Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2042848202', 'doi': 'https://doi.org/10.1007/bf01371042', 'title': 'Means of positive linear operators', 'display_name': 'Means of positive linear operators', 'publication_year': 1980, 'publication_date': '1980-10-01', 'ids': {'openalex': 'https://openalex.org/W2042848202', 'doi': 'https://doi.org/10.1007/bf01371042', 'mag': '2042848202'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf01371042', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S192217950', 'display_name': 'Mathematische Annalen', 'issn_l': '0025-5831', 'issn': ['0025-5831', '1432-1807'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5023227122', 'display_name': 'Fumio Kubo', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I205349734', 'display_name': 'Hokkaido University', 'ror': 'https://ror.org/02e16g702', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I205349734']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Fumio Kubo', 'raw_affiliation_strings': ['Division of Applied Mathematics Research Institute of Applied Electricity, Hokkaido University, Sapporo, Japan'], 'affiliations': [{'raw_affiliation_string': 'Division of Applied Mathematics Research Institute of Applied Electricity, Hokkaido University, Sapporo, Japan', 'institution_ids': ['https://openalex.org/I205349734']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5109381671', 'display_name': 'Tsuyoshi Andô', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I205349734', 'display_name': 'Hokkaido University', 'ror': 'https://ror.org/02e16g702', 'country_code': 'JP', 'type': 'education', 'lineage': ['https://openalex.org/I205349734']}], 'countries': ['JP'], 'is_corresponding': False, 'raw_author_name': 'Tsuyoshi Ando', 'raw_affiliation_strings': ['Division of Applied Mathematics Research Institute of Applied Electricity, Hokkaido University, Sapporo, Japan'], 'affiliations': [{'raw_affiliation_string': 'Division of Applied Mathematics Research Institute of Applied Electricity, Hokkaido University, Sapporo, Japan', 'institution_ids': ['https://openalex.org/I205349734']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 2290, 'currency': 'EUR', 'value_usd': 2890, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 3.058, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 874, 'citation_normalized_percentile': {'value': 0.988463, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '246', 'issue': '3', 'first_page': '205', 'last_page': '224'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12062', 'display_name': 'Approximation Theory and Sequence Spaces', 'score': 0.9278, 'subfield': {'id': 'https://openalex.org/subfields/2613', 'display_name': 'Statistics and Probability'}, 'field': {'id': 'https://openalex.org/fields/26', 'display_name': 'Mathematics'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12062', 'display_name': 'Approximation Theory and Sequence Spaces', 'score': 0.9278, 'subfield': {'id': 'https://openalex.org/subfields/2613', 'display_name': 'Statistics and Probability'}, 'field': {'id': 'https://openalex.org/fields/26', 'display_name': 'Mathematics'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10050', 'display_name': 'Multi-Criteria Decision Making', 'score': 0.9182, 'subfield': {'id': 'https://openalex.org/subfields/1803', 'display_name': 'Management Science and Operations Research'}, 'field': {'id': 'https://openalex.org/fields/18', 'display_name': 'Decision Sciences'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.8937717}, {'id': 'https://openalex.org/C202444582', 'wikidata': 'https://www.wikidata.org/wiki/Q837863', 'display_name': 'Pure mathematics', 'level': 1, 'score': 0.32601845}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf01371042', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S192217950', 'display_name': 'Mathematische Annalen', 'issn_l': '0025-5831', 'issn': ['0025-5831', '1432-1807'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 10, 'referenced_works': ['https://openalex.org/W1480387038', 'https://openalex.org/W1969043006', 'https://openalex.org/W1988199354', 'https://openalex.org/W1988307052', 'https://openalex.org/W2057807012', 'https://openalex.org/W2071792159', 'https://openalex.org/W2119314230', 'https://openalex.org/W3047929091', 'https://openalex.org/W3210795861', 'https://openalex.org/W4285719527'], 'related_works': ['https://openalex.org/W4245490552', 'https://openalex.org/W4225152035', 'https://openalex.org/W3002753104', 'https://openalex.org/W2911598644', 'https://openalex.org/W2142036596', 'https://openalex.org/W2077600819', 'https://openalex.org/W2061531152', 'https://openalex.org/W2007980826', 'https://openalex.org/W1979597421', 'https://openalex.org/W1587224694'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2042848202', 'counts_by_year': [{'year': 2024, 'cited_by_count': 43}, {'year': 2023, 'cited_by_count': 49}, {'year': 2022, 'cited_by_count': 55}, {'year': 2021, 'cited_by_count': 63}, {'year': 2020, 'cited_by_count': 71}, {'year': 2019, 'cited_by_count': 54}, {'year': 2018, 'cited_by_count': 59}, {'year': 2017, 'cited_by_count': 40}, {'year': 2016, 'cited_by_count': 35}, {'year': 2015, 'cited_by_count': 46}, {'year': 2014, 'cited_by_count': 43}, {'year': 2013, 'cited_by_count': 31}, {'year': 2012, 'cited_by_count': 24}], 'updated_date': '2024-12-11T20:33:52.297963', 'created_date': '2016-06-24'}