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Erratum to: The cyclotomic degenerate affine Hecke algebras of arbitrary Weyl groups 勘误：任意韦尔群的环变性仿射赫克代数
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-05-16 DOI: 10.1007/s00229-024-01565-z
Fan Kong, Zhi-Wei Li
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引用次数: 0
Instanton sheaves on Fano threefolds 法诺三折上的瞬子切
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-05-14 DOI: 10.1007/s00229-024-01559-x
Gaia Comaschi, Marcos Jardim
{"title":"Instanton sheaves on Fano threefolds","authors":"Gaia Comaschi, Marcos Jardim","doi":"10.1007/s00229-024-01559-x","DOIUrl":"https://doi.org/10.1007/s00229-024-01559-x","url":null,"abstract":"<p>Generalizing the definitions originally presented by Kuznetsov and Faenzi, we study (possibly non locally free) instanton sheaves of arbitrary rank on Fano threefolds. We classify rank 1 instanton sheaves and describe all curves whose structure sheaves are rank 0 instanton sheaves. In addition, we show that every rank 2 instanton sheaf is an elementary transformation of a locally free instanton sheaf along a rank 0 instanton sheaf. To complete the paper, we describe the moduli space of rank 2 instanton sheaves of charge 2 on a quadric threefold <i>X</i> and show that the full moduli space of rank 2 semistable sheaves on <i>X</i> with Chern classes <span>((c_1,c_2,c_3)=(-,1,2,0))</span> is connected and contains, besides the instanton component, just one other irreducible component which is also fully described.</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
On Yau sequence over complete intersection surface singularities of Brieskorn type 关于布里斯科恩型完全交面奇点上的尤序列
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-05-11 DOI: 10.1007/s00229-024-01563-1
Fanning Meng
{"title":"On Yau sequence over complete intersection surface singularities of Brieskorn type","authors":"Fanning Meng","doi":"10.1007/s00229-024-01563-1","DOIUrl":"https://doi.org/10.1007/s00229-024-01563-1","url":null,"abstract":"<p>In this paper, we study the Yau sequence concerning the minimal cycle over complete intersection surface singularities of Brieskorn type, and consider the relations between the minimal cycle <i>A</i> and the fundamental cycle <i>Z</i>. Further, we also give the coincidence between the canonical cycles and the fundamental cycles from the Yau sequence concerning the minimal cycle.</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Yet another proof of the density in energy of Lipschitz functions 立普次函数能量密度的另一个证明
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-05-04 DOI: 10.1007/s00229-024-01562-2
Danka Lučić, Enrico Pasqualetto
{"title":"Yet another proof of the density in energy of Lipschitz functions","authors":"Danka Lučić, Enrico Pasqualetto","doi":"10.1007/s00229-024-01562-2","DOIUrl":"https://doi.org/10.1007/s00229-024-01562-2","url":null,"abstract":"<p>We provide a new, short proof of the density in energy of Lipschitz functions into the metric Sobolev space defined by using plans with barycenter (and thus, a fortiori, into the Newtonian–Sobolev space). Our result covers first-order Sobolev spaces of exponent <span>(pin (1,infty ))</span>, defined over a complete separable metric space endowed with a boundedly-finite Borel measure. Our proof is based on a completely smooth analysis: first we reduce the problem to the Banach space setting, where we consider smooth functions instead of Lipschitz ones, then we rely on classical tools in convex analysis and on the superposition principle for normal 1-currents. Along the way, we obtain a new proof of the density in energy of smooth cylindrical functions in Sobolev spaces defined over a separable Banach space endowed with a finite Borel measure.</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Relation of knot theories in some 3-manifolds to planar 1-polar knot diagrams 某些三芒星中的结理论与平面一极结图的关系
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-23 DOI: 10.1007/s00229-024-01558-y
Bataineh Khaled, Kodokostas Dimitrios
{"title":"Relation of knot theories in some 3-manifolds to planar 1-polar knot diagrams","authors":"Bataineh Khaled, Kodokostas Dimitrios","doi":"10.1007/s00229-024-01558-y","DOIUrl":"https://doi.org/10.1007/s00229-024-01558-y","url":null,"abstract":"","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140667390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Chow motives of genus one fibrations 属一纤维的周动机
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-21 DOI: 10.1007/s00229-024-01557-z
Daiki Kawabe
{"title":"Chow motives of genus one fibrations","authors":"Daiki Kawabe","doi":"10.1007/s00229-024-01557-z","DOIUrl":"https://doi.org/10.1007/s00229-024-01557-z","url":null,"abstract":"<p>Let <span>(f: X rightarrow C)</span> be a genus 1 fibration from a smooth projective surface, i.e. its generic fiber is a regular genus 1 curve. Let <span>(j: J rightarrow C)</span> be the Jacobian fibration of <i>f</i>. In this paper, we prove that the Chow motives of <i>X</i> and <i>J</i> are isomorphic. As an application, combined with our concomitant work on motives of quasi-elliptic fibrations, we prove Kimura finite-dimensionality for smooth projective surfaces not of general type with geometric genus 0. This generalizes Bloch–Kas–Lieberman’s result to arbitrary characteristic.\u0000</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 capacity estimate in metastability for generic configurations 关于一般配置的代谢能力估计的说明
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-08 DOI: 10.1007/s00229-024-01555-1
Benny Avelin, Vesa Julin
{"title":"A note on the capacity estimate in metastability for generic configurations","authors":"Benny Avelin, Vesa Julin","doi":"10.1007/s00229-024-01555-1","DOIUrl":"https://doi.org/10.1007/s00229-024-01555-1","url":null,"abstract":"<p>In this paper we further develop the ideas from Geometric Function Theory initially introduced in Avelin et al. (Commun Math Phys 404:401–437, 2023), to derive capacity estimate in metastability for arbitrary configurations. The novelty of this paper is twofold. First, the graph theoretical connection enables us to exactly compute the pre-factor in the capacity. Second, we complete the method from Avelin et al. (Commun Math Phys 404:401–437, 2023) by providing an upper bound using Geometric Function Theory together with Thompson’s principle, avoiding explicit constructions of test functions.</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140598142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Rigidity of bach-flat gradient schouten solitons 巴赫平梯度舒顿孤子的刚性
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-08 DOI: 10.1007/s00229-024-01542-6
Valter Borges
{"title":"Rigidity of bach-flat gradient schouten solitons","authors":"Valter Borges","doi":"10.1007/s00229-024-01542-6","DOIUrl":"https://doi.org/10.1007/s00229-024-01542-6","url":null,"abstract":"<p>In this paper, we show that complete Bach-flat Schouten solitons with <span>(nge 4)</span> are rigid. When <span>(n=3)</span> we are able to conclude rigidity under a more general condition, namely when the Bach tensor is divergence-free. These results imply rigidity of locally conformally flat Schouten solitons for <span>(nge 3)</span>.</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140598514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The cyclotomic degenerate affine Hecke algebras of arbitrary Weyl groups 任意韦尔群的环变性仿射赫克代数
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-08 DOI: 10.1007/s00229-024-01551-5
Fan Kong, Zhi-Wei Li
{"title":"The cyclotomic degenerate affine Hecke algebras of arbitrary Weyl groups","authors":"Fan Kong, Zhi-Wei Li","doi":"10.1007/s00229-024-01551-5","DOIUrl":"https://doi.org/10.1007/s00229-024-01551-5","url":null,"abstract":"","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140731294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Local vanishing for toric varieties 环状变的局部消失
IF 0.6 4区 数学
Manuscripta Mathematica Pub Date : 2024-04-06 DOI: 10.1007/s00229-024-01553-3
Wanchun Shen, Sridhar Venkatesh, Anh Duc Vo
{"title":"Local vanishing for toric varieties","authors":"Wanchun Shen, Sridhar Venkatesh, Anh Duc Vo","doi":"10.1007/s00229-024-01553-3","DOIUrl":"https://doi.org/10.1007/s00229-024-01553-3","url":null,"abstract":"<p>Let <i>X</i> be a toric variety. We establish vanishing (and non-vanishing) results for the sheaves <span>(R^if_*Omega ^p_{tilde{X}}(log E))</span>, where <span>(f: tilde{X} rightarrow X)</span> is a strong log resolution of singularities with reduced exceptional divisor <i>E</i>. These extend the local vanishing theorem for toric varieties in Mustaţă et al. (J. Inst. Math. Jussieu 19(3):801-819, 2020). Our consideration of these sheaves is motivated by the notion of <i>k</i>-rational singularities introduced by Friedman and Laza (Higher Du Bois and higher rational singularities, 2001). In particular, our results lead to criteria for toric varieties to have <i>k</i>-rational singularities, as defined in Shen et al. (On k-Du Bois and k-rational singularities, 2023).\u0000</p>","PeriodicalId":49887,"journal":{"name":"Manuscripta Mathematica","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140598141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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