Month: September 2025

Optimisation Days 2025 at UNSW Sydney, 11-12 November, 2025

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Dear friends and colleagues,

We are excited to invite you to Optimisation Days 2025 at UNSW Sydney, a workshop bringing together researchers from across the broad field of mathematical optimisation. The event offers a platform for presenting and discussing both established and emerging trends, spanning theoretical, computational, and applied perspectives. Whether you’re working in pure optimisation theory, numerical methods, modelling, applications, or somewhere in between, we welcome your contributions. 

Key Details

  • Website:  http://unsw.to/optdays
  • Dates: 11-12 November 2025 
  • Venue: Room 4082, Anita B. Lawrence Centre, UNSW Sydney, School of Mathematics & Statistics
  • Registration deadline: by 30 September 2025 
  • How to register: via the UNSW registration form 
  • A special NEXUS Lecture by James Saunderson on the afternoon of 12 November, followed by a reception. 

Registration is free for all participants.  

Please share this invitation with colleagues, students, and anyone who may be interested in attending or presenting.

We look forward to seeing you at the workshop!
Mareike, Michelle, Sarat, and Vera

events, news, Seminars

69th Annual Meeting of the Australian Mathematical Society

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Call for Abstracts in the Special Session “Optimisation”

Dear MOCAO members,

The 69th Annual Meeting of the Australian Mathematical Society (AustMS Meeting 2025) will take place from the 9th to the 12th of December 2025 at La Trobe University, Melbourne, Australia. A website for the conference is available at:

https://www.austms2025.org.au

It is our great pleasure to invite you to participate in the special session “Optimisation” and hope that you will agree to present a 25-minute talk.

This special session will focus on new mathematical and computational developments and their applications in all areas of continuous and discrete optimisation. Submissions related to applications of optimisation in data science, as well as data science applications in optimisation, are also welcome. We are delighted to have Jein-Shan Chen (National Taiwan Normal University) and Andrew Eberhard (RMIT University) as our keynote speakers.

As the session will have a maximum of 25 speakers, please let us know your interest to present by October 15, 2025.

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WOMBAT2025

Dear friends and colleagues,

We are delighted to invite you to Workshop on Optimisation, Metric Bounds, Approximation and Transversality (WOMBAT 2025), a broad and inclusive workshop covering all aspects of mathematical optimisation. Join us to explore new ideas, share knowledge, and build connections! We welcome contributions on any topic related to mathematical optimisation: theoretical, computational, or applied.

Website: https://wombat.mocao.org/ 

Location: University of Queensland, Brisbane

Dates: 26-28 November 2025

Registration: Register here

Abstract submission deadline: 24 October 2025

Keynote Speakers: Stephen Wright (University of Wisconsin–Madison), and Dmytro Matsypura (University of Sydney)

Registration is completely free for all participants.

We also have limited funds available to support student travel: students can apply for financial assistance through the registration form.

Please feel free to share this invitation with your colleagues, students, and broader network who may be interested in attending or presenting.

For any questions, feel free to contact us: wombatconference2025@gmail.com

We look forward to seeing you in Brisbane!

Warm regards,

Fred, Alexander, and Oscar

events, news, Seminars ,

About the Extremal Principle: From Convex Analysis to Nonsmooth Analysis (Geometric Considerations)

Hello everyone,

Please join us for a DMG Mathematics Seminar, held at Deakin CBD campus (please contact j.ugon@deakin.edu.au if you would like to attend in person), and on zoom:

https://deakin.zoom.us/j/84035502989?pwd=tIuy66p0Uc4fxO9IDjbagAVDopJ3wu.1

Friday, September, 5, 11AM (Melbourne).

Title: About the Extremal Principle: From Convex Analysis to Nonsmooth Analysis (Geometric Considerations)

By: Prof Alexander Kruger, Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi

Minh City, Vietnam

Abstract:  Since the extremal principle was introduced in 1980, it has proved to be one of the key tools in nonsmooth optimization and variational analysis, serving as a substitution for the classical convex separation theorem when the convexity assumptions are not satisfied. Several extensions of the extremality property of collections of sets have been introduced as well as several extensions of the extremal principle.

In this talk, I am going to present and discuss extremality, local extremality, stationarity and approximate stationarity properties of collections of sets and the corresponding (extended) extremal principle.

References

Kruger, A.Y., Mordukhovich, B.S.: Extremal points and the Euler equation in nonsmooth optimization problems. Dokl. Akad. Nauk BSSR 24(8), 684–687 (1980)

Kruger, A.Y.: Weak stationarity: eliminating the gap between necessary and sufficient conditions. Optimization 53(2), 147–164 (2004)

Bui, H.T., Kruger A.Y.: About extensions of the extremal principle. Vietnam J. Math. 46(2), 215–242 (2018)

Bui, H.T., Kruger A.Y.: Extremality, stationarity and generalized separation of collections of sets. J. Optimization Theory Appl. 182(1), 211–264 (2019)

Cuong, N.D., Kruger, A.Y., Thao, N.H.: Extremality of families of sets. Optimization 73(12), 3593–3607 (2024)

Cuong, N.D., Kruger, A.Y.: Generalized separation of collections of sets. arXiv: 2412.05336

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