Results 11 to 20 of about 7,455,139 (262)
Regular overrings of regular local rings [PDF]
Transactions of the American Mathematical Society, 1972 The local factorization theorem of Zariski and Abhyankar characterizes all 2 2 -dimensional regular local rings which lie ...
Judith Sally
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Differential Basis and p-Basis of a Regular Local Ring [PDF]
Proceedings of the American Mathematical Society, 1984 We prove that any differential basis of a regular local ring R R of characteristic
Kimura, Tetsuzo, Niitsuma, Hiroshi
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Characterizations of rings and modules by means of lattices [PDF]
, 1965 PhDIn this thesis we study the relationship between the lattice of submodules and the algebraic structure of a module. The key remark in our study will be the fact that the homomorphisms between two independent submadules of a module can be ...
Stephenson, W.
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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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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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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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, 2002 Over the past 25 years, I have been immersed in research in Algebra and more particularly in ring theory. I embarked on writing this book on Smarandache rings (Srings) specially to motivate both ring theorists and Smarandache algebraists to develop and ...
Vasantha, Kandasamy
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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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