tag:blogger.com,1999:blog-69126032879302404512021-07-25T20:48:17.708+00:00Noncommutative GeometryUnknownnoreply@blogger.comBlogger132125tag:blogger.com,1999:blog-6912603287930240451.post-266443728358277022021-06-01T12:18:00.000+00:002021-06-01T12:18:14.155+00:00Noncommutative Geometry meets Topological Recursion (registration now open) We plan to run the workshop in hybrid form with a considerable number of participants present in Münster and video transmission to the outside world.This workshop intends to be a first meeting point for specialists and young researchers active in noncommutative geometry, free probability, and topological recursion. In the two first areas, one often wants to compute expectation values of a large Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-50546266635058930412021-05-25T07:58:00.003+00:002021-05-25T07:58:22.054+00:00Summer school on K-Theory and Representation Theory
An online summer school on K-Theory and Representation Theory,
organized by N. Higson, R. Plymen and H. Sengun and sponsored by the
London Mathematical Society and the Isaac Newton Institute, will take
place 19-23 July 2021.
There will be four lecture series:
– Basic representation theory of p-adic Lie groups, by Anne-Marie Aubert
– Basic representation theory of realWalter van Suijlekomhttp://www.blogger.com/profile/18443611486145891072noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-27788475466822076572021-02-21T13:45:00.000+00:002021-02-21T13:45:39.030+00:00SHELL BEACH - the search for the final theory, (guest post by Jesper Grimstrup)My book SHELL BEACH - the search for the final theory is now out. In the book, which is written for a general audience, I discuss topics such as noncommutative geometry, loop quantum gravity and the question of a final theory - mixed with a dose of whitewater kayaking and massive (intellectual) waterfallsBest wishes, Jesper Grimstruphttps://www.amazon.com/SHELL-BEACH-search-final-theory-ebook/dp/Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-15511483498175821312020-12-25T17:31:00.000+00:002020-12-25T17:31:12.947+00:00Fields Academy Graduate Courses Starting in January 2021, the Fields Institute in Toronto is going to run various advanced graduate courses in collaboration with Ontario universities. Students from all over the world can either take these courses, or just audit them. For details see here The Fields Academy has an undergraduate training component as well. For details Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-66457898987020808122020-11-02T23:55:00.001+00:002020-11-02T23:56:56.328+00:00The Metric Nature of Matter, Guest Post byJohannes Aastrup and Jesper GrimstrupIn a recent series of papers [1-3], we have discovered a connection between non-perturbative quantum field theory and the (noncommutative) geometry of configuration spaces. In this blog-post, we would like to outline our findings in a non-technical manner intended for readers, who are familiar with the basics of noncommutative geometry and high-energy physics.The noncommutative standard Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-66806195997197055082020-10-14T19:15:00.000+00:002020-10-14T19:15:21.680+00:00Global Noncommutative Geometry Seminar on YouTube With YouTube and Zoom playing a much bigger role now in disseminating knowledge across the globe, it is only natural to have a YouTube channel dedicated to posting talks in an ongoing global noncommutative geometry seminar. The seminar is a collective effort with three nodes in Europe, Americas and Asia. There are many details that still has to be worked out and currently many people are workingMasoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-45638424049235802672020-09-15T18:59:00.000+00:002020-09-15T18:59:35.337+00:00FAREWELL TO A GENIUS We all learned with immense sorrow that Vaughan Jones died on Sunday September 6th.I met him in the late seventies when he was officially a student of André Haefliger but contacted me as a thesis advisor which I became at a non-official level. I had done in my work on factors the classification of periodic automorphisms of the hyperfinite factor and Vaughan Jones undertook the task of AChttp://www.blogger.com/profile/11268275942327566512noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-58882556721920150872020-09-04T07:40:00.000+00:002020-09-04T07:40:31.824+00:00The Noncommutative Geometry SeminarThe Noncommutative Geometry SeminarThis is a virtual seminar on topics in noncommutative geometry, which is open to anyone anywhere interested in noncommutative geometry.Starting September 22 we meet on Tuesdays at 15:00-16:00 (CET) via zoom (link will be distributed via mail)Organizers: Giovanni Landi, Ryszard Nest, Walter van Suijlekom, Hang WangMore infomation on the schedule, and also how to Walter van Suijlekomhttp://www.blogger.com/profile/18443611486145891072noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-38500990122408792582020-02-03T00:40:00.000+00:002020-02-03T00:40:28.369+00:00Advances in Noncommutative Geometry While noncommutative geometry is entering into its fifth decade, we are sure some of this blog's readers were thinking would be appropriate to have a volume of articles by experts looking at its main developments in the past 40 years and looking ahead.The book, Advances in Noncommutative Geometry, dedicated to Alain Connes' 70th birthday, published by Springer late last year, certainly fills Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-24821452722306955402019-10-11T23:20:00.000+00:002019-10-11T23:23:23.689+00:00Sir Michael Atiyah, a Knight Mathematician. A Tribute to Michael Atiyah, an Inspiration and a Friend. By Alain Connes and Joseph KouneiherSir Michael Atiyah was considered one of the world’s foremost mathematicians. He is best known for his work in
algebraic topology and the codevelopment of a branch of
mathematics called topological 𝐾-theory, together with
the Atiyah–Singer index theorem, for which he received
the Fields Medal (1966). He also received the Abel Prize
(2004) along with Isadore M. Singer for their discovery and
Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com1tag:blogger.com,1999:blog-6912603287930240451.post-34942302505104869242019-09-16T18:47:00.000+00:002019-09-16T18:47:22.258+00:00Jami Workshop: Riemann-Roch in characteristic one and related topics
The Johns Hopkins Mathematics Department jointly with the Japan-U.S. Mathematics
Institute (JAMI) plan to organize a workshop on the weekend of October 18-20 2019.
The interactions between the fields of noncommutative arithmetic geometry, tropical geometry, the theory of toposes and mathematical logic, optimization and game theory have matured quite rapidly in the last few years and have KC (= Katia Consani)http://www.blogger.com/profile/12442719430556938476noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-53754410165955865752019-04-09T17:10:00.002+00:002019-04-09T17:10:31.918+00:00Upcoming NCG meetings Noncommutative Geometry Festival 2019 NCG and Representation Theory
Noncommutative Geometry Spring Institue 2019, Nashville
Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-85316368892802347852019-04-08T18:31:00.001+00:002019-04-08T18:31:54.211+00:00Noncommutative manifolds and their symmetriesA conference dedicated to Giovanni Landi on the occasion of his 60th Birthday, Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-80216512040408007492019-01-22T02:29:00.001+00:002019-01-22T02:29:14.578+00:00Operator K-Theory in Geometry, Topology and Representation Theory (Kasparov 70)A conference to mark the occasion of Gennadi Kasparov's 70th birthdayMasoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-8800892156414583052019-01-18T16:02:00.000+00:002019-01-18T16:02:00.800+00:00for a dead friend
It is not surprising that all the honourable men who are manning (what else) this blog did not find it proper to comment on the passing of Sir Michael Atiyah, so I am offering a link to my own:
https://listeningtogolem.blogspot.com/2019/01/the-polar-star-and-life-endgame-elegy.html
Matildehttp://www.blogger.com/profile/01820633659103015340noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-6386204418099119792018-08-03T17:24:00.002+00:002018-08-03T19:48:05.619+00:00Master Class on Noncommutative geometry: spaces, bundles and connectionsRegistration is now open for this master class. For more details please check their website here.
Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-85247488998396116082018-03-07T17:43:00.000+00:002018-03-07T17:44:07.938+00:00Noncommutative Geometry and Index Theory for Group Actions and Singular SpacesThis weeklong workshop will be an opportunity for young researchers
in noncommutative geometry to share their ideas with their peers and
with some of the leaders of the field. Apart from lectures by young
researchers there will be mini-courses by Pierre Albin, Nigel Higson and
Shmuel Weinberger. Topics will include the analysis and geometry of
hypoelliptic operators, group actions on Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-60115484535465040022017-07-17T18:05:00.001+00:002017-07-17T23:02:42.315+00:00Maryam Mirzakhani (May 3, 1977 - July 15, 2017)
Some twenty five years ago when I was told by one of her teachers that she is truly brilliant and exceptional I could have not imagined that I will see this terribly sad day. A shining star is turned off far too soon. Heartfelt condolences to her husband, family, and mathematics community worldwide.
از شمار دو چشم یک تن کم
وز شمار خرد هزاران بیش
"Two eyes are gone
Thousands of minds Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-35959305398264891362017-04-16T19:24:00.000+00:002017-04-30T18:39:56.296+00:00Great Thanks!Let me express my heartfelt thanks to the organizers of the Shanghai 2017 NCG-event
as well as to each participant. Your presence and talks were the most wonderful gift showing so many lively facets of mathematics and physics displaying the vitality of NCG! The whole three weeks were a pleasure due to the wonderful hospitality of our hosts, Xiaoman Chen, Guoliang Yu and Yi-Jun Yao. It is AChttp://www.blogger.com/profile/11268275942327566512noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-36050386038331898562017-04-10T12:02:00.000+00:002017-04-10T12:46:51.366+00:00DAVIDIt is with immense emotion and sorrow that we learnt the sudden death of David Goss.
He was our dear friend, a joyful supporter of our field and a constant source of inspiration through his great work, of remarkable originality and depth, on function field arithmetics.
We are profoundly saddened by this tragic loss.
David will remain in our heart, we shall miss him dearly.AChttp://www.blogger.com/profile/11268275942327566512noreply@blogger.com1tag:blogger.com,1999:blog-6912603287930240451.post-26007174186415843872017-02-07T14:08:00.000+00:002017-02-07T14:08:46.813+00:00Connes 70
I am happy to report that to celebrate Alain Connes' 70th birthday, 3 conferences on noncommutative geometry and its interactions with different fields are planned to take place in Shanghai, China. Students, postdocs, young faculty and all those interested in the subject are encouraged to participate. Please check the Conference webpage for more details.
Masoud Khalkhalihttp://www.blogger.com/profile/03769072750559219167noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-9445241179548942712017-01-03T21:47:00.001+00:002017-01-03T21:47:57.367+00:00Gamma functions and nonarchimedean analysisHappy New Year!
I view blog writing as a great opportunity to reach out to members of the mathematics community and especially the younger members; so in this sense blog writing is, for me, very similar to writing for Math Reviews. I have enjoyed doing both for many years (and many many years for MR!). Recently I wrote a review for MR on the paper ``Twisted characteristic p zeta functions'' Anonymoushttp://www.blogger.com/profile/01874443969277514500noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-45745669549529875042016-07-24T18:43:00.000+00:002016-07-24T18:43:17.791+00:00A motivic product formulaThe classical product formula for number fields is a fundamental tool in arithmetic. In 1993, Pierre Colmez published a truly inspired generalization of this to the case of Grothendieck's motives. In turn, this spring Urs Hartl and Rajneesh Kumar Singh put an equally inspired manuscript on the arXiv devoted to translating Colmez into the theory of Drinfeld modules and the like. Underneath the Anonymoushttp://www.blogger.com/profile/01874443969277514500noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-61700710282770695192016-06-14T01:43:00.002+00:002016-06-14T01:43:49.563+00:00What is a functional equation?Like all number theorists I am fascinated (to say the least) with the functional equation of
classical L-series. Years ago, I came up with a simple characterization of functional equations basically using only complex conjugation. This point being that, via a canonical change of variables (going back to Riemann), such L-series are, up to a nonzero scalar, given by real power series with the Anonymoushttp://www.blogger.com/profile/01874443969277514500noreply@blogger.com0tag:blogger.com,1999:blog-6912603287930240451.post-29671668693068999052016-03-26T23:33:00.002+00:002016-03-26T23:41:53.496+00:00An indirect consequence of the famous Lucas congruence...So, in the course of function field arithmetic, one runs into the binomial coefficients (like one does most everywhere in mathematics); or rather the coefficients modulo a prime p. The primary result about binomial coefficients modulo p is of course the congruence of Lucas. In function field arithmetic
one seems to be unable to avoid the group obtained by permuting p-adic (or q-adic) coefficientsAnonymoushttp://www.blogger.com/profile/01874443969277514500noreply@blogger.com0