This talk for the WoMBaT workshop is a shorter version of recent presentations on subdifferential calculus with some additional insights that I learned recently from Kaiwen Meng and Minghua Li.
Date and time: 8 November 2016, 11:00am
Location: Southwestern University of Finance and Economics, more info
Date and time: 9 November 2016, 16:30pm
Location: University of Electronic Science and Technology of China, more info
Title: Calculus rules for subdifferentials
Continue reading "Talk on calculus rules for subdifferentials"
Date and time: 3 November 2016, 10:00am
Location: Hangzhou Dianzi University
Date and time: 7 November 2016, 10:00am
Location: Southwest Jiaotong University, more info
Title: Facial structure of convex sets
Continue reading "Talk on facial structure in Hangzhou and Chengdu"
Convexity has seemingly little to do with fractals, however convex sets with fractal facial structure are not hard to imagine. Continue reading "Fractal convex sets"
The meeting will be held in Melbourne (RMIT City Campus, room 8.9.66) on 24–25 November.
The topics of the workshop include error bounds, metric (sub) regularity, Aubin property and calmness, transversality of collections of sets, subdifferential characterisations and applications of these properties to estimating the convergence of fundamental optimisation algorithms. Our keynote is Professor Marco Lopez from the University of Alicante, Spain, who is visiting Australia in November.
Date and Time Tuesday 4 October 2016, 11:00am-12:00pm.
Continue reading "RMITOpt talk: complexity bounds for classic algorithms in conic optimisation"
We'll have an informal workshop on the geometry of polytopes at RMIT on 17 November 2016. For more information see http://www.polytopes.rmitopt.org/.
Jon was a genuine friend and generous mentor: honest, reliable and forgiving. I will forever miss his wit, intelligence and friendly advice.
Speaker: Dr Vera Roshchina, RMIT University
Date and Time: Tuesday 2 August 2016, 11:00am
Title: Subdifferentials of structured functions
I will talk about geometric construction of Fréchet and limiting subdifferentials for finite minima of functions subdifferentiable in the sense of Demyanov-Rubinov. Such functions have convex directional derivatives and under additional assumptions their subdifferentials preserve enough directional information to make such construction possible. For instance, approximate convex functions introduced by Huynh Van Ngai, Dinh The Luc and Michel Théra satisfy such assumptions.
These results are in the same spirit as the classic expressions for the Clarke subdifferential in terms of quasidifferentials originally developed by Demyanov and Rubinov.
The talk will be based on some old papers and recent joint work with Tian Sang (RMIT University).