Interactions Between Semigroups and Operator Algebras

24—27 July, 2017

Venue: Noah's on the Beach, Newcastle

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Photos now available

Visit the Gallery for photos from the conference.

Talks now available

Most talks are now available as PDFs. Click on the speakers in the schedule below.

The aim of this workshop is to bring together the world's foremost experts on the theory of semigroups and their relationships to other fields of mathematics such as operator algebras and totally disconnected locally compact groups. This workshop will allow the international leaders in the field to come to Australia to teach young Australian ECRs, and to forge new collaborations with Australian mathematicians.

Operator algebras associated to semigroups can be traced back to a famous theorem of Coburn from the 1960s. The theory has recently been reinvigorated through Xin Li's construction of semigroup C*-algebras. Li's construction has introduced new and interesting classes of C*-algebras, which have deep connections to number theory and dynamical systems. One connection that will be thoroughly explored through this meeting is that to the representation theory of totally disconnected locally compact groups.

Invited Speakers:


Visit the Gallery for photos from the conference.

Confirmed Participants:


Registration is now open, please visit our page at Eventbrite. The cost is $110 for people at AMSI member organisations and $220 for others.

Note that registration for the conference and the sign-up system to submit your abstract are separate and should both be completed.

AMSI Travel Funding

This event is sponsored by the Australian Mathematical Sciences Institute (AMSI). AMSI allocates a travel allowance annually to each of its member universities (for a list of members, see Students or early career researchers from AMSI member universities without access to a suitable research grant or other source of funding may apply to the Head of Mathematical Sciences for subsidy of travel and accommodation out of the departmental travel allowance. Visit for details.


You can submit your abstract in the Abstract System. You will create an account there, but please
note that this is entirely separate to registering and paying for the conference (details above).


The workshop will be held at Noah's on the Beach, opposite Newcastle Beach.


Please click here for a PDF version of the schedule.

09:00 - 09:15
09:15 - 10:00
10:00 - 10:15
10:15 - 11:00
11:00 - 11:30
11:30 - 12:30
12:30 - 14:00
14:00 - 14:45
14:45 - 15:30
15:30 - 16:00
16:00 - 16:45
16:45 - 17:30

Registration and welcome
Morning Tea
Afternoon Tea

Morning Tea
Afternoon Tea

Morning Tea
Afternoon Tea

Morning Tea
Zahra Afsar
Afternoon Tea

Accommodation Suggestions

There are two main areas with hotels and backpacker accommodation — Newcastle East and Honeysuckle, within easy walking distance of each other and the conference venue. Honeysuckle is a popular area with lots of restaurants with great views across the harbour. Additionally, the website sometimes has good deals.

Travelling to Newcastle

From Newcastle Airport
For those arriving at the Newcastle Airport we recommend taking a taxi to Newcastle. The taxi rank is adjacent to the arrivals area of the terminal. Newcastle Taxis can be contacted directly, free-of-charge, on the dedicated taxi phone located in the arrivals end of the terminal.

Alternatively, you can catch the 130 or 131 bus from the Newcastle Airport to the Newcastle Station. From Newcastle Station it is an easy walk to the recommended hotels. For more information and/or to plan your exact trip times see the Sydney Trains or the Port Stephens Coaches timetables.

From Sydney Airport
For those arriving at Sydney Airport we recommend taking the train some of the way to Hamilton where you will need to transfer to a bus to Newcastle. For information and trip planning, please visit

You should take the T2 Airport Line from Domestic or International Airport Stations to Central Station and then the Central Coast & Newcastle Line Hamilton Station. From Hamilton Station you must transfer to a bus to get into the city.

Local Transportation in Newcastle
Newcastle Taxis: bookings can be made online or by calling 133 300 within Australia.

For public transport options, please visit

Organising Committee

Contact Information

If you have any questions, please contact

Juliane Turner

Telephone: (02) 492 15483