## MMF-AIMA CANADA EVENT AT FIELDS

MMF-AIMA Canada present:

The MMF program and AIMA Canada are proud to present a panel discussion
and networking event on the Canadian hedge fund industry.

Participants from Picton Mahoney Asset Management, Waratah Advisors,
Arrow Capital Inc., Scotia Capital Inc. - Prime Finance,
UTAM (University of Toronto Asset Management) and other firms will
be participating and attending.

industry to succeed - as told by industry insiders.

Date: Tuesday, July 19, 2011
Time: 4:00 - 4:30 pm Registration
4:30 - 6:00 pm Panel discussion
6:00 - 7:00 pm Reception and networking

Location: Fields Institute
222 College Street
Toronto, Ontario
M5T 3J1 Canada

## CRM INDUSTRIAL PROBLEM-SOLVING WORKSHOP IN AUGUST

Dear students and postdocs,

There will be an industrial problem-solving workshop at the CRM in

http://www.crm.umontreal.ca/probindustriels2011/index_e.php

To learn about the problems that will be studied:

http://www.crm.umontreal.ca/probindustriels2011/problemes_e.php

There are some funds available to support graduate students.  There may
also be funds to support postdocs --- I don't know.

sincerely,
Mary Pugh

## Departmental PhD Thesis Exam – Ioannis Anapolitanos

Everyone welcome.  Refreshments will be served in the Math
Lounge before the exam.
Monday, July 18, 2011, 3:10 p.m., in BA 6183, 40 St. George St.
PhD Candidate: Ioannis Anapolitanos
Thesis Title:  On van der Waals forces

Thesis abstract:
The van der Waals forces, which are forces between neutral atoms and molecules, play an important role in physics
(e.g. in phase transitions), chemistry (e.g. in chemical reactions) and biology (e.g. determining properties of DNA).
These forces are of quantum nature and it is long being conjectured and experimentally verified that they have universal
behaviour at large separations: they are attractive and decay as the inverse sixth power of the pairwise distance between
the atoms or molecules. In this thesis we prove the van der Waals law under the technical condition that ionization energies
(energies of removing electrons) of atoms are larger than electron affinities (energies of adding electrons). This condition
is well justified experimentally as can be seen from the table,
Atomic number Element Ionization energy Electron affinity
------------  ------- ----------------- -----------------
1             H       313.5             17.3
6             C       259.6             29
8             O       314.0             34
9             F       401.8             79.5
16            S       238.9             47
17            Cl      300.0             83.4
where we give ionization energies and electron affinities for a small sample of atoms, and
is obvious from heuristic considerations (the attraction of an electron to a positive ion is
much stronger than to a neutral atom), however it is not proved so far rigorously. We verify
this condition for systems of hydrogen atoms. With an informal definition of the cohesive
energy $W(y)$, $y = (y_1, ..., y_M)$ between $M$ atoms as the difference between the lowest
(ground state) energy, $E(y)$, of the atoms with their nuclei fixed at the positions
$y_1, ..., y_M$ and the sum, $\sum_{j=1}^M E_j$, of lowest (ground state) energies of the
non-interacting atoms, we show that for $| y_i - y_j |$, $i,j \in \{ 1, ..., M \}$, $i \ne j$,
large enough,
$$W(y) = \sum_{i<j}^{1,M} \frac{\sigma_{ij}}{|y_i-y_j|^6} + O ( \sum_{i<j}^{1,M} \frac{1}{|y_i-y_j|^7} )$$
where $\sigma_{ij}$ are in principle computable positive constants depending on the nature of the atoms
$i$ and $j$.

A copy of the thesis can be obtained by contacting  ioannis.anapolitanos@utoronto.ca.

announcement, Exam PhD      

## 2011-12 Graduate Studies in Math Handbook

The 2011-12 Graduate Studies in Mathematics Handbook is
now up on the web:

Hard copies of the handbook will be placed in student mailboxes
within the next several weeks.

The 2011-12 mathematics graduate course descriptions and
tentative timetable are finally on-line.  The timetable is
still a work in progress.

You can find the descriptions at

and the timetable at

The steps to enrol in courses are as follows

1.  request course selection on www.rosi.utoronto.ca anytime from
August 8, 2011 to September 21, 2011.

2.  submit enrolment form (http://www.sgs.utoronto.ca/Assets/SGS+Digital+Assets/current/Student+Forms/Enrollment_Form.pdf)
to Ida to get requested course(s) approved.  Course selection will be
approved soon after an enrolment form is received.

3.  If you wish to register in an undergraduate course for non-credit,
graduate students can start to request from August 11.  Courses are
may be limited enrolment and you may be on a waiting list.  The sooner
you request undergraduate courses the better; they fill up quickly.

will require the approval of the other department before math
department approval.  Such approval can be obtained on the
enrolment form (see item 2. above).

coordinator, Prof. Dror Bar-Natan, at drorbn@math.toronto.edu,

6.  The absolute deadline to obtain course approval is September 26.
Beyond this date, a petition will be required for School of Graduate
Studies.

If you have any questions on the above, or any other matters, please
do not hesitate to contact me at ida@math.toronto.edu.

Ida

announcement, Course Request, deadline      

## Coffee Social for First in the Family Graduate Students

Are you the first in your family to attend graduate school?
Join us for a coffee social on Tuesday, June 28th at 5:00pm at the

Â· Meet and connect with others who are the first in their families to
pursue higher education

Â· Graduate students from all disciplines are welcome to attend this
informal social

Coffee Social for First in the Family Graduate Students
Tuesday, June 28th, 5:00pm

(If you are interested in this event, but cannot attend, please feel free
to contact Tetiana. There will be future events, so you can be added
to our email list.)

## SGS Regulations re PhD Program Extensions

The following information has been sent to all currently registered
students from SGS. It is important to note the following:

PhD students who commence their progam after September 1, 2010
--------------------------------------------------------------

For PhD students who begin their program after September 1, 2010
and who do not complete their PhD within the time limit
of six years, lapsed registration will no longer be allowed,
Lapsed registration is the current practice for students who started
before September 2010. Mandatory registration will be required.
You can apply for extensions to a maximum of 4 years.
The first two extensions require only
departmental approval, the remaining two must have approval by
both the department and SGS.  If you do not complete the PhD
within this 10 year period, the degree is forfeited.
In the extension years, all PhD students will pay fees at 50% of
the domestic rate, plus sessional incidental and ancillary fees.

PhD students who commenced in September 2010
--------------------------------------------

This group may lapse and seek reinstatement only if they are still
within the maximum allowable time for the degree program (10 years).
Reinstated PhD students must pay fees for any session(s) in which
they did not register including program extension fees.

PhD students who began their program prior to September 1, 2010
---------------------------------------------------------------

These students have two options.
They may "opt-in" to the new extension arrangements listed above
or they may follow the regulations that were in place when
they began their program.  Students who do not "opt in" and seek
a program extension after the six-year period will be assessed
full-time fall/winter program fees for the extension period.

This may be all very confusing, so if you have any questions
please just drop by my office and we can discuss this on an
individual basis.

Thanks,

Ida

## MGSA Midsummer Potluck Dinner and Ceili – June 25

Dear all,

This is a reminder that the MGSA is organizing a Midsummer Potluck
Dinner and Ceili that will take place at the Hart House Music Room
on Saturday June 25th, at 7pm. Ceili will begin at 8pm.

evening of Irish music and dance in the beautiful architectural
setting of Hart House!

Ceili is a traditional Irish social gathering with music and dancing.
There will be a professional ceili caller (a person who explains easy
ceili dances), so no experiece is necessary to participate. Some of
you already did ceili at the Halloween potluck last year.

Please RSVP by Monday, June 20th to nataliya.laptyeva@utoronto.ca
indicating

1) how many guests will accompany you, and
2) what food are you planning to bring (so that we don't end
up with 20 desserts).

Please bring the amount of food that is enough for you and your
guests.

Looking forward to seeing you there!

Nataliya

## Departmental PhD Thesis Exam – Brian Pigott

Everyone welcome:

DEPARTMENTAL PHD THESIS EXAM
----------------------------

Friday, June 17, 2011, 3:10 p.m., in BA 6183

PhD Candidate:  Brian Pigott

Thesis title:   Low Regularity Stability for Subcritical Generalized
Korteweg-de Vries Equations

Thesis abstract:

In this thesis we prove polynomial-in-time upper bounds for the
orbital instability of solitons for subcritical generalized
Korteweg-de Vries equations in $H^{s}_{x}(\R)$ with $s < 1$.
By combining coercivity estimates of Weinstein with the $I$-method
as developed by Colliander, Keel, Staffilani, Takaoka, and Tao,
we construct a modified energy functional which is shown to be
almost conserved while providing us with an estimate of the
deviation of the solution from the ground state curve. The iteration
of the almost conservation law for the modified energy functional
over time intervals of uniform length yields the polynomial upper
bound.

A copy of the thesis can be obtained by contacting
bpigott@math.toronto.edu.

Refreshments will be served in the Math Lounge before the exam.

## Fields Institute Workshop: Extreme Ocean Waves, June 13-16

Dear All,

We are running a workshop on mathematics and oceanography at the
Fields Institute on June 13 - 16, 2011. The purpose is to bring
together mathematicians and ocean scientists to confer on the
present state of research and the current body of knowledge
on ocean dynamics, and in particular on tsunami predictions
and the dynamics of rogue waves.  There is a sense of urgency
in the ocean sciences and the mathematics
communities over these questions, due to the very recent tsunami
disaster in Japan.
Our purpose is to inform the mathematics community about problems
of prediction and of description of extreme ocean waves, and
in particular the role that can be
played by mathematical tools and techniques. As well, our purpose
is to provide a venue from which collaborations are developed
between the two communities of mathematicians and ocean scientists.

You are all welcome to attend the workshop, which has no
Walter and Catherine