Weekly bulletin

Find out what's happening this week at MSI.

29
Oct

The moduli of residual perfection II

  • Wednesday, 29 Oct 2025, 3 - 4pm
  • Rm 1.33, Hanna Neumann Building #145

  • Alexander Lai De Oliveira (ANU)

Abstract: The moduli of residual perfection of a complete discrete valuation ring with positive characteristic residue field parametrizes residually perfect extensions of complete discrete valuation rings. In this talk I generalize the moduli of residual perfection over a complete discrete valuation ring to a certain class of rings complete with respect to a Cartier divisor.

30
Oct

The Mathematics of Social Networks

  • Thursday, 30 Oct 2025, 5:30 - 6:30pm
  • Seminar Room 1.33 & 1.37

    Mathematical Sciences Institute

    ANU College of Systems and Society

    Hanna Neumann Building #145, Science Road

    The Australian National University

    Canberra ACT 2600

  • Philippa (Pip) Pattison (University of Sydney and University of Melbourne)

Abstract

In this lecture I describe how mathematical approaches have been used to build understanding of the structure of human social networks and their properties.  Social networks can reflect social and economic ties of many types, such as who-socialises-with-whom, who-collaborates-with-whom, or who-offers-credit-to-whom.  Starting with the simplest assumption of a social network as a random graph, I explain how the interplay between mathematical and empirical studies of networks has led to progressively more sophisticated and effective models.  A number of case examples illuminate the trajectory of model development and illustrate that a key to successful progress has been to allow for endogenous local processes in the formation and dissolution of network ties.  I also point to ways in which the current modelling suite can advance our understanding of some important social outcomes and then touch briefly on active areas of further model development. 

About the speaker

Pattison’s research focuses on the development and application of mathematical and statistical models for social networks and network processes. Her work has broad application, from tracking the spread of infectious diseases to following the recovery of communities after the 2009 Victorian bushfires.

She has published several books, numerous book chapters, scholarly papers and is also a regular invited speaker to international conferences. In 1995 Pattison was elected a Fellow of the Academy of the Social Sciences in Australia and in 2014 Pattison was awarded Professor Emeritus from the University of Melbourne. She is a Fellow of the Royal Society of New South Wales. 

Pattison was named on the Queen’s Birthday 2015 Honours List as an Officer of the Order of Australia for distinguished service to higher education, particularly the study of social network modelling, analysis and theory.

Zoom

https://anu.zoom.us/j/81890526886?pwd=aXChYs7uDvbV25LxSSTLnE7anK6aPv.1

Meeting ID: 818 9052 6886

Password: 008739

Please note the public lecture will be recorded and by attending you consent to be recorded and published online.

26
Oct

Topological methods for time-varying data: theory and applications (Top Time)

  • Monday, 27 Oct 2025, 9am - Friday, 31 Oct 2025, 5pm
  • Mathematical Sciences Institute

    ANU College of Systems and Society

    Seminar Rooms 1.33 & 1.37

    Hanna Neumann Building #145, Science Road

    The Australian National University

    Canberra ACT 2600

Schedule
Abstracts Plenary speakers
Agnese Barbensi (University of Queensland)
Aurore Delaigle (Melbourne University)
Rob Hyndman (Monash University)
Firas Khasawneh (Michigan State University)
Konstantin Mischaikow (Rutgers University)
Elizabeth Munch (Michigan State University)
Philippa Pattison (University of Sydney and University of Melbourne) - Public Lecture
Vanessa Robins (Australian National University)
Hannah Schreiber (Inria Sophia Antipolis)
Denisse Sciamarella (Franco-Argentine Institute for Climate and Impact Studies)
Michael Small (University of Western Australia)
Scientific and Organising Committee
James Morgan (University of Sydney)
James Nichols (Freelance)
Adam Onus (University of Oxford)
Nina Otter (Inria-Saclay)
Katharine Turner (Australian National University)
Registrations

Registrations are open for the Top Time conference. Limited accommodation and travel funding is available to support participants.

Poster Session Reception

If you would like to create a poster on your research to display and discuss with fellow Mathematicians at the Poster session please submit the title for your poster in the webform below.

Poster session – Submission

Contributed Talk Submissions

There will be a limited number of slots for contributed talks. You can submit both a poster and a talk abstract.

Contributed talks - Title and Abstract Submission

Conference dinner

The conference dinner will be held at Holey Moley in the Hijinx Hotel. It will involve finger food and crazy golf. The location is in Canberra CBD and is walking distance from ANU. The cost of the conference dinner is separate to the conference registration fee. 

The cost for the dinner is $58.00 per person and includes the following:

  • 9 holes of golf
  • Pizza and fries to share
  • Cocktail or drink on arrival
  • Reserved area for function
Student/Early Career participant support

Limited accommodation and travel funding is available to support participants. To apply, please complete the application form. Priority for funding will be given to graduate students, postdocs and those without access to other sources of funding. We strongly encourage those applying for support to submit a poster.

Mathematicians from historically underrepresented groups are encouraged to apply. Applicants should try to find alternative sources of funding to complement the amounts they may receive from the conference.

While there is no strict deadline, we will start allocating the budget from 31 May 2025.

Applicants will be informed of decisions via email.

Student/Early Career Participant Support

Accommodation options

ANU Apartments (on campus)

Novotel Canberra - Google Maps

Quest Canberra - Google Maps

QT Canberra - Google Maps

Peppers Gallery Hotel Canberra - Google Maps

Ovolo Nishi - Google Maps

Canberra Accommodation Centre. They are a short tram ride from ANU.

Forrest Hotel and Apartments. They are about a 10 min drive from ANU.

Travel information

General information for visitors to ANU

Conference photos