发布求助
文献互助 智能选刊 最新文献

Mathematika最新文献

筛选
英文 中文
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-25
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148092871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flat grazes of convex bodies and local characterization of quadrics 凸体的平面放牧与二次曲面的局部特征
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-25 DOI: 10.1112/mtk.70086
Jesús Jerónimo-Castro, Luis Montejano, Efrén Morales-Amaya
{"title":"Flat grazes of convex bodies and local characterization of quadrics","authors":"Jesús Jerónimo-Castro,&nbsp;Luis Montejano,&nbsp;Efrén Morales-Amaya","doi":"10.1112/mtk.70086","DOIUrl":"10.1112/mtk.70086","url":null,"abstract":"<p>We prove several local characterizations of quadrics, among them, the local Blaschke's Theorem, and use this result to give some characterizations of the ellipsoid related to the flatness of its grazes.</p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Flat grazes of convex bodies and local characterization of quadrics 凸体的平面放牧与二次曲面的局部特征
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-25 DOI: 10.1112/mtk.70086
Jesús Jerónimo-Castro, Luis Montejano, Efrén Morales-Amaya
{"title":"Flat grazes of convex bodies and local characterization of quadrics","authors":"Jesús Jerónimo-Castro,&nbsp;Luis Montejano,&nbsp;Efrén Morales-Amaya","doi":"10.1112/mtk.70086","DOIUrl":"https://doi.org/10.1112/mtk.70086","url":null,"abstract":"<p>We prove several local characterizations of quadrics, among them, the local Blaschke's Theorem, and use this result to give some characterizations of the ellipsoid related to the flatness of its grazes.</p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-25
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148046311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Counting problems for orthogonal sets and sublattices in function fields 函数域中正交集和正交子格的计数问题
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-20 DOI: 10.1112/mtk.70083
Noy Soffer Aranov, Angelot Behajaina
{"title":"Counting problems for orthogonal sets and sublattices in function fields","authors":"Noy Soffer Aranov,&nbsp;Angelot Behajaina","doi":"10.1112/mtk.70083","DOIUrl":"10.1112/mtk.70083","url":null,"abstract":"<p>Let <span></span><math></math>. Analogous to orthogonality in the Euclidean space <span></span><math></math>, there exists a well-studied notion of ultrametric orthogonality in <span></span><math></math>. In this paper, we extend the work of [4] on counting problems related to orthogonality in <span></span><math></math>. For example, we resolve an open question posed in [4] by bounding the size of the largest “orthogonal sets” in <span></span><math></math>. Furthermore, using similar ideas and techniques, we investigate analogues of Hadamard matrices over <span></span><math></math>. Finally, we also use ultrametric orthogonality to compute the number of sublattices of <span></span><math></math> with a certain geometric structure, and to determine the number of orthogonal bases of a sublattice in <span></span><math></math>. The resulting formulas depend crucially on successive minima.</p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://londmathsoc.onlinelibrary.wiley.com/doi/epdf/10.1112/mtk.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-20
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148049200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Counting problems for orthogonal sets and sublattices in function fields 函数域中正交集和正交子格的计数问题
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-20 DOI: 10.1112/mtk.70083
Noy Soffer Aranov, Angelot Behajaina
{"title":"Counting problems for orthogonal sets and sublattices in function fields","authors":"Noy Soffer Aranov,&nbsp;Angelot Behajaina","doi":"10.1112/mtk.70083","DOIUrl":"https://doi.org/10.1112/mtk.70083","url":null,"abstract":"<p>Let <span></span><math></math>. Analogous to orthogonality in the Euclidean space <span></span><math></math>, there exists a well-studied notion of ultrametric orthogonality in <span></span><math></math>. In this paper, we extend the work of [4] on counting problems related to orthogonality in <span></span><math></math>. For example, we resolve an open question posed in [4] by bounding the size of the largest “orthogonal sets” in <span></span><math></math>. Furthermore, using similar ideas and techniques, we investigate analogues of Hadamard matrices over <span></span><math></math>. Finally, we also use ultrametric orthogonality to compute the number of sublattices of <span></span><math></math> with a certain geometric structure, and to determine the number of orthogonal bases of a sublattice in <span></span><math></math>. The resulting formulas depend crucially on successive minima.</p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://londmathsoc.onlinelibrary.wiley.com/doi/epdf/10.1112/mtk.70083","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-20
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148083887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A note on the Steinitz lemma 关于施泰尼茨引理的注释
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-19 DOI: 10.1112/mtk.70085
Gergely Ambrus, Rainie Heck
{"title":"A note on the Steinitz lemma","authors":"Gergely Ambrus,&nbsp;Rainie Heck","doi":"10.1112/mtk.70085","DOIUrl":"https://doi.org/10.1112/mtk.70085","url":null,"abstract":"<p>We establish the connection between the Steinitz problem for ordering vector families in arbitrary norms and its variant for not necessarily zero-sum families consisting of “nearly unit” vectors.</p>","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://londmathsoc.onlinelibrary.wiley.com/doi/epdf/10.1112/mtk.70085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IF 0.8 3区 数学
Mathematika Pub Date : 2026-03-19
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":18463,"journal":{"name":"Mathematika","volume":"72 2","pages":""},"PeriodicalIF":0.8,"publicationDate":"2026-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148085183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书