Results 61 to 70 of about 222,859 (215)
1,1′-Bis(1-acetyl-5-methyl-1H-pyrazol-3-yl)ferrocene
Acta Crystallographica Section E, 2011 The title compound, [Fe(C11H11N2O)2], crystallizes with two independent molecules in the asymmetric unit which have have different conformations. In one molecule, the two ferrocene cyclopentadienyl rings are fully eclipsed and the two pyrazole rings are ...
Bei-Bei Zhu +3 more
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(E)-Ethyl 3-(2-fluoroanilino)-2-(4-methoxyphenyl)acrylate
Acta Crystallographica Section E, 2008 The title compound, C18H18FNO3, consists of three individually planar subunits, namely two substituted benzene rings and one aminoacrylate group. The dihedral angle between the two benzene rings is 47.48 (8)°.
Hai-Liang Zhu +3 more
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Corrections to: “Torsion free abelian groups quasiprojective over their endomorphism rings. II” [PDF]
, 1978 C. Vinsonhaler
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A Note on the Square Subgroups of Decomposable Torsion-Free Abelian Groups of Rank Three
Annales Mathematicae Silesianae, 2018 A hypothesis stated in [16] is confirmed for the case of associative rings. The answers to some questions posed in the mentioned paper are also given. The square subgroup of a completely decomposable torsion-free abelian group is described (in both cases
Woronowicz Mateusz
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Classification of Finite Rings of Order p6 by Generators and Relations
Journal of Mathematics, 2013 For any finite abelian group (R,+), we define a binary operation or “multiplication” on R and give necessary and sufficient conditions on this multiplication for R to extend to a ring. Then we show when two rings made on the same group are isomorphic. In
P. Karimi Beiranvand +2 more
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Artinian-finitary groups over commutative rings [PDF]
, 2003 B. A. F. Wehrfritz
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Super strongly clean group rings
Discussiones Mathematicae - General Algebra and Applications, 2023 Amit B. Singh, Susheel Kumar
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The Rings of (2060) Chiron: Evidence of an Evolving System
The Astrophysical Journal LettersThe centaur (2060) Chiron has long been a candidate for hosting material in orbit, based on occultation and photometric and spectroscopic data. Here, we present a multichord stellar occultation observed on 2023 September 10 UT that reveals new and ...
C. L. Pereira +56 more
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The inverse problem for universal deformation rings and the special\n linear group [PDF]
, 2013 Krzysztof Dorobisz
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ATISINE: THE HETEROCYCLIC RING AND FUNCTIONAL GROUPS [PDF]
, 1954 O. E. Edwards, Tara Singh
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