Talks of Yuhei Suzuki

, Talks of Yuhei Suzuki
List of Talks

Conference talks

[1]An example of non-isomorphic C*-algebras whose universal enveloping von Neumann algebras are isomorphic
Junior Meeting on Functional Analysis 2011, Kyoto, 11 Sep. 2011.
[2]Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)
Kyoto Operator Algebra Day, RIMS, 20 Feb. 2013.
[3]About the Haagerup property
The 9th Mathematics Conference for Young Researchers, Hokkaido University, 4 Mar. 2013.
[4]Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)
Kansai Operator Algebras Seminar, Osaka Kyoiku University, 8 Jun. 2013.
[5]Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)
The Asian Mathematical Conference 2013 (contributed talk), BEXCO Busan(Korea), 2 Jul. 2013.
[6]Amenable minimal dynamical systems of free groups on Cantor set and C*-algebras
FMSP Tambara Student Session, Tambara Institute of Mathematical Sciences, 3 Sep. 2013.
[7]Haagerup property for C*-algebras and rigidity of C*-algebras with property
RIMS Workshop Recent Progress in Operator Algebras, RIMS, 11 Sep 2013.
[8]Amenable minimal dynamical systems of free groups on Cantor set and C*-algebras
Junior Meeting on Functional Analysis 2013, Kusatsu, 19 Sep. 2013.
[9]Haagerup property for C*-algebras and rigidity of C*-algebras with property (T)
MSJ Autumn Meeting 2013, Ehime University, 26 Sep. 2013.
[10]Amenable minimal Cantor systems of free groups arising from diagonal actions
The 5th Shirahama Conferense, Shirahama, 2 Dec. 2013.
[11]Amenable minimal Cantor systems of free groups arising from diagonal actions
Metric geometry and analysis, Kyoto University, 12 Dec. 2013.
[12]Amenable minimal Cantor systems of free groups arising from diagonal actions
East Asian Core Doctoral Forum on Mathematics, Kyoto University, 24 Jan. 2014.
[13]Amenable minimal Cantor systems of free groups arising from diagonal actions
Operator Spaces, Locally Compact Quantum Groups and Amenability, Fields institute, 30 May 2014.
[14]Some isomorphism theorems of O_2 (Theorem of Elliott and Rørdam)
Summer Camp on Operator Algebras, Otaru, 19 Jul, 2014.
[15]Amenable minimal Cantor systems of free groups arising from diagonal actions
ICM Satellite Conference on Operator Algebras and Applications, Cheongpung (Korea), 9 Aug. 2014.
[16]Ambient nuclear C*-algebra of reduced free group C*-algebra smaller than boundary algebra
Junior Meeting on Functional Analysis 2014, Gifu, 20 Aug. 2014.
[17]Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2
Classification, STructure, Amenability and Regularity (CStar) Conference, University of Glasgow, Sep. 2014.
[18]Realization of group C*-algebras with approximation property as decreasing intersection of Cuntz algebras O_2
Recent Developments in Operator Algebras, RIMS, 9 Sep. 2014.
[19]Amenable minimal Cantor systems of free groups arising from diagonal actions
MSJ Autumn Meeting 2014, Hiroshima university, 27  Sep. 2014.
[20]Group C*-algebras as decreasing intersection of nuclear C*-algebras
Kansai Operator Algebras Seminar, Shirahama, 30 Nov. 2014.
[21]Construction of minimal skew products of amenable minimal dynamical systems
Ochanomizu University, Tenure track mini conference, 26 Mar. 2015.
[22]Construction of minimal skew products of amenable minimal dynamical systems
Mathematical Symposium ENS Lyon-Todai, ENS Lyon, 25 Jun. 2015.
[23]Construction of minimal skew products of amenable minimal dynamical systems
Workshop on C*-algebras: Geometry and Actions, University of Münster, 14 Jul. 2015.
[24]Group C*-algebras as decreasing intersection of nuclear C*-algebras
Young Mathematicians in C*-Algebras, University of Copenhagen, 17 Aug. 2015.
[25]Minimal ambient nuclear C*-algebras
Some problems in operator algebras related to ergodic theory and group theory, RIMS，27 Jan. 2016.
[26]Minimal ambient nuclear C*-algebras
Classification of operator algebras: complexity, rigidity, and dynamics, Mittag-Leffler institute, 5 Apr. 2016
[27]Elementary constructions of non-discrete C*-simple groups
Junior Meeting on Functional Analysis 2016，Gunma University Kusatsu seminar house，28 Aug. 2016.
[28]Construction of minimal skew products of amenable minimal dynamical systems
MSJ Autumn Meeting 2016, Kansai University, 17 Sep. 2016.
[29]Elementary constructions of non-discrete C*-simple groups
MSJ Autumn Meeting 2016, Kansai University, 17 Sep. 2016.
[30]Almost finiteness for general etale groupoids and its applications to stable rank of crossed products
RIMS workshop Recent Developments in Operator Algebras，RIMS，4 Sep. 2017．
[31]On pure infiniteness of crossed products of minimal extensions
MSJ Autumn Meeting 2017, Yamagata University, Sep. 2017.
[32]Almost finiteness and stable rank
Annual Meeting on operator theory & operator algebra theory, Ritsumeikan University, 17 Nov. 2017．
[33]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
Recent Developments in Operator Algebras，RIMS，5 Sep. 2018．
[34]Eigenvalue set for etale groupoids and constructions of distinguished minimal actions
MSJ Autumn Meeting 2018, Okayama University, 26 Sep. 2018.
[35]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
Barcelona Weekend in Operator Algebras，CRM，17 Nov. 2018．
[36]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
The 5th Workshop on Geometric Group Theory，Okinawa，6 Mar. 2019．
[37]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
Special Week on Operator Algebras，Research Center for Operator Algebras, East China Normal University，Jun. 2019．
[38]Non-amenable tight squeezes by Kirchberg algebras
Topology and Measure in Dynamics and Operator Algebras, BIRS, Canada，10 Sep. 2019． video．
[39]Non-amenable tight squeezes by Kirchberg algebras
Maximal subgroups and operator subalgebras, IMPAN, Poland，Sep. 2019．
[40]Amenable actions on Kirchberg algebras and application
KOAS(Korean Operator Algebra Seminar) 16th, Korea，29 Nov. 2019 (50 min * twice).
[41]Amenable actions on Kirchberg algebras and applications
Annual Meeting on operator theory & operator algebra theory,Kanagawa University, 8 Dec.2019．
[42]Equivariant O_2-absorption theorem for exact groups
Oberseminar, Muenster University (Zoom lecture), 30 June 2020. slide(21MB)
[43]Equivariant O_2-absorption theorem for exact groups
RIMS Workshop, Recent developments on operator algebras (Zoom), 7 Sep. 2020.slide(3MB)
[44]Equivariant O_2-absorption theorem for exact groups
SNU-HU Math Symposium 2020 (Zoom), 13 Nov.2020.
[45]C*-simplicity has no local obstruction
Operator Algebras Session of the IWOTA (1 hour slot), Zoom, middle of Aug. 2021.
[46]C*-simplicity has no local obstruction
MSJ Autumn Meeting 2021, Chiba University[online], Sep. 2021.
[47]Simplicity and tracial weights on non-unital reduced crossed products
HU-SNU Symposium on Mathematics Operator algebra session, zoom, 4 Nov. 2021.
[48]Noncommutative amenable actions: characterizations, applications, and new examples
Autumn Operator Algebras Program 2021, East China Normal University, China(Zoom), 17 Nov. 2021.
[49]Noncommutative amenable actions: characterizations, applications, and new examples
Symmetry and amenability in operator algebras, mini course, RIMS, 24, 25 Jan. 2022 (60 min*2)
[50]TBA
Operator algebras and Group Dynamics CIRM(Marseille), Zoom, 18 May .2022
[51]Noncommutative amenable actions
MSJ Autumn Meeting 2022 (Talk Invited by Functional Analysis Section), Hokkaido University, 15 Sep. 2022
[52]Amenable actions on finite simple C*-algebras arising from flows on Pimsner algebras
Algebra, Geometry and C*-algebras, ICMS, Bayes Centre, Edinburgh, June 21, 2023.
[--]TBA
Workshop on C*-algebras and related topics, RIMS?, postponed
[53](Non)commutative dynamics and operator algebras 
ICBS2024，BIMSA(Beijing), Jul. 2023.
[54]Amenable actions on finite simple C*-algebras arising from flows on Pimsner algebras
Operator Algebras and Mathematical Physics (Yasu Festa 60), University of Tokyo,Jul. 2023.
[55]Amenable actions on finite simple C*-algebras arising from flows on Pimsner algebra
Workshop on Operator Algebras and Applications: Symmetry and Structure, Fields Institute (Tronto), Sep. 2023..
[56]C*-simplicity of discrete extensions
Totally disconnected locally compact groups: local to global, University of Muenster, Oct. 2023.
[57]Amenable actions on finite simple C*-algebras arising from flows on Pimsner algebras 
作用素環論と種々の対称性, RIMS, Jan. 2024.
[58]Crossed product splitting of intermediate operator algebras via 2-cocycles
国際基礎科学大会(ICBS) Prenary Spearker, BIMSA(北京), Jul. 2024.
[59]Crossed product splitting of intermediate operator algebras via 2-cocycles
Quantum Theory and Operator Theory (Satellite conference of ICBS2024), BIMSA(Beijing), Aug. 2024.
[60]Crossed product splitting of intermediate operator algebras via 2-cocycles
Group Operator Algebras: Classification, Structure and Rigidity, BIRS(Banff, Canada), Sep. 2024.
[--]
国際基礎科学大会(ICBS) Prenary Spearker, BIMSA(北京), Jul. 2025.




Seminar talks

[1]A measurable group theoretic solution to von Neumann's Problem (after Gaboriau and Lyons)
Operator algebra seminar, University of Tokyo, 2 Mar. 2012.
[2]On Quasidiagonal Representations of Nilpotent Groups (after Caleb Eckhardt)
Kyoto Operator Algebra Seminar, RIMS, 15 Mar. 2013.
[3]Amenable minimal Cantor systems of free groups arising from diagonal actions
Kyoto Operator Algebra Seminar, RIMS, 8 Oct. 2013.
[4]Amenable minimal Cantor systems of free groups arising from diagonal actions
Operator algebra seminar, University of Tokyo, 30 Oct. 2013.
[5]Amenable minimal Cantor systems of free groups arising from diagonal actions
Operator Algebras Theory and Ergodic Theory Seminar, Kyusyu University, 3 Feb. 2014.
[6]Amenable minimal Cantor systems of free groups arising from diagonal actions
Operator algebra seminar, University of Copenhagen (Denmark), 26 Feb. 2014.
[7]Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2
Kyoto Operator Algebra Seminar, RIMS, 17 Jun. 2014.
[8]Realization of hyperbolic group C*-algebras as decreasing intersection of Cuntz algebras O_2
Operator algebra seminar, University of Tokyo, 8 Oct. 2014.
[9]Construction of minimal skew products of amenable minimal dynamical systems
Kyoto Operator Algebra Seminar, RIMS, 7 Apr. 2015.
[10]Construction of minimal skew products of amenable minimal dynamical systems
Operator algebra seminar, University of Tokyo, 22 Apr. 2015.
[11]Construction of minimal skew products of amenable minimal dynamical systems
Operator Algebras Theory and Ergodic Theory Seminar, Kyusyu university, 6 Jul. 2015.
[12]Minimal ambient nuclear C*-algebras
Operator Algebra Seminar, KU Leuven, 13 Nov. 2015.
[13]Minimal ambient nuclear C*-algebras
Oberseminar, University of Münster, 24 Nov. 2015.
[14]Minimal ambient nuclear C*-algebras
Groups, Actions and von Neumann algebras, the Universite Paris-Sud, Orsay. 17 Dec. 2015.
[15]Minimal ambient nuclear C*-algebras
Geometry and Analysis, Queen Mary university of London, 16 Feb. 2016.
[16]Minimal ambient nuclear C*-algebras
Operator algebra seminar, University of Tokyo, 6 Jun. 2016.
[17]On stable rank of crossed product C*-algebras
Analysis Seminar, Chiba University，21 Feb. 2017.
[18]Almost finiteness for general etale groupoids and its applications to stable rank of crossed products
Quantum Analysis Seminar, Nagoya University，10 May 2017.
[19]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
Kyoto Operator Algebra Seminar，RIMS，3 Jul. 2018．
[20]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
GAN Seminar, the Universite Paris-Sud, Orsay, 12 Nov. 2018.
[21]Complete descriptions of intermediate operator algebras by intermediate extensions of dynamical systems
C*-algebra seminar, Oslo University, 28 Nov. 2018.
[22]Rigid sides of approximately finite dimensional simple operator algebras in non-separable category.
OberSeminar, Muenster University, 4 Dec. 2018
[23]Simple equivariant C*-algebras whose full and reduced crossed products coincide.
Analytic and Geometric Group Theory Seminar, IMPAN, 13 Dec. 2018
[24]Rigid sides of approximately finite dimensional simple operator algebras in non-separable category.
Operator Algebras Theory and Ergodic Theory Seminar, Kyusyu university, 15 Jan. 2019
[25]Amenable actions on Kirchberg algebras and applications
Quantum Analysis Seminar, Nagoya university, 16 Jul. 2019
[26]Equivariant O_2-absorption theorem for exact groups
Tokyo Operator algebra seminar, (Zoom talk), 4 June 2020.
[27]C*-simplicity has no local obstruction
Tokyo Operator algebra seminar, (Zoom talk), 15 June 2021.Slide
[28]Noncommutative amenable actions: characterizations, applications, and new examples
Seoul National University (SNU)Operator algebra seminar, Korea(Zoom), 13 Oct. 2021.
[29]Amenability of C*-dynamical systems
SIMIS(Shanghai), Operator algebras seminar, March 2025.

Talks for general audience and/or students

[1]On Banach-Tarski Paradox
Sugaku Agora，Nagoya Universiyu，for high school students, teachers, and general people, 2, 3, 4, Aug. 2017 (90min. 3 times)
[2]On Banach-Tarski Paradox
2017 Math Public lecture in Nagoya University，Nagoya Universiyu，for high school students, teachers, and general people, 10, 17, 24, Oct. 2017 (90min. 3 times)
[3]Shannon entropy
NHK Culture Sugaku Sansaku，NHK Nagoya Building，for general people, 26 May 2018 (90 min.).
[4]On Banach-Tarski Paradox
JMO Summer Seminar，for students related to Mathematical Olympiad Yamanashi，21 Aug. 2018 (3 hours).
[5]Amenability of groups, actions, and the weak containment problem
MATHSCI FRESHMAN SEMINAR 2020，for graduate students in Math, Nagoya University，Feb. 2020 (90 min.).
[6]On discovery of non-commutative amenable actions and recent developments
Colloquium talk in Math Dep. of Hokkaido University，Zoom，25 Nov. 2020 (60 min.).


Intensive courses

[1]Introduction to non-commutative amenable action
University of Tokyo, 11--15, Apr. 2022 (2 hours * 5 times)
[ｰｰ]
Kyoto University, 2025 (2 hours * 5 times)





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