{"data":{"id":180410,"slug":"postdoktor-i-berakningsmatematik","type":"job","title":"Postdoctoral Researcher in Computational Mathematics","description":"The Department of Mathematics comprises approximately 120 researchers, teachers, and administrative staff and is organized into three main divisions: Mathematics, Mathematical Statistics, and Computational Mathematics. All divisions contribute to education at the undergraduate, graduate, and doctoral levels while conducting active research. The Department is located in the Albano area in Stockholm and offers modern facilities and a well-equipped library for both students and researchers.\nWithin the Department, the Division of Computational Mathematics focuses on mathematical modeling and development of computational methods for studying complex systems across multiple scales\u2014from molecular structures to climate dynamics. The research encompasses areas such as program logic and proof theory, computational biology, numerical analysis of partial differential equations (including ice and ocean dynamics), computational statistics and machine learning, as well as algorithm design and discrete mathematics such as combinatorics and optimization.\nMore information about us can be found at: Department of Mathematics.\nProject Description\nWe are seeking a highly motivated postdoctoral researcher to improve and analyze time-stepping methods for simulating the dynamics of glaciers and ice sheets. The background is the need for more reliable predictions of how ice sheets and glaciers respond to a changing climate.\nThe project builds upon a stabilization method that makes it possible to use much longer time steps than previously. Due to the stabilization, the time step is now limited by accuracy rather than numerical stability, but there is still a lack of rigorous understanding of how accuracy depends on the length of the time step, which varies significantly during a simulation. The project's goals are to deepen the theoretical understanding of the stabilized scheme and to translate this understanding into a practical, adaptive algorithm that automatically selects the largest time step that maintains the desired accuracy.\nThe successful candidate will have the opportunity to influence the research direction and contribute both methodologically and computationally.\nResponsibilities\nThe postdoctoral researcher is expected to further develop theory for convergence of the stabilized time-stepping scheme, work that involves analysis of a free boundary value problem coupled to the Stokes equations. Based on this theory, the postdoctoral researcher will construct an adaptive algorithm, implement and test the methods in the established ice modeling tool Elmer\/Ice, and conduct numerical experiments with applications to, for example, Ryder Glacier in northern Greenland. The responsibilities also include collaborating with researchers in glaciology, writing scientific articles, and presenting results at international conferences.\nQualification Requirements\nTo be eligible for employment as a postdoctoral researcher, a doctoral degree or a foreign degree deemed equivalent to a relevant doctoral degree is required. The degree must be completed by the time the employment decision is made.\nEvaluation Criteria\nIt is meritorious if the doctoral degree or equivalent was completed no more than three years before the final application deadline. If there are special circumstances, an earlier completed degree may also be considered meritorious. Special circumstances refer to leave due to illness, parental leave, positions of trust within labor organizations, military service, or other similar circumstances, as well as clinical work or work\/assignments relevant to the field of study.\nApplicants must hold a foreign doctoral degree, that is, a doctoral degree completed at an institution outside Sweden, or a degree deemed equivalent to this.\nApplicants should have a strong background in numerical analysis or computational science and experience with time-stepping methods and the finite element method (FEM), preferably with applications in fluid dynamics, mechanics, or other moving boundary value problems. Previous experience with geoscience applications is meritorious but not required\u2014subject-specific knowledge can be acquired within the group. Good communication skills and interest in interdisciplinary collaboration, for example with geophysics and glaciology, are highly valued.\nIn the appointment, particular emphasis will be placed on scientific proficiency and the relevance of the applicant's scientific background.\nAbout the Employment\nThe employment is full-time and is valid until further notice, but for a minimum of two years and a maximum of three years, with the possibility of extension if there are special circumstances. Start date by agreement.\nWe Offer\nWith us, you get the dynamics of the interaction between higher education and research that makes Stockholm University an exciting and creative environment. You work in an international environment and receive favorable terms. The University is located in the National City Park with good connections to the city center.\nStockholm University is committed to being a workplace free from discrimination and providing equal rights and opportunities for all.\nContact\nInformation about the employment is provided by Josefin Ahlkrona, ahlkrona@math.su.se.\nApplication\nYou apply for the position via Stockholm University's recruitment system. Attach a personal letter and CV along with any attachments requested in the application form. As an applicant, you are responsible for ensuring that your application is complete and submitted to the University by the final application deadline.\nInstructions for applicants can be found on the webpage: how to apply for a position.\nStockholm University contributes to the development of a sustainable democratic society through knowledge, enlightenment, and the pursuit of truth.","language":"sv","is_translated":true,"title_original":"Postdoktor i ber\u00e4kningsmatematik","description_original":"Matematiska institutionen best\u00e5r av cirka 120 forskare, l\u00e4rare och administrativ personal och \u00e4r organiserad i tre huvudsakliga avdelningar: Matematik, Matematisk statistik och Ber\u00e4kningsmatematik. Samtliga avdelningar bidrar till utbildning p\u00e5 grundniv\u00e5, avancerad niv\u00e5 och forskarniv\u00e5 samtidigt som de bedriver aktiv forskning. Institutionen \u00e4r bel\u00e4gen p\u00e5 Albanoomr\u00e5det i Stockholm och erbjuder moderna lokaler samt ett v\u00e4lutrustat bibliotek f\u00f6r b\u00e5de studenter och forskare.\nInom institutionen fokuserar Avdelningen f\u00f6r ber\u00e4kningsmatematik p\u00e5 matematisk modellering och utveckling av ber\u00e4kningsmetoder f\u00f6r att studera komplexa system \u00f6ver flera skalor \u2013 fr\u00e5n molekylstrukturer till klimatdynamik. Forskningen omfattar omr\u00e5den som programlogik och satsbevisning, ber\u00e4kningsbiologi, numerisk analys av partiella differentialekvationer (inklusive is- och havsdynamik), ber\u00e4kningsstatistik och maskininl\u00e4rning, samt algoritmdesign och diskret matematik s\u00e5som kombinatorik och optimering.\nMer information om oss finns p\u00e5: Matematiska institutionen.\nProjektbeskrivning\nVi s\u00f6ker en mycket motiverad postdoktor f\u00f6r att f\u00f6rb\u00e4ttra och analysera tidsstegningsmetoder f\u00f6r simuleringar av glaci\u00e4rers och inlandsisars dynamik. Bakgrunden \u00e4r behovet av s\u00e4krare prognoser f\u00f6r hur inlandsisar och glaci\u00e4rer svarar p\u00e5 ett f\u00f6r\u00e4ndrat klimat.\nProjektet bygger vidare p\u00e5 en stabiliseringsmetod som g\u00f6r det m\u00f6jligt att anv\u00e4nda mycket l\u00e4ngre tidssteg \u00e4n tidigare. Tack vare stabiliseringen begr\u00e4nsas tidssteget numera av noggrannhet snarare \u00e4n numerisk stabilitet, men det saknas fortfarande en rigor\u00f6s f\u00f6rst\u00e5else f\u00f6r hur noggrannheten beror p\u00e5 tidsstegets l\u00e4ngd, som varierar kraftigt under en simulering. Projektets m\u00e5l \u00e4r dels att f\u00f6rdjupa den teoretiska f\u00f6rst\u00e5elsen av det stabiliserade schemat, dels att oms\u00e4tta denna f\u00f6rst\u00e5else i en praktisk, adaptiv algoritm som automatiskt v\u00e4ljer det st\u00f6rsta tidssteg som bibeh\u00e5ller \u00f6nskad noggrannhet.\nDen framg\u00e5ngsrika kandidaten kommer att ha m\u00f6jlighet att p\u00e5verka forskningsinriktningen och bidra b\u00e5de metodologiskt och ber\u00e4kningsm\u00e4ssigt.\nArbetsuppgifter\nPostdoktorn f\u00f6rv\u00e4ntas vidareutveckla teori f\u00f6r konvergens hos det stabiliserade tidsstegningsschemat, ett arbete som involverar analys av ett fritt randv\u00e4rdesproblem kopplat till Stokes ekvationer. Med utg\u00e5ngspunkt i denna teori ska postdoktorn konstruera en adaptiv algoritm, implementera och testa metoderna i det etablerade ismodelleringsverktyget Elmer\/Ice, samt genomf\u00f6ra numeriska experiment med till\u00e4mpning p\u00e5 till exempel Ryder-glaci\u00e4ren i norra Gr\u00f6nland. I arbetsuppgifterna ing\u00e5r \u00e4ven att samverka med forskare inom glaciologi, f\u00f6rfatta vetenskapliga artiklar och presentera resultat vid internationella konferenser.\nBeh\u00f6righetskrav\nF\u00f6r att vara beh\u00f6rig f\u00f6r anst\u00e4llning som postdoktor kr\u00e4vs avlagd doktorsexamen eller utl\u00e4ndsk examen som bed\u00f6ms motsvara relevant doktorsexamen. Examen ska vara avlagd senast d\u00e5 anst\u00e4llningsbeslutet fattas.\nBed\u00f6mningsgrunder\nDet \u00e4r meriterande, om doktorsexamen eller motsvarande \u00e4r avlagd h\u00f6gst tre \u00e5r f\u00f6re sista ans\u00f6kningsdag. Om det finns s\u00e4rskilda sk\u00e4l, kan en tidigare avlagd examen ocks\u00e5 anses vara meriterande. Med s\u00e4rskilda sk\u00e4l avses ledighet p\u00e5 grund av sjukdom, f\u00f6r\u00e4ldraledighet, f\u00f6rtroendeuppdrag inom fackliga organisationer, tj\u00e4nstg\u00f6ring inom totalf\u00f6rsvaret, eller andra liknande omst\u00e4ndigheter samt klinisk tj\u00e4nstg\u00f6ring eller f\u00f6r \u00e4mnesomr\u00e5det relevant tj\u00e4nstg\u00f6ring\/uppdrag.\nS\u00f6kande ska ha en utl\u00e4ndsk doktorsexamen, det vill s\u00e4ga en doktorsexamen avlagd vid ett l\u00e4ros\u00e4te utanf\u00f6r Sverige, eller en examen som bed\u00f6ms motsvara detta.\u00a0\nS\u00f6kande b\u00f6r ha en stark bakgrund inom numerisk analys eller ber\u00e4kningsvetenskap och erfarenhet av tidsstegningsmetoder och finita elementmetoden (FEM), g\u00e4rna med till\u00e4mpning inom fluiddynamik, mekanik eller andra r\u00f6rliga randv\u00e4rdesproblem. Tidigare erfarenhet av geovetenskapliga till\u00e4mpningar \u00e4r meriterande men inget krav \u2013 \u00e4mnesspecifik kunskap kan f\u00f6rv\u00e4rvas inom gruppen. God kommunikationsf\u00f6rm\u00e5ga och intresse f\u00f6r tv\u00e4rvetenskapligt samarbete, exempelvis med geofysik och glaciologi, v\u00e4rdes\u00e4tts h\u00f6gt.\nVid tills\u00e4ttningen kommer s\u00e4rskild vikt att f\u00e4stas vid vetenskaplig skicklighet och relevansen i den s\u00f6kandes vetenskapliga bakgrund.\nOm anst\u00e4llningen\nAnst\u00e4llningen avser heltid och g\u00e4ller tills vidare, dock minst tv\u00e5 \u00e5r och h\u00f6gst tre \u00e5r, med m\u00f6jlighet till f\u00f6rl\u00e4ngning om det finns s\u00e4rskilda sk\u00e4l. Tilltr\u00e4de enligt \u00f6verenskommelse.\nVi erbjuder\nHos oss f\u00e5r du dynamiken i samspelet mellan h\u00f6gre utbildning och forskning som g\u00f6r Stockholms universitet till en sp\u00e4nnande och kreativ milj\u00f6. Du arbetar i en internationell milj\u00f6 och f\u00e5r f\u00f6rm\u00e5nliga villkor. Universitetet ligger bel\u00e4get i Nationalstadsparken med goda f\u00f6rbindelser till city.\nStockholms universitet v\u00e4rnar om att vara en arbetsplats som \u00e4r fri fr\u00e5n diskriminering och ger lika r\u00e4ttigheter och m\u00f6jligheter f\u00f6r alla.\nKontakt\nUpplysningar om anst\u00e4llningen l\u00e4mnas av Josefin Ahlkrona, ahlkrona@math.su.se.\nAns\u00f6kan\nDu s\u00f6ker anst\u00e4llningen via Stockholms universitets rekryteringssystem. Bifoga personligt brev och CV samt de bilagor som efterfr\u00e5gas i ans\u00f6kningsformul\u00e4ret. Du som s\u00f6kande ansvarar f\u00f6r att ans\u00f6kan \u00e4r komplett och att den \u00e4r universitetet tillhanda senast sista ans\u00f6kningsdag.\nAnvisningar f\u00f6r s\u00f6kande finns p\u00e5 webbsidan: att s\u00f6ka en anst\u00e4llning.\nStockholms universitet bidrar till det h\u00e5llbara demokratiska samh\u00e4llets utveckling genom kunskap, upplysning och sanningss\u00f6kande.","price":null,"currency":"SEK","status":"active","noindex":true,"location":{"address":"Matematiska institutionen","full_address":null,"city":"Stockholm","country":"SE","latitude":59.2877928,"longitude":18.0528391},"metadata":{"region":"Stockholms l\u00e4n","duration":"6 m\u00e5nader eller l\u00e4ngre","employer":"Stockholms Universitet","postcode":"10691","positions":1,"profession":"Matematiker","salary_type":"Fast m\u00e5nads- vecko- eller timl\u00f6n","employer_url":"https:\/\/www.su.se\/","scope_of_work":"100\u2013100 %","working_hours":"Heltid","contact_person":"Seko Seko","employment_type":"full_time","occupation_field":"Naturvetenskap","employer_workplace":"Matematiska institutionen","experience_required":true,"employment_type_label":"Vanlig anst\u00e4llning"},"user_id":null,"is_sponsored":false,"views_count":0,"ai_views_count":4,"ai_vendor_counts":{"meta":3,"anthropic":1},"visibility":"public","submission_source":null,"submission_ai_name":null,"has_owner_email":true,"can_contact_owner":true,"phone":"0770457900","owner_email":"sekodirekt@seko.se","images":[],"published_at":"2026-08-31T13:34:29+00:00","expires_at":"2026-10-15T23:59:59+00:00","created_at":"2026-09-01T03:14:26+00:00","updated_at":"2026-09-03T02:58:19+00:00"}}