{"id":"https://openalex.org/W4237313796","doi":"https://doi.org/10.1002/malq.19970430207","title":"Effective Structures","display_name":"Effective Structures","publication_year":1997,"publication_date":"1997-01-01","ids":{"openalex":"https://openalex.org/W4237313796","doi":"https://doi.org/10.1002/malq.19970430207"},"language":"en","primary_location":{"id":"doi:10.1002/malq.19970430207","is_oa":false,"landing_page_url":"https://doi.org/10.1002/malq.19970430207","pdf_url":null,"source":{"id":"https://openalex.org/S172351290","display_name":"Mathematical logic quarterly","issn_l":"0044-3050","issn":["0044-3050","0942-5616","1521-3870"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Mathematical Logic Quarterly","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5004883990","display_name":"Alexandra A. Soskova","orcid":"https://orcid.org/0000-0002-4392-4284"},"institutions":[{"id":"https://openalex.org/I58918642","display_name":"Sofia University \"St. Kliment Ohridski\"","ror":"https://ror.org/02jv3k292","country_code":"BG","type":"education","lineage":["https://openalex.org/I58918642"]}],"countries":["BG"],"is_corresponding":true,"raw_author_name":"Alexandra A. Soskova","raw_affiliation_strings":["Department of Mathematics and Computer Science, Sofia University, Boulevard James Bouchier 5, Sofia 1126, Bulgaria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics and Computer Science, Sofia University, Boulevard James Bouchier 5, Sofia 1126, Bulgaria","institution_ids":["https://openalex.org/I58918642"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5004883990"],"corresponding_institution_ids":["https://openalex.org/I58918642"],"apc_list":{"value":2900,"currency":"USD","value_usd":2900},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.39708856,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"43","issue":"2","first_page":"235","last_page":"250"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12002","display_name":"Computability, Logic, AI Algorithms","score":0.9991000294685364,"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/T12002","display_name":"Computability, Logic, AI Algorithms","score":0.9991000294685364,"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/T11010","display_name":"Logic, Reasoning, and Knowledge","score":0.9864000082015991,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10126","display_name":"Logic, programming, and type systems","score":0.9861999750137329,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.7905821800231934},{"id":"https://openalex.org/keywords/computability","display_name":"Computability","score":0.7834450006484985},{"id":"https://openalex.org/keywords/connection","display_name":"Connection (principal bundle)","score":0.6364510655403137},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.6358853578567505},{"id":"https://openalex.org/keywords/computable-function","display_name":"Computable function","score":0.4421064853668213},{"id":"https://openalex.org/keywords/algebra-over-a-field","display_name":"Algebra over a field","score":0.43476784229278564},{"id":"https://openalex.org/keywords/pure-mathematics","display_name":"Pure mathematics","score":0.41568344831466675},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.3569177985191345},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.04776573181152344}],"concepts":[{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.7905821800231934},{"id":"https://openalex.org/C152062344","wikidata":"https://www.wikidata.org/wiki/Q818888","display_name":"Computability","level":2,"score":0.7834450006484985},{"id":"https://openalex.org/C13355873","wikidata":"https://www.wikidata.org/wiki/Q2920850","display_name":"Connection (principal bundle)","level":2,"score":0.6364510655403137},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.6358853578567505},{"id":"https://openalex.org/C54271186","wikidata":"https://www.wikidata.org/wiki/Q1148456","display_name":"Computable function","level":2,"score":0.4421064853668213},{"id":"https://openalex.org/C136119220","wikidata":"https://www.wikidata.org/wiki/Q1000660","display_name":"Algebra over a field","level":2,"score":0.43476784229278564},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.41568344831466675},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.3569177985191345},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.04776573181152344},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/malq.19970430207","is_oa":false,"landing_page_url":"https://doi.org/10.1002/malq.19970430207","pdf_url":null,"source":{"id":"https://openalex.org/S172351290","display_name":"Mathematical logic quarterly","issn_l":"0044-3050","issn":["0044-3050","0942-5616","1521-3870"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Mathematical Logic Quarterly","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.5}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W74876785","https://openalex.org/W633421911","https://openalex.org/W1457540691","https://openalex.org/W1976089169","https://openalex.org/W1979911443","https://openalex.org/W2007357849","https://openalex.org/W2007898361","https://openalex.org/W2017531368","https://openalex.org/W2039687554","https://openalex.org/W2076989750","https://openalex.org/W2530006810","https://openalex.org/W4247184275"],"related_works":["https://openalex.org/W98540345","https://openalex.org/W2962921822","https://openalex.org/W4389946807","https://openalex.org/W4236179144","https://openalex.org/W4376312568","https://openalex.org/W1533694441","https://openalex.org/W4236014005","https://openalex.org/W1512259211","https://openalex.org/W2094813555","https://openalex.org/W134061232"],"abstract_inverted_index":{"Abstract":[0],"The":[1,29],"connection":[2],"between":[3],"some":[4],"special":[5],"properties":[6],"of":[7,18,24,36],"the":[8,16,25,34],"computable":[9],"functions":[10],"in":[11],"an":[12],"abstract":[13,40],"structure":[14,26],"and":[15,21],"existence":[17],"a":[19],"recursive":[20],"semi\u2010recursive":[22],"representation":[23],"is":[27],"studied.":[28],"considerations":[30],"are":[31],"based":[32],"on":[33,38],"notion":[35],"computability":[37],"many\u2010sorted":[39],"structures.":[41]},"counts_by_year":[],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}