[Logica-l] Maryam Mirzakhai, por Terry Tao

[Walter Carnielli]

Novo post em *What's new*

I am totally stunned to learn that Maryam Mirzakhani
 died today
, aged 40, after a
severe recurrence of the cancer she has been fighting for several years.  I
had planned to email her some wishes for a speedy recovery after learning
about the relapse yesterday; I still can't fully believe that she didn't
make it.

My first encounter with Maryam was in 2010, when I was giving some lectures
at Stanford
 - one
on Perelman's proof of the Poincare conjecture, and another on random
matrix theory.  I remember a young woman sitting in the front who asked
perceptive questions at the end of both talks; it was only afterwards that
I learned that it was Mirzakhani.  (I really wish I could remember exactly
what the questions were, but I vaguely recall that she managed to put a
nice dynamical systems interpretation on both of the topics of my talks.)

After she won the Fields medal in 2014 (as I posted about previously on
this blog
),
we corresponded for a while.  The Fields medal is of course one of the
highest honours one can receive in mathematics, and it clearly advances
one's career enormously; but it also comes with a huge initial burst of
publicity, a marked increase in the number of responsibilities to the field
one is requested to take on, and a strong expectation to serve as a public
role model for mathematicians.  As the first female recipient of the medal,
and also the first to come from Iran, Maryam was experiencing these
pressures to a far greater extent than previous medallists, while also
raising a small daughter and fighting off cancer.  I gave her what advice I
could on these matters (mostly that it was acceptable - and in fact
necessary - to say "no" to the vast majority of requests one receives).

Given all this, it is remarkable how productive she still was
mathematically in the last few years.  Perhaps her greatest recent
achievement has been her "magic wand
" theorem
with Alex Eskin , which is basically the
analogue of the famous measure classification and orbit closure theorems of
Marina Ratner , in the
context of moduli spaces instead of unipotent flows on homogeneous spaces.
 (I discussed Ratner's theorems in this previous post
.  By an
unhappy coincidence, Ratner also passed away this month
, aged 78.)  Ratner's
theorems are fundamentally important to any problem to which a homogeneous
dynamical system can be associated (for instance, a special case of that
theorem shows up in my work with Ben Green and Tamar Ziegler on the inverse
conjecture for the Gowers norms, and on linear equations in primes), as it
gives a good description of the equidistribution of any orbit of that
system (if it is unipotently generated); and it seems the Eskin-Mirzakhani
result will play a similar role in problems associated instead to moduli
spaces.  The remarkable proof of this result - which now stands at over 200
pages , after three years of revision and
updating - uses almost all of the latest techniques that had been developed
for homogeneous dynamics, and ingeniously adapts them to the more difficult
setting of moduli spaces, in a manner that had not been dreamed of being
possible only a few years earlier.

Maryam was an amazing mathematician and also a wonderful and humble human
being, who was at the peak of her powers.  Today was a huge loss for
Maryam's family and friends, as well as for mathematics.

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[Logica-l] TABLEAUX/FroCoS/ITP: call for grants

[Elaine Pimentel]

** Call for grants **

TABLEAUX/FroCoS/ITP
25-29 SEPTEMBER 2017 BRASILIA BRASIL

A limited number of travel grants is available for students
who would not otherwise have resources to attend TABLEAUX/FroCoS/ITP,
and whose attendance would benefit both the applicant and the event.
We expect to be able to help with local/travel expenses up to 250 EUR per
student. Applicants should note that grants are limited, and that costs in
excess of the grant will not be reimbursed.

Grants will be awarded based on the grant committee's assessment of
the applicant's genuine financial need, the potential benefit to the
applicant's education and research, and the potential benefit to
TABLEAUX/FroCoS/ITP.  Among those applicants who genuinely could not
attend TABLEAUX/FroCoS/ITP without a grant, the evaluating committee
gives priority to (co-)authors of accepted papers.

Although priority is given to students with active role in the
conferences/workshops, students in other situations are very much
encouraged to apply.

Applications should explain briefly (limited to 2000 characters)

* the current status of the applicant
* the kind of participation of the applicant in TABLEAUX/FroCoS/ITP
* a breakdown of the estimated amount needed

Applications should be sent by August 10th 2017 by email to Elaine
Pimentel (elaine.pimentel at gmail.com). Students should have their
supervisor sent a brief recommendation email (limited to 2000
characters) to the same address and by the same deadline. This letter
should describe the student's work, the benefit to that work of
attending the conference, and an assessment of the student's financial
need.

The award notification date is August 15th, 2017.

The grants will be presented at the conferences; in case a grantee does not
attend, the chairs may transfer the grant to another student or give no
award.

The grants are offered by Springer and by the organisation of the
conferences.

===
Contact Information
===

For more information please contact the local organizers:

Elaine Pimentel (elaine.pimentel at gmail.com)
Daniele Nantes (daniele.nantes at gmail.com)

http://tableaux2017.cic.unb.br
http://frocos2017.cic.unb.br
http://itp2017.cic.unb.br


-- 
Elaine.
-
Elaine Pimentel  - DMAT/UFRN

Address: Departamento de Matemática
Universidade Federal do Rio Grande do Norte
Campus Universitário - Av. Senador Salgado Filho, s/nº
Lagoa Nova, CEP: 59.078-970 - Natal - RN

Phone: +55 84 3215-3820

http://sites.google.com/site/elainepimentel/
Lattes: http://lattes.cnpq.br/3298246411086415


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[Logica-l] (3rd Filomena) Book of Abstracts and Preliminary Program

[João Daniel Dantas]

Olá!

Passando aqui para divulgar que já temos uma versão preliminar da
programação da terceira edição do FILOMENA Workshop e o book of abstracts
já está disponível para download.

Programa: http://filomenaworkshop.weebly.com/preliminary-program.html

Livro de Resumos: http://filomenaworkshop.weebly.com/book-of-abstracts.html

Lembrando também que as inscrições podem ser feitas no nosso site
.

Nesse ano contamos com os seguintes palestrantes convidados: Tuomas Thako
(University of Helsinki), Elaine Pimentel (UFRN), Jonas Arenhart (UFSC) e
Giorgio Venturi (UNICAMP).

Agradecemos a ampla divulgação!

João Daniel Dantas

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