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NCG&T

Joint working group in noncommutative geometry and topology of Charles University and the Institute of Mathematics of the Czech Academy of Sciences


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Welcome to NCG&T Prague

What is noncommutative geometry and topology? The idea stems from the Gelfand theorem which states that the category of compact Hausdorff spaces and commutative C*-algebras are dual. If we drop the condition of commutativity from our C*-algebras, we arrive at the notion of a noncommutative topological space. This can be carried further into the realm of noncommutative of geometry by equipping *-algebras with geometric structures.

Our research focusses on both quantum algebraic and operator algebraic aspects of noncommutative geometry and topology. This includes research in Hopf algebras, quantum groups, and noncommutative complex geometry, while on the operator algebra side, we study C*-algebras, with particular focus on C*-algebras arising from dynamical constructions such as minimal actions, groupoids, and semigroups.

Partially supported by GAČR project 20-17488Y Applications of C*-algebra classification: dynamics, geometry, and their quantum analogues and PRIMUS grant Spectral Noncommutative Geometry of Quantum Flag Manifolds.


Group Members


NCG&T group members


Seminars


NCG&T Seminar. Tuesdays at 16:00.

NCG&T Youtube Channel.

5 October 2021. Fredy Díaz.

12 October 2021. No seminar.

19 October 2021. Adam-Christaan van Roosmalen.

26 October 2021. Paulo Saracco.

2 November 2021. TBA.

9 November 2021. Fedor Part.

16 November 2021. TBA.

23 November 2021. Becky Armstrong.

30 November 2021. TBA.

7 December 2021. TBA.

14 December 2021. TBA.

21 December 2021. TBA.

Previous talks: NCG&T Youtube Channel.

15 June 2021. Tomasz Brzeziński.

8 June 2021. Rita Fioresi.

1 June 2021. Goncalo Tabuada.

25 May 2021. M. Ali Asadi-Vasfi.

18 May 2021. Bhishan Jacelon.

11 May 2021. Mike Whittaker.

4 May 2021. Laurent Cantier.

27 April 2021, 17:30 CEST. Benjamin Steinberg.

20 April 2021. Alexandru Chirvasitu.

13 April 2021. Zahra Hasanpour-Yakhdani and Ali Raad.

6 April 2021. Daniel Gromada.

30 March 2021. Jacopo Bassi.

23 March 2021. Volodymyr Mazorchuk.

16 March 2021. Mehrdad Kalantar.

9 March 2021. Adam Magee and Sofie Emma Mikkelsen.

2 March 2021. Ingrid Beltiţă.

25 February 2021. Angela Tabiri.

16 February 2021. Anshu and Sugato Mukhopadhyay.

9 February 2021. Shahn Majid.

2 February 2021. Wilhelm Winter.

26 January 2021. Marzieh Forough.

19 January 2021. Zhaoting Wei.

12 January 2021. Branimir Ćaćić.

15 December 2020. Marco Matassa.

8 December 2020. Shirly Geffen.

1 December 2020. Jonathan Brown.

24 November 2020. Hannes Thiel.

17 November 2020. Robert Yuncken.

10 November 2020. Lara Ismert.

3 November 2020. Bart Vlaar.

27 October 2020. Konrad Aguilar.

20 October 2020. Alessandro Carotenuto.

Malý seminar. Fridays at 15:00, Žitná 25, blue seminar room, back building

Introduction to C*-algebraic K-theory. Bhishan Jacelon

13 August 2021: Basic definitions of K_0 and K_1.

20 August 2021: Proof of Bott periodicity.

Previously:

Introduction to Unbounded Operators. Fredy Díaz.

30 July 2021: Basic definitions and properties.

6 August 2021: The spectral theorem for self-adjoint operators.

Lie Theory for Dummies. Karmen Grizelj

23 July 2021: Lie groups and algebras.

24 July 2021: Representations of Lie algebras.

Cantor minimal systems. Wednesdays at 15 (usually!). Žitná 25, small seminar room, front building

11 September 2020 13:00 (Friday): Eva Pernecka, The D_m invariant, Part 2.

2 September 2020: Eva Pernecka, The D_m invariant.

5 August 2020: Tristan Bice, Strong orbit equivalence.

30 July 2020 (Thursday): Marzieh Forough, The Bratteli–Elliott–Krieger theorem.

25 July 2020, 14:00 (Friday): Saeed Ghasemi, The invariant for Cantor minimal systems and AF relations II

8 July 2020: Saeed Ghasemi, The invariant for Cantor minimal systems and AF relations

25 June 2020: Tristan Bice, Étale groupoids slides

17 June 2020: Saeed Ghasemi, A summary of what we learned before the lockdown

11 March 2020: Marzieh Forough, Bratteli–Vershik systems

4 March 2020: Marzieh Forough, Cantor dynamical systems and Bratteli diagrams

NCG&T Prague

Contact us

praguencgt@gmail.com

Žitná

Žitná 25
115 67 Prague 1
(Nové Město)

Karlín

Sokolovská 83
186 75 Prague 8
(Karlín)

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