Identification
Personal identification
- Full name
- Erkko Tapio Lehtonen
Citation names
- Lehtonen, Erkko
Author identifiers
- Ciência ID
- 691A-7A0D-F3E5
- ORCID iD
- 0000-0002-9255-5876
- Google Scholar ID
- https://scholar.google.pt/citations?user=E6sStikAAAAJ&hl=en
- Researcher Id
- I-3591-2014
- Scopus Author Id
- 15065560400
Addresses
- Department of Mathematics, Khalifa University, -, P.O. Box 127788, Abu Dhabi, United Arab Emirates (Professional)
Websites
- http://n-ary.fi (Scholar)
Knowledge fields
- Exact Sciences - Mathematics - Pure Mathematics
Languages
Language | Speaking | Reading | Writing | Listening | Peer-review |
---|---|---|---|---|---|
Finnish (Mother tongue) | |||||
English | Proficiency (C2) | Proficiency (C2) | Proficiency (C2) | Proficiency (C2) | Proficiency (C2) |
French | Upper intermediate (B2) | Advanced (C1) | Advanced (C1) | Upper intermediate (B2) | Advanced (C1) |
German | Intermediate (B1) | Upper intermediate (B2) | Intermediate (B1) | Intermediate (B1) | Intermediate (B1) |
Swedish | Intermediate (B1) | Upper intermediate (B2) | Intermediate (B1) | Intermediate (B1) | Intermediate (B1) |
Portuguese | Beginner (A1) | Intermediate (B1) | Beginner (A1) | Elementary (A2) | Elementary (A2) |
Estonian | Beginner (A1) | Intermediate (B1) | Beginner (A1) | Beginner (A1) | Beginner (A1) |
Luxembourg | Beginner (A1) | Beginner (A1) | Beginner (A1) | Beginner (A1) | Beginner (A1) |
Education
Degree | Classification | |
---|---|---|
2019/06/26
Concluded
|
Doctor of Philosophy (Doktori fokozat (PhD))
Major in mathematics and computer sciences
Debreceni Egyetem, Hungary
|
|
2016/10/26 - 2018/07/09
Concluded
|
Doctor rerum naturalium habilitatus (Doctor)
Major in mathematics
Technische Universität Dresden Fachrichtung Mathematik, Germany
"Reconstruction of functions from minors" (THESIS/DISSERTATION)
|
|
2000/07/01 - 2007/11/14
Concluded
|
Doctor of Science (Tohtori)
Major in mathematics
Tampere University of Technology - Institute of Mathematics, Finland
"Operations on finite sets, functional composition, and ordered sets" (THESIS/DISSERTATION)
|
excellent |
1993/07/05 - 1998/10/30
Concluded
|
Master of Science (Master)
Major in engineering mathematics
Tampere University of Technology - Institute of Mathematics, Finland
"End-to-end data security solutions with GPRS" (THESIS/DISSERTATION)
|
with distinction |
Affiliation
Science
Category Host institution |
Employer | |
---|---|---|
2019/10/01 - 2022/08/12 | Postdoc (Research) | Universidade Nova de Lisboa Centro de Matemática e Aplicações, Portugal |
Universidade Nova Centro de Matemática e Aplicações, Portugal | ||
2015/09/01 - 2019/09/30 | Postdoc (Research) | Technische Universität Dresden Institut für Algebra, Germany |
Technische Universität Dresden Institut für Algebra, Germany | ||
2014/01/01 - 2015/08/31 | Postdoc (Research) | Universidade de Lisboa Faculdade de Ciências, Portugal |
Universidade de Lisboa Faculdade de Ciências, Portugal | ||
2009/01/01 - 2013/12/31 | Postdoc (Research) | University of Luxembourg Computer Science and Communications Research Unit, Luxembourg |
University of Luxembourg Computer Science and Communications Research Unit, Luxembourg | ||
2007/07/01 - 2008/12/31 | Visiting Researcher (Research) | University of Waterloo Department of Combinatorics and Optimization, Canada |
University of Waterloo Department of Combinatorics and Optimization, Canada | ||
2000/07/01 - 2008/12/31 | Research Assistant (Research) | Tampere University of Technology - Institute of Mathematics, Finland |
Tampere University of Technology - Institute of Mathematics, Finland |
Teaching in Higher Education
Category Host institution |
Employer | |
---|---|---|
2022/08/15 - Current | Assistant Professor (University Teacher) | Khalifa University, United Arab Emirates |
Projects
Grant
Designation | Funders | |
---|---|---|
2013/01/30 - 2013/02/02 | 85th Workshop on General Algebra
FNR/12/AM3/20
Other
Université du Luxembourg, Luxembourg
|
Fonds National de la Recherche
Concluded
|
2007/07/01 - 2008/12 | Operations on finite sets and partial orders
info:eu-repo/grantAgreement/AKA/120307/FI
University of Waterloo Department of Combinatorics and Optimization, Canada
|
Suomen Akatemia |
Outputs
Publications
Conference paper |
|
Journal article |
|
Thesis / Dissertation |
|
Activities
Oral presentation
Presentation title | Event name Host (Event location) |
|
---|---|---|
2024/02/08 | On clonoids of Boolean functions | 104th Workshop on General Algebra (AAA104)
South-West University "Neofit Rilski" (Blagoevgrad, Bulgaria)
|
2023/06/09 | Near-unanimity-closed minions of Boolean functions | 103rd Workshop on General Algebra (AAA103)
University of Tartu (Tartu, Estonia)
|
2023/03/24 | Associative spectra of graph algebras | 16th International Conference of Young Algebraists in Thailand (16th ICYAT-MJU)
Maejo University (Chiang Mai, Thailand)
|
2022/07/18 | Reconstructing Young tableaux | Encontro Nacional da Sociedade Portuguesa de Matemática (ENSPM 2022)
Sociedade Portuguesa de Matemática, Instituto Politécnico de Tomar (Tomar, Portugal)
|
2022/06/24 | On clonoids of Boolean functions | 102nd Workshop on General Algebra (AAA102)
University of Szeged (Szeged, Hungary)
|
2022/06/09 | Reflections and powers of multisorted minions | Honorary colloquium on the occasion of Reinhard Pöschel’s 75th birthday
Technische Universität Dresden (Dresden, Germany)
|
2022/01/05 | Associative spectra of groupoids | Finnish Mathematical Days 2022
Tampere University (Tampere, Finland)
|
2021/06/16 | Permutation groups and permutation patterns | Permutation Patterns 2021 Virtual Workshop
University of Strathclyde (Glasgow, United Kingdom)
|
2021/02/05 | On clonoids of Boolean functions | 100th Workshop on General Algebra (AAA100)
Jagiellonian University (Kraków, Poland)
|
2020/08/26 | Linearly definable classes of Boolean functions | Algebras, Graphs and Ordered Sets (ALGOS 2020)
Lorraine Research Laboratory in Computer Science and its Applications (Loria) (Nancy, France)
|
2020/02 | Associative spectra of graph algebras | 99th Workshop on General Algebra (AAA99)
Università degli Studi di Siena (Siena, Italy)
|
2019/03 | Associative spectra of graph algebras | 97th Workshop on General Algebra (AAA97)
Technische Universität Wien (Vienna, Austria)
|
2018/06 | Functions with a unique identification minor | 96th Workshop on General Algebra (AAA96)
Technische Universität Darmstadt (Darmstadt, Germany)
|
2018/02 | Minors of multisorted functions and reflections | 95th Workshop on General Algebra (AAA95)
Comenius University (Bratislava, Slovakia)
|
2017/06 | Reflection-closed varieties of multisorted algebras and minor identities II | 94th Workshop on General Algebra (AAA94) and 5th Novi Sad Algebraic Conference (NSAC 2017)
University of Novi Sad (Novi Sad, Serbia)
|
2017/02 | Patterns and minors of permutations | 93rd Workshop on General Algebra (AAA93)
Bern University of Applied Sciences (Bern, Switzerland)
|
2016/09 | Permutation classes closed under pattern involvement and composition | 54th Summer School on General Algebra and Ordered Sets (SSAOS 2016)
(Trojanovice, Czech Republic)
|
2016/05 | Permutation classes closed under pattern involvement and composition | 92nd Workshop on General Algebra (AAA92)
Czech University of Life Sciences (Prague, Czech Republic)
|
2016/02 | Reconstructing functions and unique identification minors | 91st Workshop on General Algebra (AAA91)
Masaryk University (Brno, Czech Republic)
|
2016/01 | Reconstructing functions from identification minors | Finnish Mathematical Days 2016
University of Turku (Turku, Finland)
|
2015/11 | Order of first occurrence and minors of functions | Colloquium on Combinatorics (KolKom 2015)
Technische Universität Ilmenau (Ilmenau, Germany)
|
2014/11 | Finite characterizability of equational classes of threshold functions | Algebra Workshop 2014 – 34 years of CAUL
Universidade de Lisboa (Lisbon, Portugal)
|
2014/07 | Reconstructing functions from identification minors | Workshop on Computational Algebra 2014
Universidade de Lisboa (Lisbon, Portugal)
|
2014/06 | Associativity, preassociativity, and string functions | 88th Workshop on General Algebra (AAA88)
Warsaw University of Technology (Warsaw, Poland)
|
2014/06 | Finite characterizability of equational classes of threshold functions | Algebras & Clones fest
Charles University (Prague, Czech Republic)
|
2013/06 | Reconstructing functions from identification minors | 4th Novi Sad Algebraic Conference (NSAC 2013)
University of Novi Sad (Novi Sad, Serbia)
|
2013/05 | Reconstructing functions from identification minors | 86th Workshop on General Algebra (AAA86)
Palacký University Olomouc (Olomouc, Czech Republic)
|
2012/11 | Reconstructing functions of several arguments from identification minors | Colloquium on Combinatorics (KolKom 2012)
Technische Universität Berlin (Berlin, Germany)
|
2012/06 | The arity gap, or on the effect of identification of arguments on the essential arity of functions | 1st Joint Conference of the Belgian, Royal Spanish and Luxembourg Mathematical Societies (BSL-2012)
University of Liège (Liège, Belgium)
|
2012/06 | Generalized entropy in algebras with neutral element and in inverse semigroups | 84th Workshop on General Algebra (AAA84)
Technische Universität Dresden (Dresden, Germany)
|
2012/05 | Gap vs. pag | IEEE 42nd International Symposium on Multiple-Valued Logic (ISMVL-2012)
The Multiple-Valued Logic Technical Committee of the IEEE Computer Society (Victoria, BC, Canada)
|
2012/03 | Generalized entropy in algebras with neutral element and in inverse semigroups | 83rd Workshop on General Algebra (AAA83)
University of Novi Sad (Novi Sad, Serbia)
|
2012/01 | The arity gap, or on the effect of variable identification on the essential arity of functions | Finnish Mathematical Days 2012
Lappeenranta University of Technology (Lappeenranta, Finland)
|
2011/06 | Partial orders and equivalences induced by clones, especially by Post's classes | Second International Conference on Order, Algebra, and Logics (OAL2.0)
Jagiellonian University (Kraków, Poland)
|
2011/05 | A survey on the arity gap | IEEE 41st International Symposium on Multiple-Valued Logic (ISMVL 2011)
The Multiple-Valued Logic Technical Committee of the IEEE Computer Society (Tuusula, Finland)
|
2011/03/25 | Partial orders induced by the clones of Boolean clique functions and hypergraph homomorphisms | Colloquium on Graph Theory & Applications
University of Luxembourg (Luxembourg, Luxembourg)
|
2011/02 | Embeddability of countable posets with finite principal ideals into partial orders induced by clones | 81st Workshop on General Algebra (AAA81)
Universität Salzburg (Salzburg, Austria)
|
2010/09 | Commuting polynomial functions over distributive lattices | Summer School on General Algebra and Ordered Sets (SSAOS 2010)
(Malenovice, Czech Republic)
|
2010/06 | Self-commuting lattice polynomial functions | BLAST 2010
University of Colorado at Boulder (Boulder, CO, United States)
|
2010/06 | Commuting polynomial functions over distributive lattices | International Conference on Algebras and Lattices ("Jardafest")
Charles University (Prague, Czech Republic)
|
2010/06 | Commuting polynomial functions over distributive lattices | International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems (IPMU 2010)
(Dortmund, Germany)
|
2010/05 | Classes of operations closed under permutation, cylindrification and composition | 40th International Symposium on Multiple-Valued Logic (ISMVL 2010)
The Multiple-Valued Logic Technical Committee of the IEEE Computer Society (Barcelona, Spain)
|
2010/01 | Galois theories for function algebras | Finnish Mathematical Days 2010
University of Jyväskylä (Jyväskylä, Finland)
|
2009/08 | Clones of Boolean clique functions and hypergraph homomorphisms | 3rd Novi Sad Algebraic Conference (NSAC 2009)
University of Novi Sad (Novi Sad, Serbia)
|
2009/06 | Reducts of Mal'cev's iterative algebra and preservation of generalized relations | 78th Conference on General Algebra (AAA78)
Universität Bern (Bern, Switzerland)
|
2009/03 | On the finite index property of clones | 77th Workshop on General Algebra (AAA77) & 24th Conference for Young Algebraists
Universität Potsdam (Potsdam, Germany)
|
2008/09 | The arity gap and generalizations of Swierczkowski's lemma | Summer School on General Algebra and Ordered Sets (SSAOS 2008)
Eduard Cech Center for Algebra and Geometry (Trešt, Czech Republic)
|
2008/08 | The arity gap of finite functions and generalizations of Swierczkowski's lemma | BLAST
University of Denver (Denver, CO, United States)
|
2008/05 | On the arity gap of finite functions: results and applications | International Conference on Relations, Orders and Graphs: Interaction with Computer Science (ROGICS '08)
(Mahdia, Tunisia)
|
2008/01 | Operations on finite sets, functional composition, and ordered sets | Finnish Mathematical Days 2008
Helsinki University of Technology (Espoo, Finland)
|
2007/06 | Equivalence of operations with respect to discriminator clones | 74th Workshop on General Algebra (AAA74)
Tampere University of Technology (Tampere, Finland)
|
2007/02 | On homomorphisms of labeled posets | 73rd Workshop on General Algebra (AAA73) & 22nd Conference of Young Algebraists (CYA22)
Alpen-Adria-Universität Klagenfurt (Klagenfurt, Austria)
|
2006/05 | Subfunctions and Burle's clones | Workshop "Algebra and its applications"
University of Tartu (Kokõ, Estonia)
|
2006/01 | Subfunction relations defined by the clones of monotone functions on a finite set | Finnish Mathematical Days 2006 & 2nd Finnish-Estonian Mathematical Colloquium
Tampere University of Technology (Tampere, Finland)
|
2005/07 | Hypergraph homomorphisms and compositions of Boolean functions with clique functions | Conference on Universal Algebra and Lattice Theory
University of Szeged (Szeged, Hungary)
|
2005/07 | Compositions of Boolean functions with monotone functions | Novi Sad Algebraic Conference (NSAC '05)
University of Novi Sad (Novi Sad, Serbia)
|
2005/05 | On subfunctions of Boolean functions | 70th Workshop on General Algebra (AAA70)
Technische Universität Wien (Vienna, Austria)
|
2004/11 | On compositions of clones of Boolean functions | International Conference of Computational Methods in Sciences and Engineering 2004 (ICCMSE 2004)
(Vouliagmeni, Greece)
|
Supervision
Thesis Title Role |
Degree Subject (Type) Institution / Organization |
|
---|---|---|
2018 - 2018/04 | Graphs and homomorphisms
Supervisor
|
mathematics (Degree)
Technische Universität Dresden Institut für Algebra, Germany
|
2017 - 2017/10 | Primitiv positive Klone Boolescher Funktionen
Supervisor
|
mathematics (Degree)
Technische Universität Dresden Institut für Algebra, Germany
|
2017 - 2017/09 | Definability of the class of threshold functions by relational constraints
Supervisor
|
mathematics (Degree)
Technische Universität Dresden Institut für Algebra, Germany
|
2007 - 2007 | On convergent sequences of Pascal's simplices
Co-supervisor
|
mathematics (Master)
Tampere University of Technology - Institute of Mathematics, Finland
|
Event organisation
Event name Type of event (Role) |
Institution / Organization | |
---|---|---|
2019/06/21 - 2019/06/23 | 98th Workshop on General Algebra (AAA98) (2019/06/21 - 2019/06/23)
Conference (Member of the Organising Committee)
|
Technische Universität Dresden Institut für Algebra, Germany |
2013/01/31 - 2013/02/02 | 85th Workshop on General Algebra (AAA85) (2013/01/31 - 2013/02/02)
Conference (President of the Organising Committee)
|
Université du Luxembourg, Luxembourg |
2011/06/16 - 2011/06/16 | DMA Colloquium on general algebra (2011/06/16 - 2011/06/16)
Conference (Member of the Organising Committee)
|
University of Luxembourg Computer Science and Communications Research Unit, Luxembourg |
2007/06/07 - 2007/06/10 | 74th Workshop on General Algebra (AAA74) (2007/06/07 - 2007/06/10)
Conference (Member of the Organising Committee)
|
Tampere University of Technology - Institute of Mathematics, Finland |
Jury of academic degree
Topic Role |
Candidate name (Type of degree) Institution / Organization |
|
---|---|---|
2020/07/13 | Closed sets of functions on algebras of prime power order
(Thesis) Arguer
|
Sebastian Kreinecker (PhD)
Johannes Kepler Universität Linz Fachbereich Mathematik, Austria
|
2020/06/24 | Clonoids, clones, and Mal'cev conditions
(Thesis) Arguer
|
Stefano Fioravanti (PhD)
Johannes Kepler Universität Linz Fachbereich Mathematik, Austria
|
2018/10/17 | On the characterization of particular orthogroups by disjunctions of identities
(Thesis) Arguer
|
Alexander Jende (PhD)
Universität Potsdam, Germany
|
2015/06/25 | Categorical equivalence in algebra
(Thesis) Main arguer
|
Oleg Košik (PhD)
Tartu Ülikool, Estonia
|
2010/06/10 | Automorphisms of some combinatorially defined Lie algebras over GF(2)
Thesis Member
|
Young Jo Kwak (PhD)
University of Colorado Boulder, United States
|
Conference scientific committee
Conference name | Conference host | |
---|---|---|
2020/08/26 - 2020/08/28 | Algebras, Graphs and Ordered Sets (ALGOS 2020) | Lorraine Research Laboratory in Computer Science and its Applications (Loria) |
Course / Discipline taught
Academic session | Degree Subject (Type) | Institution / Organization | |
---|---|---|---|
2019/04 - 2019/07 | Algebra for information system technology, part 2 | information system technology (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2018/10 - 2019/02 | Algebra for information system technology, part 1 | information system technology (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2018/10 - 2019/02 | Linear algebra | computer science (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2018/04 - 2018/07 | Algebra and number theory | mathematics education (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2017/10 - 2018/02 | Discrete structures (Introduction to universal algebra) | mathematics (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2017/04 - 2017/07 | Functions and relations | mathematics (Bachelor) | Technische Universität Dresden Institut für Algebra, Germany |
2016/10 - 2017/02 | Order structures | mathematics (Master) | Technische Universität Dresden Institut für Algebra, Germany |
2013 - 2013 | Introduction to clone theory and applications to constraint satisfaction problems (intensive summer course) | (Doctor) | Université Paris Dauphine, France |
2011 - 2013 | Mathematical writing skills | computer science (Doctor) | University of Luxembourg Computer Science and Communications Research Unit, Luxembourg |
2011 - 2013 | Discrete mathematics | computer science (Bachelor) | University of Luxembourg Computer Science and Communications Research Unit, Luxembourg |
2011/08/29 - 2011/09/09 | Boolean functions and function algebras (intensive summer course) | (Doctor) | Tampereen yliopisto, Finland |
2009 - 2010 | Boolean functions and function algebras (intensive summer course) | (Doctor) | Tampere University of Technology - Institute of Mathematics, Finland |
2007/03 - 2007/04 | Mathematics for algorithms | (Bachelor) | Tampere University of Technology - Institute of Mathematics, Finland |
2007 - 2007 | Fourier methods | (Bachelor) | Tampere University of Technology - Institute of Mathematics, Finland |
2007 - 2007 | Probability calculus | (Bachelor) | Tampere University of Technology - Institute of Mathematics, Finland |
2001 - 2007 | Algebra 1 | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2006 - 2006 | Theory of automata | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2001 - 2006 | Cryptology | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2000 - 2006 | Graph theory | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2005 - 2005 | Finite fields | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2005 - 2005 | Mathematical logic | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2002 - 2005 | Mathematics for algorithms | (Bachelor) | Tampere University of Technology - Institute of Mathematics, Finland |
2001 - 2005 | Formal languages | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
2004 - 2004 | Algebra 2 | (Master) | Tampere University of Technology - Institute of Mathematics, Finland |
Evaluation committee
Activity description Role |
Institution / Organization | Funding entity | |
---|---|---|---|
2018 - 2018 | reviewer for a grant application
Evaluator
|
Natural Sciences and Engineering Research Council of Canada | |
2016 - 2016 | reviewer for a project proposal
Evaluator
|
Narodowe Centrum Nauki | |
2013 - 2013 | reviewer for a project proposal
Evaluator
|
Grantová agentura Ceské republiky | |
2010 - 2010 | reviewer for a grant application
Evaluator
|
Royal Military College of Canada |
Journal scientific committee
Journal title (ISSN) | Publisher | |
---|---|---|
2018/10 - Current | Discussiones Mathematicae - General Algebra and Applications (2084-0373) | "Faculty of Mathematics, Computer Science and Econometrics, University of Zielona Gora" |
Distinctions
Award
2018 | Outstanding Contributed Paper Award for a paper presented at the IEEE 47th International Symposium on Multiple-Valued Logic
(ISMVL 2017)
IEEE Computer Society, United States
|