On the Possible Numbers of Operators of Order 2 in a Group of Order 2tm
نویسنده
چکیده
Incidentally, the value of p obtained in (9) shows that the torsion, unlike the curvature, is independent of v. An arbitrary field of force (1) produces oo trajectories, of which oo pass through a given point in a given direction. These oo trajectories have, at the given point, a common osculating plane and a common torsion. The locus of centers of their osculating spheres is a straight line. Thus every field of force gives rise to a correspondence between the direction elements and the straight lines of space,
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