Welcome to my homepage. I am currently a tenure-track Assistant Professor at the Beijing Institute of Mathematical Sciences and Applications.
Previously, I was a Fields-Ontario Postdoctoral Fellow, holding a joint position at both the Fields Institute for Research in Mathematical Sciences and the University of Toronto, supervised by Professor Robert McCann, Professor Adrian Nachman, Professor Robert Haslhofer, Professor Alexander Nabutovsky and by Professor Boris Khesin.
In the fall of 2022 I participated in the the Thematic Program on Nonsmooth Riemannian and Lorentzian Geometry. Earlier, I was a Postdoctoral Research Associate under the supervision of Professor Andrea Mondino at the Mathematical Institute, at the University of Oxford.
I earned my doctoral degree at the University of Oxford, where I was a member of St John's College, and worked under the supervision of Professor Zhongmin Qian.
For further details, please see my CV (updated on 10.10.2025).
My research primarily focuses on various aspects of optimal transport and related topics. These include more specifically: optimal transport of vector measures, martingale transport and potential theory, extensions of functions, 1-Lipschitz maps, localisation technique and its applications.
If anything above matches your interests and you would like to discuss, you are most welcome to contact me. I am open to any new collaborations - if you see a topic that you would like collaborate on with me, please do send me an email.
Contact details
Beijing Institute of Mathematical Sciences and Applications
No. 544, Hefangkou Village Huaibei Town, Huairou District Beijing 101408
北京市怀柔区 河防口村544号北京雁栖湖应用数学研究院 101408
E-mail: kciosmak[at]bimsa[dot]cn
Phone: (+86) 18210325803