Union-Preserving Transformations of Differential-Elements
نویسندگان
چکیده
منابع مشابه
Union-preserving Transformations of Space
1. General statement. Soph us Lie studied transformations from lineal-elements into lineal-elements, and also transformations from surface-elements into surface-elements of space. The contact group is obtained by requiring all unions to be converted into unions. Lie's fundamental theorems may be stated as follows. All the contact linealelement transformations form the group of extended point tr...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1943
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.29.9.271