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Journal of Mathematics of Kyoto University最新文献

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A note on strong unique continuation for normal elliptic systems with Gevrey coefficients 具有geevrey系数的正规椭圆系统的强唯一延拓的注记
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1260975040
M. Tamura
{"title":"A note on strong unique continuation for normal elliptic systems with Gevrey coefficients","authors":"M. Tamura","doi":"10.1215/KJM/1260975040","DOIUrl":"https://doi.org/10.1215/KJM/1260975040","url":null,"abstract":"In this paper, we consider the strong unique continuation for normal elliptic systems whose coefficients are Gevrey class. By using Lerner’s lemma, we prove the Carleman estimate with some weight function.","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"593-601"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66114063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
$p$-compact groups as subgroups of maximal rank of Kac-Moody groups $p$-紧群作为Kac-Moody群的极大秩子群
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1248983031
J. Bover
{"title":"$p$-compact groups as subgroups of maximal rank of Kac-Moody groups","authors":"J. Bover","doi":"10.1215/KJM/1248983031","DOIUrl":"https://doi.org/10.1215/KJM/1248983031","url":null,"abstract":"In [28], Kitchloo constructed a map f : BX → BK∧ p where K is a certain KacMoody group of rank two, X is a rank two mod p finite loop space and f is such that it induces an isomorphism between even dimensional mod p cohomology groups. Here B denotes the classifying space functor and (−)p denotes the Bousfield-Kan Fp-completion functor ([8]). This space X —or rather the triple (X∧ p , BX ∧ p , e) where e : X ' ΩBX— is a particular example of what is known as a p-compact group. These objects were introduced by Dwyer and Wilkerson in [15] as the homotopy theoretical framework to study finite loop spaces and compact Lie groups from a homotopy point of view. The foundational paper [15] together with its many sequels by Dwyer-Wilkerson and other authors represent now an active, well established research area which contains some of the most important recent advances in homotopy theory. While p-compact groups are nowadays reasonably well understood objects, our understanding of Kac-Moody groups and their classifying spaces from a homotopy point of view is far from satisfactory. The work of Kitchloo in [28] started a project which has also involved Broto, Saumell, Ruiz and the present author and has produced a series of results ([2], [3], [10]) which show interesting similarities between this theory and the theory of p-compact groups, as well as non trivial challenging differences. The goal of this paper is to extend the construction of Kitchloo that we have recalled above to produce rank-preserving maps BX → BK∧ p for a wide family of p-compact groups X. These maps can be understood as the homotopy analogues to monomorphisms, in a sense that will be made precise in section 13. We prove:","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"83-112"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66087215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Some results on local cohomology modules defined by a pair of ideals 由一对理想定义的局部上同模的一些结果
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1248983036
L. Chu, Qing Wang
{"title":"Some results on local cohomology modules defined by a pair of ideals","authors":"L. Chu, Qing Wang","doi":"10.1215/KJM/1248983036","DOIUrl":"https://doi.org/10.1215/KJM/1248983036","url":null,"abstract":"Let $R$ be a commutative Noetherian ring, and let $I$ and $J$ be two ideals of $R$. Assume that $R$ is local with the maximal ideal ${mathfrak{m}}$, we mainly prove that (i) there exists an equality [{text{inf}}{i, mid H_{I,J}^i(M), {text{ is not Artinian}} }={text{inf}}{ {text{depth}}M_{mathfrak{p}} mid , {mathfrak{p}}in W(I, J)backslash {{mathfrak{m}}} }] for any finitely generated $R-$module $M$, where $W(I, J)={{mathfrak{p}} in {text{Spec}}(R) mid , I^n subseteq {mathfrak{p}}+J,, {text{for some positive integer}} ,n }$; (ii) for any finitely generated $R-$module $M$ with ${text{dim}}M=d$, $H_{I,J}^d(M)$ is Artinian. Also, we give a characterization to the supremum of all integers $r$ for which $H_{I,J}^r(M) neq 0$.","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"193-200"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1215/KJM/1248983036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66087663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
Free-fall and heteroclinic orbits to triple collisions in the isosceles three-body problem 等腰三体问题中三重碰撞的自由落体和异斜轨道
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1265899480
M. Shibayama
{"title":"Free-fall and heteroclinic orbits to triple collisions in the isosceles three-body problem","authors":"M. Shibayama","doi":"10.1215/KJM/1265899480","DOIUrl":"https://doi.org/10.1215/KJM/1265899480","url":null,"abstract":"","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"45 1","pages":"735-746"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66114237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Sur le Cortex d'un groupe de Lie nilpotent 在一个强大的李群的皮层上
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1248983034
Imed Kédim, Megdiche Hatem
{"title":"Sur le Cortex d'un groupe de Lie nilpotent","authors":"Imed Kédim, Megdiche Hatem","doi":"10.1215/KJM/1248983034","DOIUrl":"https://doi.org/10.1215/KJM/1248983034","url":null,"abstract":"Let $G$ be a connected and simply connected, nilpotent Lie group. In this paper, we show that the cortex of $G$ is a semi-algebraic set by means of a geometric characterization. It is also shown that the cortex is the image under a linear projection of a countable union of a semi-algebraic sets lying in the tensor product $T$($mathfrak{g}$)$otimes$ $mathfrak{g}$*.","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"161-172"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1215/KJM/1248983034","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66087279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Central Limit Theorem for Linear Stochastic Evolutions 线性随机演化的中心极限定理
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1248983037
M. Nakashima
{"title":"Central Limit Theorem for Linear Stochastic Evolutions","authors":"M. Nakashima","doi":"10.1215/KJM/1248983037","DOIUrl":"https://doi.org/10.1215/KJM/1248983037","url":null,"abstract":"We consider a Markov chain with values in [0,$infty$)$^{mathbb{z}d}$. The Markov chain includes some interesting examples such as the oriented site percolation, the directed polymers in random environment, and a time discretization of the binary contact process. We prove a central limit theorem for �the spatial distribution of population� when $dgeq 3$ and a certain square-integrability condition for the total population is satisfied. This extends a result known for the directed polymers in random environment to a large class of models.","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"201-224"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66087681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Gabor multipliers for weighted Banach spaces on locally compact abelian groups 局部紧阿贝尔群上加权Banach空间的Gabor乘子
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1256219154
S. S. Pandey
{"title":"Gabor multipliers for weighted Banach spaces on locally compact abelian groups","authors":"S. S. Pandey","doi":"10.1215/KJM/1256219154","DOIUrl":"https://doi.org/10.1215/KJM/1256219154","url":null,"abstract":"We use a projective groups representation ρ of the unimodular group G× ˆ G on L 2 ( G ) to define Gabor wavelet transform of a function f with respect to a window function g , where G is a locally compact abelian group and ˆ G its dual group. Using these transforms, we define a weighted Banach H 1 , ρ w ( G ) and its antidual space H 1 ∼ , ρ w ( G ) , w being a moderate weight function on G × ˆ G . These spaces reduce to the well known Feichtinger algebra S 0 ( G ) and Banach space of Feichtinger distribution S (cid:2) 0 ( G ) respectively for w ≡ 1. We obtain an atomic decomposition of H 1 , ρ w ( G ) and study some properties of Gabor multipliers on the spaces L 2 ( G ) , H 1 , ρ w ( G ) and H 1 ∼ , ρ w ( G ). Finally, we prove a theorem on the compactness of Gabor multiplier operators on L 2 ( G ) and H 1 , ρ w ( G ), which reduces to an earlier result of Feichtinger [Fei 02, Theorem 5.15 (iv)] for w = 1 and G = R d .","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"235-254"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66113524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the critical values of $L$-functions of tensor product of base change for Hilbert modular forms Hilbert模形式下基变化张量积的L -函数的临界值
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1256219161
Cristian Virdol
{"title":"On the critical values of $L$-functions of tensor product of base change for Hilbert modular forms","authors":"Cristian Virdol","doi":"10.1215/KJM/1256219161","DOIUrl":"https://doi.org/10.1215/KJM/1256219161","url":null,"abstract":"In this paper we generalize some results, obtained by Shimura, Yoshida on critical values of L-functions of l-adic representations attached to tensor product of Hilbert modular forms, to the critical values of L-functions of arbitrary base change to totally real number elds of l-adic representations attached to tensor product of Hilbert modular forms.","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"347-357"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1215/KJM/1256219161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66113712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
The rationality problem for four-dimensional linear actions 四维线性动作的合理性问题
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1256219162
H. Kitayama, A. Yamasaki
{"title":"The rationality problem for four-dimensional linear actions","authors":"H. Kitayama, A. Yamasaki","doi":"10.1215/KJM/1256219162","DOIUrl":"https://doi.org/10.1215/KJM/1256219162","url":null,"abstract":"","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"359-380"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66113757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
An intrinsic characterization of the direct product of balls 球的直接积的内在特征
Journal of Mathematics of Kyoto University Pub Date : 2009-01-01 DOI: 10.1215/KJM/1260975042
A. Kodama, S. Shimizu
{"title":"An intrinsic characterization of the direct product of balls","authors":"A. Kodama, S. Shimizu","doi":"10.1215/KJM/1260975042","DOIUrl":"https://doi.org/10.1215/KJM/1260975042","url":null,"abstract":"In this paper, we give a characterization of the direct product of balls by its holomorphic automorphism group. Using a result on the standardization of certain compact group actions on complex manifolds, we show that, for a connected Stein manifold M of dimension n , if its holomorphic automorphism group contains a topological subgroup that is isomorphic to the holomorphic automorphism group of the direct product B of balls in C n , then M itself is biholomorphically equivalent to B .","PeriodicalId":50142,"journal":{"name":"Journal of Mathematics of Kyoto University","volume":"49 1","pages":"619-630"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1215/KJM/1260975042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66114116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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