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Remarks on global solutions for the semilinear diffusion equation in the de Sitter spacetime de Sitter时空中半线性扩散方程的整体解
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-10-01 DOI: 10.14492/hokmj/1607936539
Makoto Nakamura, Yuya Sato
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引用次数: 2
Reconstruction of profinite graphs from profinite groups of PIPSC-type 由PIPSC型profinite群重构profinite图
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-10-01 DOI: 10.14492/hokmj/1607936535
Yuichiro Hoshi
{"title":"Reconstruction of profinite graphs from profinite groups of PIPSC-type","authors":"Yuichiro Hoshi","doi":"10.14492/hokmj/1607936535","DOIUrl":"https://doi.org/10.14492/hokmj/1607936535","url":null,"abstract":"— In the present paper, we study profinite groups of PIPSC-type, i.e., abstract profinite groups isomorphic to the extensions determined by outer representations of PIPSCtype. In particular, we establish a “group-theoretic” algorithm for constructing, from a profinite group of PIPSC-type that is noncuspidal, a certain profinite graph.","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41566458","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
Slant Toeplitz operators on the Lebesgue space of $n$-dimensional torus $n$维环面Lebesgue空间上的Slant-Toeplitz算子
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-10-01 DOI: 10.14492/hokmj/1607936533
Gopal Datt, Shesh Kumar Pandey
{"title":"Slant Toeplitz operators on the Lebesgue space of $n$-dimensional torus","authors":"Gopal Datt, Shesh Kumar Pandey","doi":"10.14492/hokmj/1607936533","DOIUrl":"https://doi.org/10.14492/hokmj/1607936533","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47252674","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: 6
Non-relativistic Pauli–Fierz Hamiltonian for less than two photons 小于两个光子的非相对论性保利-菲尔兹哈密顿量
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-07-18 DOI: 10.14492/hokmj/2019-164
D. Dayantsolmon, A. Galtbayar
{"title":"Non-relativistic Pauli–Fierz Hamiltonian for less than two photons","authors":"D. Dayantsolmon, A. Galtbayar","doi":"10.14492/hokmj/2019-164","DOIUrl":"https://doi.org/10.14492/hokmj/2019-164","url":null,"abstract":"We consider the Pauli--Fierz model, which describes a particle (an electron) coupled to the quantized electromagnetic field and limit the number of photons to less than 2. By computing red{the resolvent explicitly}, we located the spectrum of the Hamiltonian mass. Our results do not depend on the coupling constant $e$ nor on the infrared cutoff parameter $R$.","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46813977","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
Some Remarks on the Annihilator Graph of a Commutative Ring 关于交换环的湮灭子图的几点注记
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-06-01 DOI: 10.14492/hokmj/1602036028
M. Adlifard, S. Payrovi
{"title":"Some Remarks on the Annihilator Graph of a Commutative Ring","authors":"M. Adlifard, S. Payrovi","doi":"10.14492/hokmj/1602036028","DOIUrl":"https://doi.org/10.14492/hokmj/1602036028","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44517539","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
Constant mean curvature spacelike hypersurfaces in standard static spaces: rigidity and parabolicity 标准静态空间中的常平均曲率类空间超曲面:刚性和抛物线性
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-06-01 DOI: 10.14492/hokmj/1602036027
E. L. Lima, H. F. Lima, Eraldo A. LIMA Jr., A. Medeiros
{"title":"Constant mean curvature spacelike hypersurfaces in standard static spaces: rigidity and parabolicity","authors":"E. L. Lima, H. F. Lima, Eraldo A. LIMA Jr., A. Medeiros","doi":"10.14492/hokmj/1602036027","DOIUrl":"https://doi.org/10.14492/hokmj/1602036027","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43160111","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
Eigenvalues and resonances of Dirac operators with dilation analytic potentials diverging at infinity 膨胀解析势在无穷远处发散的狄拉克算子的特征值和共振
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-06-01 DOI: 10.14492/hokmj/1602036026
H. Ito
{"title":"Eigenvalues and resonances of Dirac operators with dilation analytic potentials diverging at infinity","authors":"H. Ito","doi":"10.14492/hokmj/1602036026","DOIUrl":"https://doi.org/10.14492/hokmj/1602036026","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44428185","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
Note on local properties of the exponents and boundedness of Hardy-Littlewood maximal operator in variable Lebesgue spaces 关于变Lebesgue空间中Hardy-Littlewood极大算子的指数和有界性的局部性质的注记
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-06-01 DOI: 10.14492/hokmj/1602036024
T. Kopaliani, Shalva Zviadadze
{"title":"Note on local properties of the exponents and boundedness of Hardy-Littlewood maximal operator in variable Lebesgue spaces","authors":"T. Kopaliani, Shalva Zviadadze","doi":"10.14492/hokmj/1602036024","DOIUrl":"https://doi.org/10.14492/hokmj/1602036024","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42923739","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: 1
A concurrence theorem for alpha-connections on the space of t-distributions and its application t分布空间上α -连接的并发定理及其应用
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-06-01 DOI: 10.14492/hokmj/1602036023
A. Mori
{"title":"A concurrence theorem for alpha-connections on the space of t-distributions and its application","authors":"A. Mori","doi":"10.14492/hokmj/1602036023","DOIUrl":"https://doi.org/10.14492/hokmj/1602036023","url":null,"abstract":"","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66754125","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: 2
The ring of modular forms of $mathrm{O}(2,4;mathbb{Z})$ with characters 带字符的$ mathm {O}(2,4;mathbb{Z})$的模形式环
IF 0.5 4区 数学
Hokkaido Mathematical Journal Pub Date : 2020-05-01 DOI: 10.14492/hokmj/2020-355
Atsuhira Nagano, K. Ueda
{"title":"The ring of modular forms of $mathrm{O}(2,4;mathbb{Z})$ with characters","authors":"Atsuhira Nagano, K. Ueda","doi":"10.14492/hokmj/2020-355","DOIUrl":"https://doi.org/10.14492/hokmj/2020-355","url":null,"abstract":"We show that the ring of modular forms with characters for $mathrm{O}(2,4;mathbb{Z})$ is generated by forms of weights 4, 4, 6, 8, 10, 10, 12, and 30 with three relations of weights 8, 20, and 60. The proof is based on the study of a moduli space of K3 surfaces.","PeriodicalId":55051,"journal":{"name":"Hokkaido Mathematical Journal","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44570053","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: 2
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