{"title":"Network-based hierarchical heterogeneity analysis and applications to cancer omics data.","authors":"Ruiyue Wang, Sanguo Zhang, Shuangge Ma","doi":"10.1007/s11425-024-2435-2","DOIUrl":"10.1007/s11425-024-2435-2","url":null,"abstract":"<p><p>In the study of complex diseases, heterogeneity analysis has been routinely conducted. A series of recent studies have suggested that network (graph)-based heterogeneity analysis can take a system perspective and be more informative than that based on simpler statistics such as mean and variance. In this article, we conduct Gaussian graphical model (GGM)-based heterogeneity analysis. Significantly advancing from the existing literature, we consider the scenario, where measurements can be decomposed into two parts, with the first and second parts for a rough grouping and a refined subgrouping, respectively. Additionally, the groups and subgroups have a nested structure, which enhances interpretability. A penalization approach is developed for simultaneous sparse estimation, grouping and subgrouping, and achieving the hierarchical structure. Its theoretical properties are rigorously established, and an effective computational algorithm is developed. Simulation demonstrates its competitive empirical performance. The analysis of data from the Pan-Cancer Analysis of Whole Genomes (PCAWG) further demonstrates its practical utility and leads to sensible findings.</p>","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"69 8","pages":"2181-2194"},"PeriodicalIF":1.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13655714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149167098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"One-cycles on Gushel-Mukai fourfolds and the Beauville-Voisin filtration","authors":"Ruxuan Zhang","doi":"10.1007/s11425-022-2119-8","DOIUrl":"https://doi.org/10.1007/s11425-022-2119-8","url":null,"abstract":"","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":" 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135293346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the saturation number for singular cubic surfaces","authors":"Wang, Yuchao, Yao, Weili","doi":"10.1007/s11425-023-2227-9","DOIUrl":"https://doi.org/10.1007/s11425-023-2227-9","url":null,"abstract":"We investigate the distribution of rational points on singular cubic surfaces, whose coordinates have few prime factors. The key tools used are universal torsors, the circle method and results on linear equations in primes.","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A GMM approach in coupling internal data and external summary information with heterogeneous data populations","authors":"Jun Shao, Jinyi Wang, Lei Wang","doi":"10.1007/s11425-022-2111-0","DOIUrl":"https://doi.org/10.1007/s11425-022-2111-0","url":null,"abstract":"","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136133020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Triples of almost primes","authors":"Jiamin Li, Jianya Liu","doi":"10.1007/s11425-023-2226-5","DOIUrl":"https://doi.org/10.1007/s11425-023-2226-5","url":null,"abstract":"","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136132330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the core entropy of Newton maps","authors":"Yan Gao","doi":"10.1007/s11425-021-2010-1","DOIUrl":"https://doi.org/10.1007/s11425-021-2010-1","url":null,"abstract":"","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"23 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136233682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The functional equations of Langlands Eisenstein series for SL(n, ℤ)","authors":"Goldfeld, Dorian, Stade, Eric, Woodbury, Michael","doi":"10.1007/s11425-023-2213-y","DOIUrl":"https://doi.org/10.1007/s11425-023-2213-y","url":null,"abstract":"This paper presents a very simple explicit description of Langlands Eisenstein series for ${rm SL}(n,mathbb Z)$. The functional equations of these Eisenstein series are heuristically derived from the functional equations of certain divisor sums and certain Whittaker functions that appear in the Fourier coefficients of the Eisenstein series. We conjecture that the functional equations are unique up to a real affine transformation of the $s$ variables defining the Eisenstein series and prove the uniqueness conjecture in certain cases.","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136077418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A remark on density theorems for Riemann’s zeta-function","authors":"János Pintz","doi":"10.1007/s11425-023-2215-7","DOIUrl":"https://doi.org/10.1007/s11425-023-2215-7","url":null,"abstract":"","PeriodicalId":54444,"journal":{"name":"Science China-Mathematics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136182988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}