**Invited Talks**:

**Non-commutative Gelfand-Neumark Duality**, Mahidol University International College Mathematics Seminar, Salaya, Bangkok, Thailand, 28 March 2018 [] []**State-Induced Modular Covariance and Spectral Space-Time**, "Workshop on Mathematical Physics", Theoretical and Computational Physics Group,

King Mongkut University of Technology Thonburi, Bangkok, Thailand, 25 March 2018 [] []

- Spectral Geometries for Some Diffeologies

Noncommutative Index Theory, Simons Semester "Noncommutative Geometry The Next Generation", Banach Center, IMPAN, Warsaw, Poland, 28 October 2016 [link] [slides-pdf] - Lo
Spazio, il Tempo, il Multiverso ed il Nulla ... Verso la
Gravita'
Quantistica ...

"I Martedi' d'Estate", Casa Museo Bendandi, Faenza, Italy, 01 July 2014 (in Italian) [link] [slides.pdf]

- Higher
Categories of Operator Algebras

Topological Quantum Field Theory Seminar, Instituto Superior Tecnico, Lisboa, Portugal, 26 May 2014 [link] [slides.pdf]

- Non-commutative
Geometries via Modular Theory

RIMS International Conference on Noncommutative Geometry and Physics, RIMS, Kyoto, Japan, 09 November 2010 [slides.pdf] [link] [slides.pdf]

- Research
in Functional Analysis: Introduction to Non-commutative
Geometry

12th Graduate Students Seminar, Chulalongkorn University, Bangkok, Thailand, 26 March 2010 - Morphisms
of Spectral Geometries

Special Session on Operator Algebras, Asian Mathematics Conference 2009, Kuala Lumpur, Malaysia, 23 June 2009

- Categories
of Spectral Geometries

Second Workshop on "Categories Logic and Physics", Imperial College, London, UK, 14 May 2008 [slides.pdf] [link] [slides.pdf] [video]

- C*-algebras
and Non-commutative Geometry

Department of Mathematics, Chiang Mai University, Thailand, 7-9 December 2006 - Introduction to
Non-commutative Geometry and Algebraic Quantum Field
Theory

Workshop on ''Operator Algebras and Applications'' Maruay Garden Hotel, Bangkok, Thailand, 2-3 September 1999

- Beyond 2-C*-categories

INdAM CMTP INFN Trimester "Mathematics and Physics at the Crossroads", INFN Frascati, Italy, 23 June 2016 [link] - Categorical
Operator Algebraic Foundations of Relational Quantum Theory

Epistemology and Philosophy Section, Symposium "Frontiers of Fundamental Physics 14" FFP14, Aix Marseille University, Marseille, France, 17 July 2014 [slides-pdf] [link]

- Operator
Algebraic Structures for Quantum Gravity

Department of Physics, Florida Atlantic University, Boca Raton, USA, 19 May 2014

- Quantum
Mathematics for Quantum Physics

Department of Physics, University of Mississippi, Oxford, USA, 30 April 2014 [slides.pdf] [slides-pdf] [link]

- Categorified
Functional Analysis

Analysis Seminar, Department of Mathematics, University of Mississippi, Oxford, USA, 29 April 2014

- Non-commutative
Strict Higher Categories

Non-commutative Geometry Seminar, California Institute of Technology, Pasadena, USA, 21 April 2014 [link]

- Hypermatrices
and Finite Higher C*-categories

Annual Mathematics Meeting, Thammasat University, Pattaya, Thailand, 20 March 2014 [slides.pdf]

- A Higher
C*-categorical Approach to Relational Quantum Mechanics

Loops 13, Perimeter Institute, Waterloo, Canada, 26 July 2013 [slides.pdf] [link] - Higher
C*-categories with Non-commutative Exchange

Category Theory 2013, Macquarie University, Sydney, Australia, 11 July 2013 [slides-pdf] [link]

- Introduction
to Non-commutative Geometry

pre-course for the CIMPA-UNESCO-MICINN Thailand School 2011 "Spectral Triples and Applications", Departiment of Mathematics, Chulalongkorn University, Bangkok, Thailand, 12 May 2011 [slides.pdf] [slides-pdf] - Non-commutative
Geometry and Foundations of Quantum Physics

Centre for Quantum Dynamics, Griffith University, Brisbane, Australia, 01 October 2010

- Modular
Non-commutative Geometries and Quantum Gravity

Australian Mathematical Society Meeting 2010, University of Queensland, Brisbane, Australia, 29 September, 2010

- Spectral
Geometries and Their Categories

University of Florida, Gainesville, USA, 16 April 2009

- Modular Spectral
Geometries for Algebraic Quantum Gravity

QG2-2008 Quantum Geometry and Quantum Gravity Conference, University of Nottingham, UK, 01 July 2008 [slides.pdf] [slides.pdf] [link]

- Spectral Spaceoids
and Categories of Spectral Geometries

Department of Mathematics, Universita' di Roma II "Tor Vergata", Italy, 28 May 2008 [link]

- Categorical
Spectral Geometries and Modular Quantum Gravity

CPT, Marseille, France, 23 May 2008

- Categories in
Non-commutative Geometry: an Overview

University of Swansea, UK, 16 May 2008 - Spectral Theory
for C*-categories and Categorical Non-commutative Geometry

University of Cardiff, UK, 15 May 2008

- Spectral Theorem
for Commutative Full C*-categories

School of Mathematical and Physical Sciences, University of Newcastle, Australia, 11 October 2007 - Categorical
Non-commutative Geometry and Quantum
Theory

Paul Baum Fest, School of Mathematical and Physical Sciences, University of Newcastle, Australia, 02 October 2007 [slides.pdf]

- C*-categories Non-commutative
Geometry
and
Quantum Physics

Australian Mathematical Society Meeting 2007, La Trobe University, Melbourne, 27 September 2007 - Non-commutative
Geometry, Categories and Quantum
Physics

ICMA 2007, International Conference on Mathematics and Applications, Mahidol University, Century Park Hotel, Bangkok, Thailand, 15 August 2007

- An Overview of
Categorical Non-commutative
Geometry

Department of Mathematics, Politecnico di Milano, Italy, 23 April 2007

- Categorification
of Gel'fand Duality and Non-commutative Geometry

Department of Mathematics, Universita' di Roma II "Tor Vergata", Italy, 28 March 2007 [link] - Categorical
Non-commutative Geometry, Gel'fand Duality and Physics

Mathematical Physics Sector, SISSA, International School for Advanced Studies, Trieste, Italy, 22 March 2007 - A Panorama of
Non-commutative Geometry

Department of Mathematics, Universita' di Bologna, Italy, 21 March 2007

- C*-categories,
Spaceoids and Categorical Non-commutative Geometry

Center for Mathematics Physics, University of Queensland, Brisbane, Australia, 01 November 2006 [slides-pdf] [link]

- Horizontal
Categorification of Gel'fand Theory and Categorical
Non-commutative
Geometry

Australian Category Seminar, Mathematics Department, Macquarie University, Sydney, Australia, 25 October 2006 [slides-pdf] [link] - Categorical
Non-commutative Geometry

Colloquium, Mathematics Science Institute, Australian National University, Canberra, Australia, 19 October 2006 [slides.pdf] - Categories in
Non-commutative Geometry

Center for Mathematical Physics, University of Queensland, Brisbane, Australia, 08 June 2006 [slides-pdf] [link]

- Non-commutatve
Geometry and Categories

ICAA 2006, International Conference on Mathematical Analysis and Its Applications, Chulalongkorn University, Montien Hotel, Bangkok, Thailand, 24 May 2006 [slides-pdf]

- Non-commutative
Submanifolds and Quotient Manifolds

Thammasat University, Bangkok, Thailand, 22 December 2003

- Non-commutative
Geometry and Spectral Space-Time'

Physics Department, Mahidol University, Bangkok, Thailand, 19 August 2003 [slides pdf]

- Introduction to
Operator Algebras

Ramkhamhaeng University, Bangkok, Thailand, 27 January 2002

- Introduction to
Non-commutative Geometry

Mahidol University, Bangkok, Thailand, 27 August 1999

- Quantum Mathematics

Thammasat University, Bangkok, Thailand, 7-9 April 1999

- Non-commutative
Mathematics

Regent Resort, Cha Am, Thailand, 11 May 1998