Results 11 to 20 of about 672,837 (253)
Regularity of Noetherian local rings
Journal of Algebra, 2004 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Furuya, Mamoru, Niitsuma, Hiroshi
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Al-Rafidain Journal of Computer Sciences and Mathematics, 2009 In this work we give some new properties of GP- ideals as well as the relation between GP- ideals, - π regular and simple ring. Also we consider rings with every principal ideal are GP- ideals and establish relation between such rings with strongly ...
Raida Mahmood, Shahla Khalil
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Fibonacci spirals may not need the Golden Angle
Quantitative Plant Biology, 2022 Phyllotaxis, the regular arrangement of plant lateral organs, is an important aspect of quantitative plant biology. Some models relying on the geometric relationship of the shoot apex and organ primordia focus mainly on spiral phyllotaxis, a common ...
Xiaofeng Yin, Hirokazu Tsukaya
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Characterizing water vapour concentration dependence of commercial cavity ring-down spectrometers for continuous on-site atmospheric water vapour isotope measurements in the tropics [PDF]
Atmospheric Measurement Techniques, 2021 The recent development and improvement of commercial laser-based spectrometers have expanded in situ continuous observations of water vapour (H2O) stable isotope compositions (e.g. δ18O and δ2H) in a variety of sites worldwide.
S. Komiya +8 more
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On the Grothendieck-Serre conjecture on principal bundles in mixed characteristic [PDF]
, 2016 Let R be a regular local ring. Let G be a reductive R-group scheme. A conjecture of Grothendieck and Serre predicts that a principal G-bundle over R is trivial if it is trivial over the quotient field of R. The conjecture is known when R contains a field.
Fedorov, Roman
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Proceedings of the American Mathematical Society, 1963 This paper generalizes slightly a result of Kunz [1 ] and Nakai [2]. If R> S are commutative rings with identity we introduce a module D*(R/S) defined as the quotient of the module D(R/S) of S differentials of R by the submodule consisting of elements which are mapped to zero by every homomorphism of D(R/S) having values in a finitely generated R ...
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The distribution of the ring current: Cluster observations [PDF]
Annales Geophysicae, 2011 Extending previous studies, a full-circle investigation of the ring current has been made using Cluster 4-spacecraft observations near perigee, at times when the Cluster array had relatively small separations and nearly regular tetrahedral ...
Q.-H. Zhang +11 more
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Land, 2021 Spatio-temporal characterization of urban expansion is the first step towards understanding how cities grow in space. We summarize two approaches used in urban expansion measurement, namely, concentric-ring analysis and grid-based analysis.
Su Wu +4 more
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A sufficient condition for strong $F$-regularity [PDF]
, 2014 Let $(R,\mathfrak{m},K)$ be an $F$-finite Noetherian local ring which has a canonical ideal $I \subsetneq R$. We prove that if $R$ is $S_2$ and $H^{d-1}_{\mathfrak{m}}(R/I)$ is a simple $R\{F\}$-module, then $R$ is a strongly $F$-regular ring.
De Stefani, Alessandro +1 more
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A characterization of regular local rings [PDF]
Proceedings of the American Mathematical Society, 1971 For a local ring, ( A , M )
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