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Ernst Schaumann Erwin Kausch Karl-Heinz Klaska Rolf Klaska Otto Jarchow 《Journal of heterocyclic chemistry》1977,14(5):857-860
The crystal and molecular structures of the cycloadduct from isopropyl[α-(dimethylthio-carbamoyl)isopropyl]carbodiimide and methyl isothiocyanate were determined by single-crystal X-ray methods. The product was established to be 2-(1-isopropyl-3,5-dimethyl-4,6-dithioxo-hexahydro-1,3,5-triazine-2-ylidenamino)-N,N-dimethylthioisoburyramide, in which contrary to expectations based on hybridisation the heterocyclic ring adopts a boat conformation. 相似文献
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After some introductory propositions, we give a dual characterization of those locally convex spaces which satisfy the Mackey
convergence condition or the fast convergence condition by means of Schwartz topologies. Making use of the universal Schwartz
space (l
∞
,τ(l
∞
,l
1)) we prove some representation theorems for bornological and ultrabornological spaces, that is, every bornological spaceE is a dense subspace of an inductive limit lim indE
a, a∈A, ofseparable Banach spacesE
a, and every Mackey null sequence inE is a null sequence in someE
a. IfE is ultrabornological, thenE can be represented as lim indE
a,a∈A, allE
a separable Banach spaces, such that every fast null sequence inE is a null sequence in someE
a. 相似文献
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Dr. Hans Jarchow 《Mathematische Zeitschrift》1970,113(4):326-334
Ohne Zusammenfassung 相似文献
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Hans Jarchow 《Mathematische Annalen》1973,203(3):211-214
Ohne ZusammenfassungHerrn Professor B. L. van der Waerden zum 70. Geburtstag am 2. Februar 1973 gewidmet 相似文献