Zéphyr Salvy

I am currently a post-doctoral researcher at TU Wien under the supervision of Michael Drmota.

I did my PhD at Université Gustave Eiffel under the supervision of Marie Albenque and Éric Fusy between 2021 and 2024. Here are my manuscript and my defence slides.

I am interested in random planar maps using tools from different branches of combinatorics: analytic combinatorics, enumerative combinatorics, bijective combinatorics, as well as probability. I also like algorithms and I have coded a random map generator according to a Boltzmann law described in the paper "A phase transition in block-weighted random maps" written in collaboration with William Fleurat (check the paper to see the cool pictures!).

Don't hesitate to come and talk to me about these subjects (or anything else), by email or in person.

firstname.lastname@tuwien.ac.at

Publications

• Unified study of block-weighted planar maps: combinatorial and probabilistic properties (2024), PhD thesis;
• Phase transition for tree-rooted maps (2024), with Marie Albenque and Éric Fusy, AofA'24;
• A phase transition in block-weighted random maps (2024) with William Fleurat, Electronic Journal of Probability;
• Unified study of the phase transition for block-weighted random planar maps (2023), Eurocomb’23.

Talks and slides

• 16 May 2025: Graz Combinatorics Seminar, TU Graz, Graz, Austria (abstract);
• 10 April 2025: CAKE seminar, TU Wien, Vienna, Austria;
• 25 March 2025: CALIN team seminar, LIPN, Villetaneuse, France (abstract, video);
• 16 December 2024: PhD defence, UGE, Champs-sur-Marne, France;
• 19 November 2024: Arbeitsgemeinschaft Diskrete Mathematik, University of Vienna, Vienna, Austria;
• 31 October 2024: SFB Reading group on bijections for planar maps, TU Wien, Vienna, Austria (suggested material);
• 24 September 2024: SFB Kick-off meeting, Payerbach, Austria (abstract);
• 17 June 2024: AofA 2024, Bath, United Kingdom (recording);
• 12 March 2024: Journées Aléa 2024, CIRM, Marseilles, France (abstract);
• 5 February 2024: Journées de Combinatoire de Bordeaux, LaBRI, Bordeaux, France (abstract);
• 15 November 2023: Probabilités de Demain: géométrie aléatoire, IHP, Paris, France (abstract);
• 27 October 2023: LACIM team seminar, UQÀM, Montréal, Canada (abstract);
• 02 October 2023: Probability and Geometry in, on and of non-Euclidian spaces, CIRM, Marseilles, France;
• 01 September 2023: Eurocomb'23, Prague, Czech Republic;
• 13 September 2022: CALIN team seminar, LIPN, Villetaneuse, France (abstract, video);
• 24 June 2022: Journée cartes, IPhT, Gif-sur-Yvette, France (abstract);
• 11 May 2022: LIGM Doctoral researchers' seminar, UGE, Champs-sur-Marne, France;
• 22 March 2022: Journées Aléa 2022, CIRM, Marseilles, France (abstract).

Teaching

2023-2024

1. System programming (INFO2 ESIPE);
2. Advanced databases (L3);
3. System programming (L3).

2022-2023

1. Databases (L2);
2. Architecture of computer systems (L2);
3. Advanced databases (L3).

2021-2022

1. Object-oriented programming (L3);
2. Web programming (L1);
3. Architecture of computer systems (L2).

Responsibilities and organisation

2024-2025

• Organiser of the Discrete Mathematics Working Group of the University of Vienna and the Technical University of Vienna.

2023-2024

• Organiser of LIGM doctoral researchers' "back to work" day, where I presented a collaborative "survival guide" for doctoral researchers in LIGM (the document if private but you can ask for it via email);
• Elected reprensentative of doctoral researchers in the university academic council;
• Elected reprensentative of non-permanent researchers in the laboratory council;
• Member of the "Equality" group against sexual and sexist violence in the computer science teaching departement (IGM);
• Organiser of the enumerative combinatorics working group of the LIGM.

2022-2023

• Elected reprensentative of non-permanent researchers in the laboratory council;
• Organiser of the LIGM doctoral researchers' seminar;
• Organiser of the French Informatics Society's "Around the doctorate. What can you do with a PhD in Computer Science? Valuing skills acquired during a doctorate for a multiplicity of careers" day in LIGM.