Postdoctoral Fellow in Computational Mathematics

The Department of Mathematics Consists of about 120 researchers, teachers and administrative staff and are organized in three main departments: Mathematics, mathematical statistics and calculation matemia. All departments contribute to the basic level, advanced level and postgraduate level while conducting active research. The department is located at the Albano area in Stockholm and offers modern premises and a well-equipped library for both students and researchers.

Within the department, the department for calculating matemia focuses on mathematical modeling and development of calculation methods to study complex systems over several scales - from molecular structures to climate dynamics. The research includes areas such as program logic and batch proof, calculation biology, numerical analysis of partial differential equations (including ice and sea dynamics), calculation statistics and machine learning, and algorithm design and discreet mathematics

More information about us can be found at: Mathematical Department.

Projektbeskrivning

We are looking for a highly motivated postdoctoral to improve and analyze time stepping methods for simulations of glaciers and inland ice dynamics. The background is the need for safer forecasts for how inland ice and glaciers respond to a changed climate.

The project is continued on a stabilization method that makes it possible to use much longer time steps than before. Thanks to the stabilization, the time step is now limited to accuracy rather than numerical stability, but there is still no rigorous understanding of how the accuracy depends on the length of the time stage, which varies greatly during simulation. The project's goal is partly to deepen the theoretical understanding of the stabilized schedule, and partly to translate this understanding into a practical, adaptive algorithm that automatically selects the largest time step that maintains the desired accuracy.

The successful candidate will have the opportunity to influence the research focus and contribute both methodologically and computationally.

Tasks

The postdoctor is expected to further develop theory for convergence of the stabilized time stepping schedule, a work involving analysis of a free strip value problem linked to Stokes equations. Based on this theory, the postdoctor should construct an adaptive algorithm, implement and test the methods in the established ice modeling tool Elmer / Ice, and carry out numerical experiments with application to, for example, Ryder-G The tasks also include interacting with researchers in glaciology, write scientific articles and present results at international conferences.

Eligibility requirements

In order to be authorized for employment as a postdoctoral doctor, the doctoral degree or foreign degree is deemed to correspond to the relevant doctoral degree. The degree must be completed by the employment decision.

Criteria

It is merit, if a doctoral degree or equivalent is exceeding three years before the last application date. If there are special reasons, a previously completed degree can also be considered merit. With special reasons, leave for illness is meant due to illness, parental leave, trust assignments in trade union organizations, service in the total defense, or other similar circumstances and clinical service or the subject area relevant service / assignment.

Applicants must have a foreign doctoral degree, that is, a doctoral degree depicted at an university outside Sweden, or a degree that is considered to correspond to this.

Applicants should have a strong background in numerical analysis or computational science and experience of time stepping methods and finite element method (five), preferably with application in fluid dynamics, mechanics or other variable stripes problems. Previous experience of geoscientific applications is merit but no requirement - subject-specific knowledge can be acquired within the group. Good communication skills and interest in interdisciplinary cooperation, for example with geophysics and glaciology, are highly valued.

At the appointment, special emphasis will be attached to the scientific skill and relevance in the applicant's scientific background.

If the employment

The employment relates to full-time and applies until further notice, at least two years and a maximum of three years, with the possibility of extension if there are special reasons. Access as per agreement.

We are offering

With us you get the dynamics of the interaction between higher education and research that makes Stockholm University to an exciting and creative environment. You work in an international environment and receive preferential terms. The university is located in the National City Park with good connections to the city.

Stockholm University is worth being a workplace that is free from discrimination and gives equal rights and opportunities for everyone.

Contact

Disclosure of the employment is left by Josefin Ahlkrona, ahlkrona@math.su.se.

Application

You are looking for the employment via the Stockholm University's recruitment system. Attach personal letter and CV and the annexes requested in the application form. You as an applicant is responsible for ensuring that the application is complete and that it is the university with the latest date of application.

Instructions for applicants are available on the website: To seek an employment.

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