Welcome to my
presentations page.
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Selected
presentations
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2025
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Short-length mesh pattern
distributions, Invited presentation, Postgraduate
Combinatorial Conference PCC 2025, May 2, 2025
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What is a good bijection? A
case study on pattern-avoiding permutations, Math Department
Colloquium, SUSTech, Shenzhen, China, April 17, 2025 |
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Naturally labelled posets and a hierarchy
related to interval orders, Shenzhen International Center
for Mathematics Colloquium, Shenzhen, China, April 9, 2025 |
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1-11-representable graphs,
workshop "Sequences in London", City, University of London,
UK, February 6, 2025 |
2024
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Human-verifiable proofs in
the theory of word-representable graphs, The 8th Xi'an
International Workshop on Graph Theory and Combinatorics,
Xi'an, China, June 30, 2024
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Singleton mesh patterns in
multidimensional permutations, Invited presentation at
Scottish Combinatorics Meeting, University of St Andrews, St
Andrews, UK, May 28, 2024 |
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Singleton mesh patterns in multidimensional
permutations, Distinguished Colloquium, Harbin Institute of
Technology, Harbin, China, May 17, 2024 |
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Differential equations and
permutation patterns, Seminar on Combinatorial Theory and
Algorithms, Academy of Mathematics and System Science,
Chinese Academy of Science (Organizer: Shaoshi Chen),
Beijing, China, May 13, 2024 |
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What is a good bijection? A case study on
pattern-avoiding permutations, Chern Shing-Shen Class
Lecture, School of Mathematical Sciences, Nankai University,
Tianjin, China, May 9, 2024 |
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Singleton mesh patterns in
multidimensional permutations, Groups and Combinatorics
Seminar, University of Western Australia, Perth, Australia,
March 1, 2024 |
2023
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Singleton mesh patterns in
multidimensional permutations, Shenzhen International Center
for Mathematics Colloquium, Shenzhen, China, November 14,
2023 |
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Singleton mesh patterns in
multidimensional permutations, Seminar on Combinatorial
Theory and Algorithms, Academy of Mathematics and System
Science, Chinese Academy of Science (Organizer: Shaoshi
Chen), Beijing, China, October 31, 2023 |
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Naturally labelled posets
and a hierarchy related to interval orders, Applied Algebra
and Optimization Research Center (AORC) Special Invited
Talk, Sungkyunkwan University, Korea, June 1, 2023 |
2022
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Some aspects of
semi-transitively orientable graphs, Online 2nd School on
Graph Theory (3-6 October 2022), University of Johannesburg,
South Africa, October 3, 2022 |
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The symbolic method, differential equations
and permutation patterns, Invited talk at the virtual
workshop on combinatorial species, operads, Riordan arrays
and related topics, hosted by the Applied Algebra and
Optimization Research Center (AORC), Sungkyunkwan
University, Korea, February 23, 2022 |
2021
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Distribution of mesh
patterns, 28th British Combinatorial Conference (BCC), July
7, 2021
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2020
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On partially ordered
patterns of length 4 and 5 in permutations, 2020 Permutation
Patterns Virtual Workshop, June 30, 2020 |
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On k-11-representable graphs, 2020
Permutation Patterns Virtual Workshop, June 30, 2020 |
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Uniform distribution of
resources, Invited talk at Neuroscience and Complex Systems
Networking Event, Scottish Universities Insight Institute,
Glasgow, UK, March 9, 2020 |
2019
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Computational challenges in
the theory of word-representable graphs, Invited lecture at
Algorithms and Software for Discrete Computational
Mathematics, CoDiMa Workshop 2019, The University of
Manchester, May 24, 2019 |
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Equidistributions on planar maps via
involutions on description trees, Invited talk at the
One-Day Meeting in Combinatorics, Sungkyunkwan University,
Korea, April 8, 2019
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2018
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Encoding graphs by words
and patterns, Invited talk at the 2nd IMA Conference on
Theoretical and Computational Discrete
Mathematics, University of Derby, Derby, UK, September
14, 2018 |
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New directions of research on Riordan graphs
and Riordan matrices, Invited talk at the 5th
International Conference on Riordan Arrays and Related
Topics (5RART), Busan, Korea, June 29, 2018 |
2017
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Introduction to the theory
of word-representable graphs, Invited lecture at the One-Day
Meeting in Combinatorics, Sungkyunkwan University,
Korea, September 13, 2017 |
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A comprehensive introduction to the theory of
word-representable graphs, Invited Speaker at the 21st
International Conference on Developments in Language
Theory (DLT2017), University of Liege, Liege, Belgium,
August 7, 2017 |
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Crown graphs and their
representation numbers, 26th British Combinatorial
Conference, Glasgow, UK, July 3, 2017 |
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Universal partial words, Invited talk at the
2017 AORC Open School on Combinatorial Methods in the
Analysis of Algorithm and Data Structures, Sungkyunkwan
University, Korea, February 22, 2017 |
2015
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Encoding graphs via
pattern-avoiding words, Invited talk at Scottish
Combinatorics Meeting, University of Glasgow, Glasgow,
UK, April 29, 2015 |
2014
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Word-representable graphs
and permutation patterns, Plenary talk at Permutation
Patterns Conference 2014, East Tennessee State
University, Johnson City, TN, USA, July 8, 2014. |
2013
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Two involutions on
description trees and their applications, Colloquium
talk, University of California, San Diego, January 17,
2013 |
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Crucial and bicrucial permutations with
respect to arithmetic monotone patterns, Invited talk at the
AMS Special Session on Patterns in Permutations and Words,
at San Diego AMS-MAA Joint Meetings, San Diego, January 12,
2013 |
2012
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On interval orders and
related objects, Colloquium talk, Department of
Mathematics, California Polytechnic State University,
San Luis Obispo, February 17, 2012 |
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Interval orders and related combinatorial
objects, Colloquium talk, University of California, San
Diego, February 16, 2012 |
2011
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On graphs representable by
words, Pure Maths Colloquium, University of St Andrews,
St Andrews, UK, November 24, 2011 |
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On (2+2)-free posets and equinumerous
objects, DIMAP Workshop on Combinatorics and Graph
Theory, University of Warwick, UK, April 4, 2011 |
2010
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Enumerating (2+2)-free
posets by the number of minimal elements and other
statistics, Poster at the 22nd International Conference on
Formal Power Series & Algebraic Combinatorics, San
Francisco State University, San Francisco, USA, August 2-6,
2010 |
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Enumerating (2+2)-free posets by the number of
minimal elements and other statistics, Invited talk at
the AMS Special Session on Enumerative Combinatorics at San
Francisco AMS-MAA Joint Meetings, San Francisco, January 15,
2010 |
2009
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Crucial words for abelian
powers, 13th International Conference on Developments
in Language Theory (DLT 09), Universitat Stuttgart,
Germany, July 2, 2009 |
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(2+2)-free posets, ascent sequences, regular
linearized chord diagrams, and pattern avoiding
permutations, Special Discrete Mathematics
Seminar, University of California, Berkeley, March 18,
2009 |
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Restricted permutations and
beta(1,0)-trees, Combinatorics Seminar, California
Institute of Technology, Pasadena, February 5, 2009 |
2008
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Counting ordered patterns
in words generated by morphisms, 2nd
International Conference on Language and Automata Theory and
Applications (LATA 2008), Tarragona, Spain, March 18,
2008 |
2007
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Generalized pattern avoidance, beta(1,0)-trees, and
two-stack sortable permutations, Permutation Patterns
Conference 2007, University of St Andrews, St Andrews,
Scotland, UK, June 12, 2007 |
2006
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Universal cycles and
combinatorial objects, Colloquium Lecture, University
of Kentucky, Lexington, November 9, 2006 |
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Classifying descents according to equivalence
mod k, Permutation Patterns Conference
2006, Reykjavik University, Reykjavik, Iceland, June
12, 2006 |
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An introduction to
permutation patterns, The second ICE-TCS
Symposium, University of Iceland, Reykjavik, Iceland,
May 31, 2006 |
2004
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Independent sets on
path-schemes, Conference on Discrete Analysis and Operations
Research (DAOR'2004), Sobolev Institute of Mathematics,
Novosibirsk, Russia, July 1, 2004 |
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Numerical characteristics of unavoidable
sets, The Combinatorics Seminar at California Institute
of Technology, Pasadena, March 4, 2004 |
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The Dragon curve, the Peano
curve, and combinatorics on words, PIC Special Research
Seminar at University of California, Los Angeles, March
3, 2004 |
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On a common feature in certain sequences, The
Combinatorics Seminar, University of Illinois at
Urbana-Champaign, Urbana, February 24, 2004 |
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On some famous sequences,
The Combinatorics Seminar at Massachusetts Institute of
Technology, Cambridge, February 20, 2004 |
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Non-overlapping patterns
in permutations, The Combinatorics
Seminar, University of Pennsylvania, Philadelphia,
February 19, 2004 |
2002
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Partially Ordered
Generalized Patterns, Poster at the 14th International
Conference on Formal Power Series & Algebraic
Combinatorics (FPSAC'02) at University of Melbourne,
Melbourne, Australia, July 8-12, 2002 |
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Simultaneous Avoidance of
Generalized Patterns, Workshop "Algebraic
Combinatorics" at Royal Institute of Technology,
Stockholm, Sweden, May 21-22, 2002 |
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Multi-Avoidance of
Generalized Patterns, The 48th Seminaire Lotharingien
de Combinatoire at Domaine Saint-Jacques, France, 2002 |
2000
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On non-existence of an
iterative morphism which defines an Arshon sequence,
Swedish-Russian conference "Combinatorics, Dynamics,
Probabilities" at Royal Institute of Technology,
Stockholm, Sweden, October 3-7, 2000 |