Post-Doctoral Research Visit F/M Reliable triangulation of surfaces that appear in robust control of time-delay systems

Contract type : Fixed-term contract

Renewable contract : Yes

Level of qualifications required : PhD or equivalent

Fonction : Post-Doctoral Research Visit

This position is part of a joint initiative between two Inria research teams: Gamble (Inria Nancy) and Ouragan (Inria Paris), in collaboration with the ANR StratMesh project.

The objective is to develop new methods and reliable visualization tools, specifically dedicated to the study and reliable triangulation of surfaces that are solutions to equations arising in the design of robust controllers for differential and delay differential systems (studied as quasi-polynomials).

Regular travel between the Nancy and Paris teams may be required for this position. Travel expenses will be covered within the limits of the applicable regulations.

Missions:
With the support of the Gamble and Ouragan teams, the successful candidate will classify stable singularities occurring in robust control equations and design an efficient algorithm to triangulate the implicit solution surface of these equations.

For further information on the proposed research topic:
A state-of-the-art review, bibliography, and scientific references are available at: https://homepages.loria.fr/GMoroz/postdocs/triangulation_automatique_2026.pdf

Collaboration:
The recruited candidate will work with researchers from the ANR StratMesh project (Gamble and Ouragan teams), who are collaborating to develop new reliable methods for control problems.

Main Activities:

• Analyze and classify stable singularities appearing in robust control systems and delay systems (quasi-polynomial equations).
  Propose new reliable methods for robust control (H∞) to determine the robustness radius γ as a function of the system's physical parameters.
• Develop algorithms, reliable visualization tools, and software capable of handling surfaces with singular points and self-intersections.
• Test and improve state-of-the-art numerical algorithms for triangulating perturbed singular curves or surfaces.
• Write scientific documentation, research reports, and associated publications.

Technical Skills and Requirements. Knowledge of symbolic and numerical methods, or computational geometry (stratification and triangulation).Solid background in linear algebra and differential equations to address control theory (H∞ methods) and linear delay differential systems. Programming skills for developing visualization software.

Languages. Fluent English (reading, writing, speaking) is essential for writing publications and international collaboration.

Interpersonal Skills. Ability to work effectively in a team within an inter-laboratory project (Inria Nancy and Inria Paris).Strong autonomy in research.

• Subsidized meals
• Partial reimbursement of public transport costs
• Leave: 7 weeks of annual leave + 10 extra days off due to RTT (statutory reduction in working hours) + possibility of exceptional leave (sick children, moving home, etc.)
• Possibility of teleworking (after 6 months of employment) and flexible organization of working hours
• Professional equipment available (videoconferencing, loan of computer equipment, etc.)
• Social, cultural and sports events and activities
• Access to vocational training
• Social security coverage

€2788 gross/month

General Information

• Theme/Domain : Algorithmics, Computer Algebra and Cryptology
  Scientific computing (BAP E)
• Town/city : Villers lès Nancy
• Inria Center : Centre Inria de l'Université de Lorraine
• Starting date : 2026-11-01
• Duration of contract : 1 year
• Deadline to apply : 2026-10-11

Instruction to apply

Defence Security :
This position is likely to be situated in a restricted area (ZRR), as defined in Decree No. 2011-1425 relating to the protection of national scientific and technical potential (PPST).Authorisation to enter an area is granted by the director of the unit, following a favourable Ministerial decision, as defined in the decree of 3 July 2012 relating to the PPST. An unfavourable Ministerial decision in respect of a position situated in a ZRR would result in the cancellation of the appointment.

Recruitment Policy :
As part of its diversity policy, all Inria positions are accessible to people with disabilities.

Contacts

• Inria Team : GAMBLE
• Recruiter :
  Moroz Guillaume / [email protected]

The keys to success

About Inria

Inria, the French national institute for research in digital science and technology, supports the French government in national research and innovation strategies in the digital field, acting as Digital Programs Agency. Inria leads over 300 research and innovation projects with its 3,500 scientists, engineers, and support staff, in partnership with universities and the digital ecosystem (businesses, entrepreneurs, and public stakeholders). Together, we explore strategic fields such as artificial intelligence, cybersecurity, quantum computing, cloud technologies, digital transformation in healthcare, digital twins, and digital technologies for defence. We develop practical solutions such as software, tech startups, partnerships with national companies, and cutting-edge training programmes. Our goal is to drive scientific, technological, and industrial excellence to ensure France’s digital sovereignty.