September 2018 - Categories - categories.org.au

category theory in number theory
by Urs Schreiber 28 Sep '18

28 Sep '18

Dear category theorists, in a recent note, David Roberts makes a curious point about the unsettled debate between Mochizuki and Scholze-Stix, who, as you will have heard, do not agree either on Mochizuki's proposed proof of the abc-conjecture, nor on Scholze-Stix's proposed rebuttal of that proof. David points out that the sticking points, at least of that latest exchange, are not in hard number theory but... in basic category theory. See his announcement here thehighergeometer.wordpress.com/2018/09/28/on-mochiukis-report-on-discussio… with a link to the 7-page note here: thehighergeometer.files.wordpress.com/2018/09/mochizuki_final1.pdf This walks the reader through some examples in Mochizuki's arguments, pointing out how basic category theory seems to be the toolboox missing here. This might be an interesting point for interested category theorists to explore further. If David is right about his analysis of Mochizuki's latest "Report", then the whole of his series of articles in the IUTT-series would still be waiting for somebody to go through from a category theorist's perspective. [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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A special issue to the memory of Vera Trnkova
by Jirí Adámek 27 Sep '18

27 Sep '18

THE MEMORY OF VERA TRNKOVA The mathematical journal in which Vera published a number of excellent papers plans a special issue in her memory. The papers will be refereed as usual. The journal is in SCOPUS and in the database "Emerging source citation index" but not in Web of science. All submissions should be sent to me by email. With this exception, 'Information for authors' on the web page https://cmuc.karlin.mff.cuni.cz is valid. Deadline for submissions: December 31, 2018 Expected publication: Fall 2019 I am looking forward to your submissions, Jiri Adamek [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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Octoberfest 2018 - second announcement
by Funk, Jonathon 21 Sep '18

21 Sep '18

The Octoberfest 2018 (City College, CUNY) webpage now includes a list of confirmed speakers and other details. Abstract submission remains open. https://ct-octoberfest.github.io/ Please join us for a tea and reception Friday, October 24, 6pm. Room 4102 The Graduate Center - CUNY 365 Fifth Avenue New York City [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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Augusta University is Hiring
by Harley D. Eades III 20 Sep '18

20 Sep '18

Dear all. The School of Computer and Cyber Sciences at Augusta University is now looking to fill 12 tenure-track vacancies. Deadline: By Dec. 1, 2018, but the sooner the better. The job ad can be found here: https://jobs.acm.org/jobs/tenure-track-and-tenured-positions-at-the-assista… The positions are all open rank and not specific to any one subfield of computer science, and the percent effort between teaching and research will be balanced. However, the ForML Lab is looking to recruit at least one of these positions for our new lab: http://metatheorem.org/formlab/ This means that applications from the categorical logic community are especially welcome. Finally, here is a blog post that explains why I find this exciting: https://blog.metatheorem.org/2018/09/19/Faculty-Search.html If you have any questions regarding the search please contact me (Harley Eades). Very best, Harley Eades and Clément Aubert [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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Professor and Head of School of Mathematics position University of Leeds
by Nicola Gambino 19 Sep '18

19 Sep '18

Dear colleagues and friends, The University of Leeds has just advertised the opening of a position of Professor and Head of School of Mathematics. Please see the website https://jobs.leeds.ac.uk/vacancy.aspx?ref=3757 and the links therein for details and instructions on how to apply. The deadline for applications is Monday 8th October 2018. With best regards, Nicola == Nicola Gambino School of Mathematics, University of Leeds http://www1.maths.leeds.ac.uk/~pmtng/ [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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MSRI semester program "Higher Categories and Categorification" January - May 2020
by Emily Riehl 14 Sep '18

14 Sep '18

Dear colleagues, I am writing to solicit applications for researchers who wish to attend a semester program at the Mathematical Sciences Research Institute in Berkeley, CA to take place from January 21 - May 29, 2020 on the theme of Higher Categories and Categorification. A complementary program on Quantum Symmetries will be happening in parallel. More details about the scientific plan for the program can be found here: http://www.msri.org/programs/323 <http://www.msri.org/programs/323> You’ll note in particular the program’s goal to bring together both users of and experts in higher category theory. MSRI supports research affiliates in three categories: Research Professors (applications due October 1) http://www.msri.org/web/msri/scientific/member-application/research-profess… <http://www.msri.org/web/msri/scientific/member-application/research-profess…> Research Members (applications due December 1) http://www.msri.org/web/msri/scientific/member-application/research-member <http://www.msri.org/web/msri/scientific/member-application/research-member> Postdoctoral Fellows (applications due December 1) http://www.msri.org/web/msri/scientific/member-application/postdoctoral-fel… <http://www.msri.org/web/msri/scientific/member-application/postdoctoral-fel…> I am happy to answer any questions about MSRI or the application process. Logistical questions can also be addressed to Chris Marshall, the MSRI program director (chris(a)msri.org <mailto:chris@msri.org>). On behalf of the organizers, David Ayala, Clark Barwick, David Nadler, Emily Riehl, Marcy Robertson, Peter Teichner, Dominic Verity PS: Considerably more may be found at www.msri.org <http://www.msri.org/>. [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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ETAPS 2019 1st joint call for papers
by Tarmo Uustalu 11 Sep '18

11 Sep '18

****************************************************************** JOINT CALL FOR PAPERS 22nd European Joint Conferences on Theory And Practice of Software ETAPS 2019 Prague, Czech Republic, 6-11 April 2019 http://www.etaps.org/2019 ****************************************************************** -- ABOUT ETAPS -- ETAPS is the primary European forum for academic and industrial researchers working on topics relating to software science. ETAPS, established in 1998, is a confederation of five main annual conferences, accompanied by satellite workshops. ETAPS 2019 is the twenty-second event in the series. -- MAIN CONFERENCES (8-11 April) -- * ESOP: European Symposium on Programming (PC chair Luís Caires, Universidade Nova de Lisboa, Portugal) * FASE: Fundamental Approaches to Software Engineering (PC chairs Reiner Hähnle, Technische Univ Darmstadt, Germany, and Wil van der Aalst, RWTH Aachen University, Germany) * FoSSaCS: Foundations of Software Science and Computation Structures (PC chairs Mikolaj Bojanczyk, University of Warsaw, Poland, and Alex Simpson, University of Ljubljana, Slovenia) * POST: Principles of Security and Trust (PC chairs Flemming Nielson, Danmarks Tekniske Univ, Denmark, and David Sands, Chalmers Tekniska Högskola, Sweden) * TACAS: Tools and Algorithms for the Construction and Analysis of Systems (PC chairs Tomás Vojnar, Brno Univ of Technology, Czech Rep, and Lijun Zhang, Chinese Academy of Sciences, China) TACAS '19 hosts the 8th Competition on Software Verification (SV-COMP). -- INVITED SPEAKERS -- * Unifying speakers: Marscha Chechik (University of Toronto, Canada) Kathleen Fisher (Tufts University, USA) * FoSSaCS invited speaker: Thomas Colcombet (IRIF, France) * TACAS invited speaker: Cormac Flanagan (University of California at Santa Cruz, USA) -- IMPORTANT DATES * Abstracts due: 9 November 2018 23:59 AoE * Papers due: 16 November 2018 23:59 AoE * Rebuttal (ESOP, FoSSaCS, POST): 11 January 00:01 AoE - 14 January 2019 23:59 AoE * Notification: 25 January 2019 * Camera-ready versions due: 15 February 2019 -- SUBMISSION INSTRUCTIONS -- ETAPS conferences solicit contributions of two types: research papers and tool demonstration papers. ESOP and FoSSaCS accept only research papers. FASE, POST and TACAS have multiple types of research papers, see below. All accepted papers will appear in the proceedings and have presentations during the conference. A condition of submission is that, if the submission is accepted, one of the authors attends the conference to give the presentation. Submitted papers must be in English presenting original research. They must be unpublished and not submitted for publication elsewhere (this does not apply to abstracts). In particular, simultaneous submission of the same contribution to multiple ETAPS conferences is forbidden. Submissions must follow the formatting guidelines of Springer's Lecture Notes in Computer Science and be submitted electronically in pdf through the EasyChair author interface of the respective conference. Submissions not adhering to the specified format and length may be rejected immediately. FASE and POST use double-blind review. Like ETAPS 2018, the proceedings of ETAPS 2019 will be published in *gold open access*. The copyright of the papers will remain with the authors. The proceedings will be published in the Advanced Research in Computing and Software Science (ARCoSS) subline of Springer's Lecture Notes in Computer Science series. The publisher's charges for gold open access will be paid by the conference (funded with the participation fees of all participants). There will be no added cost for authors specifically. - Research papers FASE, FoSSaCS and TACAS have a page limit of 15 pp (excluding bibliography) for research papers, whereas POST allows at most 20 pp (excluding bibliography) and ESOP 25 pp (excluding bibliography). Additional material intended for the referees but not for publication in the final version - for example, details of proofs - may be placed in a clearly marked appendix that is not included in the page limit. ETAPS referees are at liberty to ignore appendices and papers must be understandable without them. In addition to regular research papers, TACAS solicits also *case study papers* (with the same page limit as for regular research papers). POST solicits also *systematization of knowledge papers* (with the same page limit as for regular research papers) and *position papers* (max 10 pp, excluding bibliography). Both TACAS and FASE solicit also *regular tool papers* (at most 15 pp, excluding bibliography). - Tool demonstration papers Tool demo papers have a page limit of 6 pp. The individual conferences FASE, POST, TACAS have additional specific requirements on tool demo papers. ESOP and FoSSaCS do not consider tool demonstration papers. -- SATELLITE EVENTS (6-7 April) -- A number of satellite workshops will take place before the main conferences: BEHAPI, CREST, DICE-FOPARA, GaLoP, HCVS, HSB, InterAVT, LiVe, MeTRiD, PERR, PLACES, QAPL, SPIoT. -- HOST INSTITUTION -- ETAPS 2019 is hosted by the School of Computer Science of the Charles University in Prague, the beautiful capital of the Czech Republic. -- ORGANIZERS Jan Kofron and Jan Vitek (general chairs), Barbora Buhnova, Milan Ceska, Ryan Culpepper, Vojtech Horky, Paley Li, Petr Maj, Artem Pelenitsyn, David Safranek -- FURTHER INFORMATION -- Please do not hesitate to contact the organizers at jan.kofron(a)d3s.mff.cuni.cz and j.vitek(a)neu.edu. [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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UPDATED: Postdoc vacancy in **Quantum Circuit Optimisation and Graphical Calculus** at Radboud University, Nijmegen
by Aleks Kissinger 10 Sep '18

10 Sep '18

(Apologies for the second posting. The first ad did not include the deadline.) Dear colleagues, I would like to advertise a postdoc vacancy in the Institute for Computing and Information Sciences at Radboud University in Nijmegen on the topic of: ** Quantum Circuit Optimisation and Graphical Calculus ** This is a one-year position, with a possible extension to 2 years (conditional on available funding). To apply, please send a CV and short cover letter to <aleks(a)cs.ru.nl> by 5 October, 2018. The research will entail applying graphical techniques (notably string diagrams, tensor networks, and the ZX-calculus / related graphical calculi) to quantum circuits for the sake of gate count minimisation, routing of multi-qubit operations, and fault-tolerance. This project consists both of theoretical work and implementation in relevant software tools, e.g. Quantomatic and PyZX. Candidates should have (or will shortly obtain) a PhD degree, and should have experience in at least one of the following areas: - quantum computation, especially circuit optimisation or quantum error correction OR - graphical calculi, the ZX-calculus, rewrite theory and/or categorical quantum mechanics Start dates are flexible, but ideally a candidate should be willing to begin no later than January 2019. The accepted candidate will be classified as a Postdoctoral Researcher, Level 4 in the Dutch university job-ranking system (UFO), with a gross salary of 3173-4033 EUR per month, depending on years of experience since PhD. Best, Aleks Kissinger Assistant Professor iCIS, Radboud University aleks(a)cs.ru.nl [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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PSSL 104 -- second announcement
by Benno van den Berg 07 Sep '18

07 Sep '18

Dear colleagues and friends, This is the second announcement for the 104th Peripatetic Seminar on Sheaves and Logic, to be held in Amsterdam on the weekend of October 6 and 7. We will use the occasion to celebrate the 60th birthdays of Jaap van Oosten and Thomas Streicher. For more information we refer to the website: http://mysite.science.uottawa.ca/phofstra/PSSL18.html In particular, we encourage people who wish to attend to arrange their accommodation as quickly as possible, because Amsterdam is a popular destination. The organizers Benno van den Berg Pieter Hofstra [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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HoTT Electronic Seminar Talks Fall 2018
by Chris Kapulkin 07 Sep '18

07 Sep '18

Dear all, The Homotopy Type Theory Electronic Seminar Talks are back after the summer break! As before, we will meet on alternating Thursdays at 11:30 AM for a 1-hour talk followed by 30-minute discussion. (But note that the first two talks are on consecutive Thursdays.) The coordinates are as follows: Website: https://www.uwo.ca/math/faculty/kapulkin/seminars/hottest.html Mailing list (with the latest updates): https://groups.google.com/forum/#!forum/hott-electronic-seminar-talks Google Calendar: https://calendar.google.com/calendar/embed?src=0a4ik9o5vhkgjlnk6no3ttnuko%4… The inaugural talks of the Fall 2018 edition will be given by: September 20 Andrew Pitts (University of Cambridge) “Axiomatizing Cubical Sets Models of Univalent Foundations” September 27 Dimitris Tsementzis (Rutgers University) “First-Order Logic with Isomorphism” October 11 Kuen-Bang Hou (Favonia) (University of Minnesota) “Cartesian Cubical Type Theory and redtt” We are looking forward to seeing you there! Best wishes, Dan Christensen Chris Kapulkin [For admin and other information see: http://www.mta.ca/~cat-dist/ ]

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