Jani Virtanen
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Postdoctoral Researcher in Operator Theory and Complex Analysis University of Eastern Finland in Finland
Degree Level
Postdoc
Field of study
Mathematics
Funding
Available
Deadline
Oct 1, 2026
Country
Finland
University
University of Eastern Finland
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About this position
The University of Eastern Finland is inviting applications for a fixed-term Postdoctoral Researcher position in Operator Theory and Complex Analysis at the Department of Physics and Mathematics, Joensuu campus.
The appointment is for two years starting on 1 November 2026 (or as agreed). The successful candidate will join the Research Council of Finland project Spectral and Asymptotic Analysis of Structured Matrices and Operators, which explores spectral theory and asymptotic analysis of structured matrices and operators, Crouzeix theory and numerical ranges, and applications to mathematical physics and random matrix theory.
The role is research-focused and full-time. Main duties include conducting high-quality research in operator theory and complex analysis, preparing manuscripts for publication, publishing scientific results, presenting at conferences and other academic events, and contributing a small amount of teaching and supervision of PhD and Master’s students (up to 5% of the position).
The position offers a salary in accordance with the Finnish university system. The starting salary is approximately EUR 3,985–4,190 per month depending on experience and personal performance. UEF also highlights staff benefits such as flexible multi-location work, occupational health care, staff training, and sports and lunch discounts.
Applicants must hold a doctoral degree in mathematics or another relevant field, with the doctorate completed no more than five years before accepting the post (excluding certain career interruptions). Strong spoken and written English is required, together with a solid background in concrete operator theory, complex analysis, and quantum physics. Experience with Toeplitz and related operators, Riemann–Hilbert problems, numerical ranges, and related applications is considered an advantage.
The application deadline is 1 October 2026 at 23:59 Finnish time. Applications must be submitted via the university’s electronic form and include a CV, publication list, degree certificates, language certificates if applicable, a motivation letter, and any additional documents demonstrating merit. Official translations are required for diplomas not issued in English, Finnish, or Swedish.
Funding details
Available
What's required
A doctoral degree in mathematics or another relevant field is required; the doctorate must not have been completed more than five years before accepting the position (excluding parental leave, military service, and similar interruptions). Applicants must have good spoken and written English and a strong background in concrete operator theory, complex analysis, and quantum physics, demonstrated through publications and interview. An advantage is a strong research background in Toeplitz and related operators, Riemann–Hilbert problems, numerical ranges, and their applications to mathematical physics and random matrix theory. The applicant must meet all requirements by the end of the application period.
How to apply
Apply through the electronic application form by 2026-10-01 23:59 Finnish time. Include a CV, publication list, degree certificates/diplomas, language certificates if needed, a motivation letter (max 2 pages), and other evidence of merits. If any diploma is not in English, Finnish, or Swedish, provide an official English translation.
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