In December 2011 The Archive recorded or made arrangements to share recordings made by others

 

30th NOVEMBER 2011 – 3rd DECEMBER 2011

CATEGORIES AND PHYSICS 2011

An International Colloquium on The Role of Category Theory in Physics

at The Laboratoire des Astrophysique et Particules (APC)

Batiment Condorcet

University of Paris 7  Denis Diderot.

Organisers : Professor Marc LACHIEZE-REY (APC Paris 7 and CNRS) and Professor Jean-Jacques SZCZECINIARZ

(ENS & Paris 7)

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For Further Detailed Announcement and List of Invited Speakers and participants see

http://categories-and-physics-2011.math.univ-paris-diderot.fr/

November 30 to December 2 2011 in Paris (France)

A multidisciplinary meeting mathematics/physics/philosophy

CATEGORIES and PHYSICS 2011

The aim of this workshop is to explore in which extent the theory of categories can help to solve the difficulties of theoretical physics; to progress towards new theories; to gain a better understanding of nature. Among the difficulties, we emphasize the mathematical formulations of quantum physics and its interpretations; the problems issued by divergences and singularities; the relational character of physics (expressed by background independence, covariance,…); the quest for an unified theory; the quantization of gravity…

All those questions imply new visions of the nature and may be addressed in the categorical framework; hopefully in a way also relevant for unification of physics and quantum gravity… Categories provide new approaches to geometry, relations between physics, geometry and logic… : cobordisms, causal sets,… for space-time ; more generally, topoi, model categories (Quillen), synthetic differential geometry (Kock et Lawvere), diffeology…

Topics for the workshop :

Categorical views of quantum physics

New approaches to geometry; its relations with algebra and logic…

Quantum gravity

Epistemologic implications of categories

Program

Click here for Detailed program with abstracts of talks

DAY ONE NOVEMBER 30th 2011

Nov. 30, 13:00: Welcome to participants over coffee.   Nov. 30, 13:30: Alain Prouté (Université Paris Diderot) What does it mean to do mathematics within a topos ? Video : Nov. 30, 14:30: Dominique Lambert (FUNDP Namur) Cofaisceaux et logique paraconsistante. Video :  Nov. 30, 16:00: Daniel Bennequin (Université Paris Diderot) Classic and quantum Information topos. Video : Nov. 30, 17:00: Patrick Iglesias Zemmour (LATP-CNRS, Marseille) Difféologie des espaces de mouvements. Video :

DAY TWO : DECEMBER 1st 2011

Dec. 1, 10:00: Jean Benabou (Université Paris-Nord) Allegories revisited. Video : Dec. 1, 11:00: Stéphane Dugowson (SupMéca-Paris) On Categorical Connective Dynamics. Video : Dec. 1, 13:30: Andrée Ehresmann (Université de Picardie Jules Verne) Categorical approach to multi-scale dynamic systems. Video :   Dec. 1, 14:30: René Guitart (Université Paris Diderot) Cohomology and categorical qualitative modeling of differentials and laws in mathematical physics. Video : Dec. 1, 16:00: Paul-André Melliès (Université Paris Diderot-CNRS) A functorial bridge between proofs and knots. Video : Dec. 1, 17:00: Klaas Landsman (Radboud Universiteit Nijmegen) Topos theory, quantum physics, and generalized concepts of space. Video

DAY THREE DECEMBER 2nd 2011

Dec. 2, 10:00: Olivia Caramello (Cambridge University) The idea of ‘bridge’ and its unifying role in Science : Toposes as bridges in the unification of mathematics Video Dec. 2, 11:00: Andreas Doering (University of Oxford) The topos approach to the formulation of physical theories. Video Dec. 2, 13:30: Edward Anderson (APC Université Paris 7) Why is Quantization a Bad Functor ? Video Dec. 2, 14:30: Frédéric Paugam (Université Pierre et Marie Curie) Functorial analysis and nonperturbative quantum field theory. Video : Dec. 2, 16:00: Louis Crane (Kansas State University) Neutrino Physics and Category theory. Video : Dec. 2, 17:00: Cecilia Flori (Perimeter Institute) Group Action in Topos Quantum Physics. Video :

Talks on november 30 will be held in Ecole d’Architecture Paris-Val de Seine

(3-15 quai Panhard et Levassor, 75013 Paris) Map

Talks on december 1 and 2 will be held at Auditorium Biopark

(11 rue Watt, 75013 Paris) Map

List of Participants

Charles ALUNNI   (Ens) Edward Anderson   (APC Université Paris 7) Evelyne Barbin-Guitart   (Université de Nantes) Jean Benabou   (Université Paris-Nord) Daniel Bennequin   (Université Paris Diderot) Alexandre Bouayad   (X / Paris 7) Blind Bruno   (IECN Nancy I) Sylvain Cabanacq   (Paris Diderot – SPHERE) Tigrane CANTAT-MOLTRECHT   (LOPHISS P7 – Physique ENS Cachan) Olivia Caramello   (Cambridge University) christophe chalons   (paris7) Jonathan CHICHE   (Université Paris 7) Peadar Coyle   (University of Luxembourg) Louis Crane   (Kansas State University) Benoit Daval   (—) Michel De Glas   (REHSEIS Paris 7) Scarpalezos Dimitris   (ex IMJ) Arache Djannati-Ataï   (APC) Andreas Doering   (University of Oxford) Stéphane Dugowson   (SupMéca-Paris) Behrooz Ebadi   (Paris Diderot) Andrée Ehresmann   (Université de Picardie Jules Verne) Cecilia Flori   (Perimeter Institute) Sidney Frankel   (AO-(IMJ)) Ben Frot   (Telecom ParisTech / Paris 7) philippe gac   (sphere) Charles Garate   (Groupe de travail en logique catégorique) René Guitart   (Université Paris Diderot) Claude HENRY   (P7) Eric Heurtain   (IMM) Laurence Honnorat   (Innovaxiom ) Frédéric Hélein   (Paris Diderot) Patrick Iglesias Zemmour   (LATP-CNRS, Marseille) Rozenbaum Jacques   (CNO 15/20) Franck Jedrzejewski   (CEA Saclay) Philippe Journeau   (DiscInNet Labs) JEAN-CHARLES Jérôme   (private ) Anatole Khélif   (IMJ-Paris 7) Marc Lachièze-Rey   (APC-Paris 7) Jean-Pierre LAFFINEUR   () Dominique Lambert   (FUNDP Namur) Klaas Landsman   (Radboud Universiteit Nijmegen) Christian Larcher   () sylvain lavau   (ENS Lyon) Victoria Lebed   (IMJ-Paris 7) Christian LERUSTE   (IMJ-Paris7) Yves Martinez-Maure   (IMJ) Monique MATHIEU   () Paul-André Melliès   (Université Paris Diderot-CNRS) Alain Molinier   () Samuel Mwame   () Daniele Oriti   (Albert Einstein Institute) Julien Page   (CREA) Frédéric PASCAL   (Institut Jean Nicod) Frédéric Paugam   (Université Pierre et Marie Curie) PEREZ Paule   (Séminaire Lieux du sujet) François Petit   (UPMC) Régis PLATEAUX   (Supméca) Alain Prouté   (IMJ-Paris 7) Maël Pégny   (Paris-1) Fan Qin   (University Paris 7) Jacques Riguet   (Univ.Paris 5 René Descartes) Andrei Rodin   (REHSEIS-Paris 7) pierre Saurel   (Université Paris 4 EA Rationalités contemporaines) Myrto Sauvageot   (UPMC, Elisa) Pierre Schapira   (University of Paris 6) Marni Dee Sheppeard   (none) Ion Soteropoulos   (Apeiron Centre) Philippe Stamenkovic   (Paris 7) Petros Stefaneas   (National Technical University of Athens, Greece) Jean-Jacques Szczeciniarz   (REHSEIS-Paris 7) Benoît TABONE   (Paris7 (LOPHISS) – ENS Ulm) Guillaume TAHAR   (ENS Cachan) Frank Taipe   (Paris 7) Alain Tarika   (Etudiant Université de Lausanne) Svetlana Tkatcheff   (invitée) Eva Tokgoz   (UPMC6) Christian Velpry   (ex Paris 7) Benjamin Wagener   (IMJ) Michael Wright   (Archive Trust for Mathematical sciences & Philosophy)

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List of Recordings and Link to Video and Audio recordings of Meeting to be added.

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1st DECEMBER 2011

IHES Burre sur Yvette Greater Paris  16:45 hrs.

IHES Seminar in Theoretical and Experimental Approaches to Gravitation Series

Carlo ROVELLI (CPT, Marseille ).

 Amphitheatre Leon Motchane ( IHÉS )

Theme: Gravitation

Résumé:   Loop Quantum Gravity has much developed in last few years. I review the present state of the theory, focusing on the following issues: the precise definition of the covariant theory, the relation with the old canonical LQG (and the separability of the Hilbert space), the finiteness of the transition amplitudes, the classical limit and the computation of the n-point functions, and the distinction between the theorems proved and the open hopes.

Click here for recording of Talk

Click here for speakers overheads

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3rd DECEMBER 2011

Nancy : Archives Henri Poincare

10:00 – 17:30 hrs Salle Interrnationale MSH Lorraine

Maison des Sciences de L’Homme de Lorraine,   91 Avenue de la Liberation Nancy

MATHEMATIQUES ET METAPHYSIQUE CHEZ DESCARTES SELON JULES VUILLEMIN. 

Programme :

10:00 :  Roshdi RASHED (CNRS/SPHERE/CHSPAM)

Autour de la notion d’infinement petit chez Descartes

Click here for link to Video recording

Click here for link to audio recording

Click here for Speakers Overheads

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11:00 : David RABOUIN (CNRS, SPHERE, REHSEIS)

Mathesis Universalis, Theorie des proportions et algebre

Click here for link to Video recording

Click here for link to audio recording

Click here for Speakers Overheads

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LUNCH

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13:45 : Vincent JULIEN  (University de Nantes, CAPHI)

De Quelle Nature sont les activities mathematiques de Descartes selon Vuillemin ?

Click here for link to audio recording

Click here for Speakers Overheads

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14:45 :  Helene BOUCHILLOUX (University Nancy 2 and AHP)

Ordre et raison de verite : Mathematique et Metaphysique chez Descartes

Click here for link to audio recording

Click here for link to Speakers Overheads

 

5th DECEMBER 2011

Thesis Defence : University of Lyon 1

14:30 hrs :  Salle de la Rotonde, 18 rue Chevreul, 6ème étage.

Christophe ECKES

Groupes, invariants et géométries dans l’oeuvre de Weyl, une étude des écrits de Hermann Weyl en mathématiques, physique mathématique et philosophie, 1910-1931.

Groups, Invariants and Geometries in the Work of  Hermann WEYL : A Study of the Writings of Hermann Weyl in Mathematics, mathematical Physics and Philosophy 1910-1931 

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Jury :

Daniel Parrochia (PR, Université Lyon III, directeur de thèse),
Bertrand Rémy (PR, Université Lyon I, codirecteur de thèse),
Jim Ritter (maître de conférences, Université Paris VIII, examinateur),
Erhard Scholz (PR, Université de Wuppertal, rapporteur),
Hourya Sinaceur (DR, Université Paris I, rapporteur),
Jean-Jacques Szczeciniarz (PR, Université Paris VII, examinateur),
Amaury Thuillier (maître de conférences, Université Lyon I, examinateur).

DrEckes was awarded

Click here for link to Text of Thesis (by kind permission of Dr Eckes and the Thesis Jury)

Click here for Notes of issues raised during the Thesis Defence

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Further entries for December 2011 to be added.