Summary
The Mathematical Institute of Leiden University (Netherlands) and the Centre for Mathematical Sciences of Lund University (Sweden) are inviting applications for a funded 4-year joint PhD candidate position. The research project, titled “Analysis of Inhomogeneous Wave Equations,” investigates nonlinear wave equations with spatial inhomogeneities using functional analysis and dynamical systems under the joint supervision of Prof. Gianne Derks (Leiden) and Dr. Sara Maad Sasane (Lund). Successful completion leads to dual (paired) PhD diplomas from both universities.
Key Information Overview
| Parameter | Details |
| Position / Designation | PhD Candidate / PhD Researcher |
| Host Institutions | Leiden University (Netherlands) & Lund University (Sweden) |
| Faculty / Department | Faculty of Science – Mathematical Institute (Leiden) & Centre for Mathematical Sciences (Lund) |
| Project Title | Analysis of Inhomogeneous Wave Equations |
| Supervisors | Gianne Derks (Leiden) & Sara Maad Sasane (Lund) |
| Duration | 4 Years (1 year Leiden + 2 years Lund + 1 final year Leiden) |
| Contract Hours | 38 – 40 hours/week (Full-time) |
| Remuneration (Leiden) | €3,059 (Year 1) to €3,881 (Year 4) gross/month (Payscale P) |
| Remuneration (Lund) | SEK 35,300 to SEK 38,800 gross/month |
| Requisition ID | 16781 |
| Application Deadline | 15 September 2026 |
Designation
- PhD Candidate / PhD Researcher (Joint Dual Degree Appointment)
Research Area
- Mathematics: Partial Differential Equations (PDEs), Dynamical Systems, Functional Analysis, and Nonlinear Wave Mechanics.
Location
- Primary / Starting Location: Leiden, South Holland, The Netherlands (Years 1 and 4)
- Secondary Location: Lund, Skåne, Sweden (Years 2 and 3)
Eligibility & Qualifications
- Academic Degree: Master’s degree (or equivalent) in Mathematics, Applied Mathematics, or a closely related quantitative field.
- Core Background: Strong foundational knowledge in mathematical analysis, dynamical systems, and differential equations.
- Language Requirements: High proficiency in written and spoken English.
- Research Skills: Ability to conduct theoretical and rigorous analytical research independently and collaborate in an international research team.
Scholarship & Position Description
- Dual Doctoral Degrees: Leads to paired PhD diplomas issued by both Leiden University and Lund University.
- Salary & Benefits:
- Netherlands (Years 1 & 4): €3,059 – €3,881 gross per month under the Collective Labour Agreement (CLA) of Dutch Universities, including pension scheme, paid parental leave, and holiday/end-of-year allowances.
- Sweden (Years 2 & 3): SEK 35,300 – SEK 38,800 gross per month under Lund University employment standards.
- Travel & Training: Travel support is provided to participate in international conferences, workshops, and inter-university seminars.
- Research Setting: Embedded in Leiden’s Analysis and Dynamical Systems Group and Lund’s Partial Differential Equations Group.
How to Apply
Applications must be submitted electronically via the Leiden University career portal:
- Visit the official job application page.
- Click “Apply now” and submit the following required documents (PDF format):
- Detailed Curriculum Vitae (CV).
- Completed Application Form (submitted in place of a standard cover letter).
- Official Academic Transcripts of Bachelor’s and Master’s degrees.
- Contact details of academic references.
- For academic queries, contact Prof. Gianne Derks at
g.l.a.derks@math.leidenuniv.nl.
Last Date to Apply
- 15 September 2026
