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## Simeng WANG

### 王斯萌

Laboratoire de Mathématiques d'Orsay
Bât. 307
Université Paris-Saclay
91405 Orsay Cedex
France

Courrier électronique : simeng.wang AT universite-paris-saclay.fr
Bureau : 3I20

I am currently Hadamard Lecturer at Université Paris-Saclay in the Topology and dynamics team. My research field is functional analysis and operator algebras. I am particularly interested in analysis, probability and dynamics on von Neumann algebras, noncommutative $L_p$-spaces and quantum groups, as well as their applications in quantum information theory.

### Positions

• 2018 - present : Postdoctoral fellow «Hadamard Lecturer», Université Paris-Sud XI, Orsay (France)
• 2016 - 2018 : Postdoctoral fellow, Research group of Roland Speicher, Saarland University, Saarbruecken (Germany)

### Grants and awards

• FMJH grant for Hadamard Lecturer, 2018-2021
• Marek Wacławek Award 2016 (granted by the director of IMPAN for outstanding doctoral theses once a year)
• Granty dla młodych naukowców i doktorantów w IMPAN 2016 (Grants for young researchers and doctoral students at IMPAN)

### Publications and preprints

in peer reviewed journals
• Noncommutative maximal ergodic inequalities associated with doubling conditions (with Guixiang Hong and Ben Liao).
Duke Math. J., 170:2 (2021), 205-246. DOI, ArXiv.
• Singularity of the generator subalgebra in mixed q-Gaussian algebras.
Colloq. Math., 158 (2019), 39-43. DOI, ArXiv.
• Quantum symmetries on noncommutative complex spheres with partial commutation relations.
Infin. Dimens. Anal. Quantum Probab. Relat. Top., 21:4 (2018), 1850028. DOI, ArXiv.
• Remarks on factoriality and q-deformations (with Adam Skalski).
Proc. Amer. Math. Soc., 146:9 (2018), 3813-3823. DOI, ArXiv.
• Young's inequality for locally compact quantum groups (with Zhengwei Liu and Jinsong Wu).
J. Operator Theory, 77:1 (2017), 109-131. DOI, ArXiv.
• Lacunary Fourier series for compact quantum groups.
Comm. Math. Phys., 349:3 (2017), 895-945. DOI, ArXiv.
• $L_p$-improving convolution operators on finite quantum groups.
Indiana Univ. Math. J., 65:5 (2016), 1609-1637. DOI, ArXiv.

preprints

### Some notes, slides and videos of presentations

• On the convergences of random walks on quantum groups: cutoff phenonmenon and its limit profiles (slides). Talk at Operator algebra and operator theory seminar (online), Seoul National University, November 2020.
• Cutoff profiles for quantum Lévy processes and quantum random transpositions (slides). Talk at Conference Entangling Non-commutative Functional Analysis and Geometry of Banach Spaces, CIRM France, October 2020.
• Individual ergodic theorems on von Neumann algebras (slides). Talk at Groups, Operators, and Banach Algebras Webinar, July 2020.
• Pointwise convergence of noncommutative Fourier series (slides, video). Talk at Virtual Noncommutative Analysis Weekly Seminar, July 2020.
• Noncommutative maximal ergodic inequalities for some group actions (slides). Talk at IWOTA 2018, Shanghai, China, July 2018.
• Noncommutative individual ergodic theorems for groups with polynomial growth (slides). Talk at the Christmas Tree Meeting 2017 of the Noncommutative Geometry French network GDR GNC, Orsay, France, December 2017.
• Factoriality of some $q$-deformed von Neumann algebras (video). Talk at the Noncommutative Geometry Seminar, IMPAN Warsaw, Poland, February 2017.
• $L_p$-convolutions, multipliers and lacunarity for compact quantum groups (slides). Talk at the 7th ECM Satellite conference "Compact quantum groups", Greifswald, Germany, July 2016.
• $L_p$-multipliers and lacunarity for compact quantum groups (slides). Talk at the Research Seminar on Free Probability, Saarbrücken, Germany, April 2016.
• Some problems in harmonic analysis on quantum groups (slides). PhD Defense Presentation, Besançon, France, June 2016.

Département de Mathématiques
, Université Paris-Sud, Bât. 307, F-91405 Orsay Cedex ,France