The 50th Anniversary Conference at The Department of Mathematics, Mechanics and Informatics, Hanoi University of Science, Vietnam 2006. Invited talk: "A conjecture of Bauer."
2) The 14th Midrasha Mathematicae: Probability and Geometry: The Mathematics of Oded Schramm, Jerusalem, Israel Dec 2009.
3) FPT Technology Center for Young Talents Seminar, Hanoi, Vietnam, May 2010. Invited talk: "Probabilities on Trees and Graphs."
4) Vietnam Education Foundation annual conferences 2009, 2010, 2011, 2012, 2013; poster presenter in Jan 3, 2013. Poster file
5) AMS Southeast Spring Sectional Meeting, University of Mississippi, Oxford, MS (March 1-3, 2013). Invited talk: "Enumeration of Hybrid Domino-lozenge Tilings."
6) Graduate Student Combinatorics Conference 2013, University of Minnesota, Minneapolis, MN (April 19-21, 2013). Invited talk: "Subgraph Replacements in Enumeration of Tilings." Slide
7) AMS Fall Southeastern Sectional Meeting, University of Louisville, Louisville, KY (October 5-6, 2013).
8) Combinatorics Seminar, Department of Mathematics, Indiana University (October 7, 2013). Talk title: "Enumeration of Hybrid Domino-Lozenge Tilings."
9) Combinatorics Seminar, Department of Mathematics, Indiana University (October 14, 2013). Talk title: "Proof of Blum's Conjecture on Hexagonal Dungeons." Slide
10) IMA Postdoc Show and Tell Seminar (September 16, 2014). Talk: "Exact enumeration of tilings". Poster: "Enumeration of tilings of quartered Aztec rectangles."
11) AMS Central Fall Section Meeting, University of Wisconsin-Eau Claire, Eau Claire, WI (September 20-21, 2014). Talk: "Proof of Blum's Conjecture on Hexagonal Dungeons."
12) IMA Thematic Year on Discrete Structures: Analysis and Applications (September 2014-June, 2015).
13) Combinatorics Seminar, Department of Mathematics, Indiana University (October 7, 2014). Talk: ``Enumeration of tilings of quartered Aztec rectangles." Slide
14) Combinatorics Seminar, School of Mathematics, University of Minnesota (December 05, 2014). Talk: "Proof of a generalization of Aztec diamond theorem." Slide
16) IMA postdoc seminar February 3, 2015. Talk: "Enumeration of lozenge tilings of a hexagon with holes on boundary." Slide
17) Central Spring Sectional Meeting, Michigan State University, East Lansing, MI (March 14-15, 2015). Talk: "Lozenge tilings of a hexagon with holes on boundary and plane partitions that fit in a special box."
18) Combinatorics Seminar, Department of Mathematics, Indiana University, (March 2015). Talk title: "Enumeration of lozenge tilings of a hexagon with a shamrock hole on boundary."
19) ICERM Workshop Limit Shapes (April 13-17, 2015).
20) Spring Western Sectional Meeting, University of Nevada, Las Vegas NV (April 18-19, 2015). Talk: "Enumeration of lozenge tilings of a hexagon with holes on boundary." Slides
21) 28th Cumberland Conference on Combinatorics, Graph Theory & Computing, University of South Carolina Columbia, SC (May 15-17,2015). Talk: "Lozenge tilings of hexagon with holes and plane partitions fitting in a special box."
23) 8th International Conference on Lattice Path Combinatorics and Applications, California State Polytechnic University, Pomona, CA (August 17-20, 2015). Talk: "Lozenge tilings of a hexagon with three holes."
24) IMA Postdoc Show and Tell (September 15, 2015). Talk: "Enumeration of tilings and related problems."
25) Combinatorics Seminar, Indiana University, Bloomington IN (October 6, 2015). Talk: "Proof of a conjecture of Kenyon and Wilson on semicontiguous minors."
26) 12th ALGECOM, University of Michigan, Ann Arbor MI (October 24, 2015). Talk: "Proof of a conjecture of Kenyon and Wilson on semicontiguous minors."
27) Algebra and Combinatorics Seminar, North Carolina State University, Raleigh NC (November 2, 2015). Talk: "Proof of a conjecture of Kenyon and Wilson about semicontiguous minors."
28) Combinatorics Seminar, University of Minnesota, Minneapolis MN (November 6, 2015) . Talk: "Proof of a conjecture of Kenyon and Wilson about semicontiguous minors. "
29) Integrability and Representation Theory Seminar, University of Illinois at Urbana-Champaign, IL (November 11, 2015). Talk: "Proof of a conjecture of Kenyon and Wilson about semicontiguous minors."
30) Combinatorics Seminar, University of California, Los Angeles CA (November 19, 2015). Talk: "Proof of a conjecture of Kenyon and Wilson about semicontiguous minors."
31) Colloquium Lecture, University of Nebraska-Lincoln, NE (January 20, 2016). Talk: "Tiling expression of minors."
32) Discrete Mathematics Seminar, University of British Columbia, Vancouver Canada (February 2, 2016). Talk: "Enumeration of lozenge tilings of a hexagon with three dents." Slides
33) Colloquium Lecture, University of British Columbia, Vancouver Canada (February 3, 2016). Talk: "Tiling expression of minors." Slides
34) Discrete Mathematics Seminar, University of Nebraska-Lincoln, NE (September 20, 2016). Talk: "Proof of a generalization of the Aztec diamond theorem."
35) AMS Central Sectional Meeting, University of St. Thomas, Minneapolis, MN (October 28-30, 2016). Talk: "Enumeration of domino tilings of a double Aztec rectangle." Slides
36) Discrete Mathematics Seminar, University of Nebraska-Lincoln, NE (September 20, 2016). Talk: "Proof of a generalization of the Aztec diamond theorem."
37) Midwest Combinatorics Conference, University of Minnesota, Minneapolis, MN (May 23-25, 2017). Talk: q-Enumeration of lozenge tilings.
38) Joint Mathematics Meeting 2018, San Diego, CA (January 10--13, 2018).
39) Geometry Seminar, Texas A&M University, College Station TX (Feb 9, 2018). Talk: "Tilings and More."
40) CombinaTexas 2018, Texas A&M University, College Station TX (Feb 10-11, 2018). Talk: "Tiling Enumeration of Hexagons with Central Holes."
41) SIAM Conference on Discrete Mathematics 2018, Denver, CO (June 4--8, 2018). Talk "More Duals of MacMahon's Theorem on Plane Partitions" Slide
42) Combinatory Analysis 2018 -- A Conference in Honor of George Andrews' 80th Birthday, Penn State University, State College, PA (June 21-24, 2018). Talk: "Cyclically Symmetric Lozenge Tilings of a Hexagon with Four Holes." Slide
43) FPSAC 2018, Dartmouth College, Hanover NH (July 16-20, 2018). Poster
44) Colloquium Lecture, University of Florida, Gainesville, FL (January 11, 2019). Talk: "Enumeration of Tilings and Related Problems."
45) CombinaTexas 2019, Texas A&M University, College Station TX (March 23-24, 2018). Talk: "Factorization Theorems for Tiling Enumerations of Regions with Holes."
46) Dimers in Combinatorics and Cluster Algebras, University of Michigan, Ann Arbor, MI August 10-14, 2020). Plenary Talk: Shuffling Tiling Phenomenon
47) CombinaTexas 2021, Texas A&M University, College Station TX (February 20-21, 2021, online). Plenary talk: Tilings of Semi-hexagons, Plane Partitions, Young Tableaux, and Classical Group Characters.
48) Student Cluster Algebra Seminar, University of Illinois Urbana- Champaign (March 31, 2022, online). Talk: Enumeration of tilings and Kuo condensation.
49) Combinatorics Seminar, University of Rochester (December 7, 2023). Talk: Enumeration of tilings and graphical condensation.
50) (Upcoming conference)Conference in honor of Jim Propp’s 64th Birthday, MIT (June 26–29, 2024). Invited Talk: TBD
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