 | American Mathematical Society - Mathematics - 1903 - 712 pages
...branch of its flecnode curve in common with that of S. This family of oo1 surfaces can be described as an involution of which any surface of the family and...flecnode curve, form an involution in the usual sense. 15. Mr. Allen's paper is in abstract as follows : The units of a real non-nilpotent hypercomplex number... | |
 | American Mathematical Society - Electronic journals - 1905 - 576 pages
...surface form a -pair. The primary and secondary developables of the branch of the fi.ecnode surface considered, are the double surfaces of this involution....of these surfaces, at every point of their common fiecnode curve, form an involution in the usual sense. We proceed to prove these theorems. Since C... | |
 | Adolf Krazer - Mathematics - 1905 - 784 pages
...branch of its flecnode curve in common with that of S. This family of oo1 surfaces may be described as an involution of which any surface of the family and...theory of the invariants and covariants of the equation yW + 4A t/<3> + 6Piy" + 4psy' + p^y = 0, under the transformations if = *(*)», 6 = /"(*), where A... | |
 | Mathematics - 1905 - 802 pages
...branch of its flecnode curve in common with that of S. This family of oo1 surfaces may be described as an involution of which any surface of the family and...theory of the invariants and covariants of the equation yW + 4PlyW + Op^y" + 4ps«/' + Piy = 0, under the transformations where A and /' are arbitrary functions.... | |
 | Ernest Julius Wilczynski - Curves - 1906 - 316 pages
...flecnode surface form a pair. The primary and secondary developables of the branch of the flecnode surface considered, are the double surfaces of this involution....flecnode curve, form an involution in the usual sense. We proceed to prove these theorems. Since Cy is a branch of the flecnode curve, we may assume u13 =... | |
 | American Mathematical Society - Differential equations - 1910 - 254 pages
...flecnode surface form a pair. The primary and secondary developables of the branch of the flecnode surface considered, are the double surfaces of this involution....flecnode curve, form an involution in the usual sense. In the course of these few lectures I have been able to touch merely the most important points of this... | |
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This family of oo1 surfaces may be described as an involution, of which any surface of the family and its flecnode surface form a pair. The primary and secondary developables of the branch of the flecnode surface considered, are the double surfaces of... 