{"id":"https://openalex.org/keywords/preconditioners","display_name":"preconditioners","description":"Preconditioners are numerical methods that transform a system of equations to improve the convergence or efficiency of iterative solvers.","display_name_alternatives":["preconditioner"],"ids":{"openalex":"https://openalex.org/keywords/preconditioners","wikidata":"https://www.wikidata.org/wiki/Q1754327"},"primary_topic":{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.5402,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.5402,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10339","display_name":"Advanced Numerical Methods in Computational Mathematics","score":0.162,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":5040,"cited_by_count":65691,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/preconditioners","updated_date":"2026-10-20T04:07:40","created_date":"2026-09-30T00:00:00"}
