Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2089141651', 'doi': 'https://doi.org/10.1007/bf00967431', 'title': 'Convergence of double fourier series for functions of bounded generalized variation. II', 'display_name': 'Convergence of double fourier series for functions of bounded generalized variation. II', 'publication_year': 1975, 'publication_date': '1975-01-01', 'ids': {'openalex': 'https://openalex.org/W2089141651', 'doi': 'https://doi.org/10.1007/bf00967431', 'mag': '2089141651'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf00967431', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S94840338', 'display_name': 'Siberian Mathematical Journal', 'issn_l': '0037-4466', 'issn': ['0037-4466', '1573-9260'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320267', 'host_organization_name': 'Pleiades Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320267', 'https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Pleiades Publishing', '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/A5029243526', 'display_name': 'Б. И. Голубов', 'orcid': 'https://orcid.org/0000-0002-9339-9123'}, 'institutions': [], 'countries': [], 'is_corresponding': True, 'raw_author_name': 'B. I. Golubov', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': ['https://openalex.org/A5029243526'], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.591, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 6, 'citation_normalized_percentile': {'value': 0.48767, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 76, 'max': 78}, 'biblio': {'volume': '15', 'issue': '4', 'first_page': '546', 'last_page': '557'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12062', 'display_name': 'Statistical Convergence in Approximation Theory and Functional Analysis', 'score': 0.9883, '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': 'Statistical Convergence in Approximation Theory and Functional Analysis', 'score': 0.9883, '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/T11049', 'display_name': 'Harmonic Analysis and Operator Theory', 'score': 0.9783, 'subfield': {'id': 'https://openalex.org/subfields/2604', 'display_name': 'Applied Mathematics'}, '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/T12404', 'display_name': 'High-dimensional Integration and Quasi-Monte Carlo Methods', 'score': 0.9718, 'subfield': {'id': 'https://openalex.org/subfields/2612', 'display_name': 'Numerical Analysis'}, 'field': {'id': 'https://openalex.org/fields/26', 'display_name': 'Mathematics'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/bounded-variation', 'display_name': 'Bounded variation', 'score': 0.6751694}, {'id': 'https://openalex.org/keywords/variation', 'display_name': 'Variation (astronomy)', 'score': 0.6327621}, {'id': 'https://openalex.org/keywords/function-series', 'display_name': 'Function series', 'score': 0.61284876}, {'id': 'https://openalex.org/keywords/statistical-convergence', 'display_name': 'Statistical Convergence', 'score': 0.602986}, {'id': 'https://openalex.org/keywords/multivariate-approximation', 'display_name': 'Multivariate Approximation', 'score': 0.589473}, {'id': 'https://openalex.org/keywords/fourier-multiplier-theorems', 'display_name': 'Fourier Multiplier Theorems', 'score': 0.58814}, {'id': 'https://openalex.org/keywords/approximation-theorems', 'display_name': 'Approximation Theorems', 'score': 0.560558}, {'id': 'https://openalex.org/keywords/bernstein-polynomials', 'display_name': 'Bernstein Polynomials', 'score': 0.557323}, {'id': 'https://openalex.org/keywords/normal-convergence', 'display_name': 'Normal convergence', 'score': 0.4588308}], 'concepts': [{'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.84241474}, {'id': 'https://openalex.org/C207864730', 'wikidata': 'https://www.wikidata.org/wiki/Q179467', 'display_name': 'Fourier series', 'level': 2, 'score': 0.76204085}, {'id': 'https://openalex.org/C27851653', 'wikidata': 'https://www.wikidata.org/wiki/Q829653', 'display_name': 'Bounded variation', 'level': 2, 'score': 0.6751694}, {'id': 'https://openalex.org/C2777303404', 'wikidata': 'https://www.wikidata.org/wiki/Q759757', 'display_name': 'Convergence (economics)', 'level': 2, 'score': 0.66604996}, {'id': 'https://openalex.org/C2778334786', 'wikidata': 'https://www.wikidata.org/wiki/Q1586270', 'display_name': 'Variation (astronomy)', 'level': 2, 'score': 0.6327621}, {'id': 'https://openalex.org/C32929806', 'wikidata': 'https://www.wikidata.org/wiki/Q1474614', 'display_name': 'Function series', 'level': 3, 'score': 0.61284876}, {'id': 'https://openalex.org/C143724316', 'wikidata': 'https://www.wikidata.org/wiki/Q312468', 'display_name': 'Series (stratigraphy)', 'level': 2, 'score': 0.6009689}, {'id': 'https://openalex.org/C34388435', 'wikidata': 'https://www.wikidata.org/wiki/Q2267362', 'display_name': 'Bounded function', 'level': 2, 'score': 0.5406982}, {'id': 'https://openalex.org/C102519508', 'wikidata': 'https://www.wikidata.org/wiki/Q6520159', 'display_name': 'Fourier transform', 'level': 2, 'score': 0.4669332}, {'id': 'https://openalex.org/C14928880', 'wikidata': 'https://www.wikidata.org/wiki/Q1512559', 'display_name': 'Normal convergence', 'level': 4, 'score': 0.4588308}, {'id': 'https://openalex.org/C28826006', 'wikidata': 'https://www.wikidata.org/wiki/Q33521', 'display_name': 'Applied mathematics', 'level': 1, 'score': 0.42429832}, {'id': 'https://openalex.org/C134306372', 'wikidata': 'https://www.wikidata.org/wiki/Q7754', 'display_name': 'Mathematical analysis', 'level': 1, 'score': 0.41391367}, {'id': 'https://openalex.org/C57869625', 'wikidata': 'https://www.wikidata.org/wiki/Q1783502', 'display_name': 'Rate of convergence', 'level': 3, 'score': 0.22910762}, {'id': 'https://openalex.org/C26517878', 'wikidata': 'https://www.wikidata.org/wiki/Q228039', 'display_name': 'Key (lock)', 'level': 2, 'score': 0.11842251}, {'id': 'https://openalex.org/C41008148', 'wikidata': 'https://www.wikidata.org/wiki/Q21198', 'display_name': 'Computer science', 'level': 0, 'score': 0.06680173}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.0436233}, {'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.043165237}, {'id': 'https://openalex.org/C151730666', 'wikidata': 'https://www.wikidata.org/wiki/Q7205', 'display_name': 'Paleontology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C44870925', 'wikidata': 'https://www.wikidata.org/wiki/Q37547', 'display_name': 'Astrophysics', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C162324750', 'wikidata': 'https://www.wikidata.org/wiki/Q8134', 'display_name': 'Economics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C50522688', 'wikidata': 'https://www.wikidata.org/wiki/Q189833', 'display_name': 'Economic growth', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C38652104', 'wikidata': 'https://www.wikidata.org/wiki/Q3510521', 'display_name': 'Computer security', 'level': 1, 'score': 0.0}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1007/bf00967431', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S94840338', 'display_name': 'Siberian Mathematical Journal', 'issn_l': '0037-4466', 'issn': ['0037-4466', '1573-9260'], 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/P4310320267', 'host_organization_name': 'Pleiades Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320267', 'https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Pleiades Publishing', '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': 11, 'referenced_works': ['https://openalex.org/W1526489138', 'https://openalex.org/W1972160076', 'https://openalex.org/W2008304335', 'https://openalex.org/W2020756962', 'https://openalex.org/W2022262217', 'https://openalex.org/W2055020239', 'https://openalex.org/W2063549621', 'https://openalex.org/W2607438301', 'https://openalex.org/W4234212798', 'https://openalex.org/W874526148', 'https://openalex.org/W979699793'], 'related_works': ['https://openalex.org/W4365814832', 'https://openalex.org/W2893082265', 'https://openalex.org/W2793250783', 'https://openalex.org/W2485008742', 'https://openalex.org/W2460672314', 'https://openalex.org/W2332235244', 'https://openalex.org/W2167819173', 'https://openalex.org/W2078990828', 'https://openalex.org/W2020272507', 'https://openalex.org/W1972550541'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2089141651', 'counts_by_year': [{'year': 2019, 'cited_by_count': 1}], 'updated_date': '2024-09-15T02:28:52.005912', 'created_date': '2016-06-24'}