97,116 research outputs found
Curves of Finite Total Curvature
We consider the class of curves of finite total curvature, as introduced by
Milnor. This is a natural class for variational problems and geometric knot
theory, and since it includes both smooth and polygonal curves, its study shows
us connections between discrete and differential geometry. To explore these
ideas, we consider theorems of Fary/Milnor, Schur, Chakerian and Wienholtz.Comment: 25 pages, 4 figures; final version, to appear in "Discrete
Differential Geometry", Oberwolfach Seminars 38, Birkhauser, 200
Spartan Daily, March 5, 1999
Volume 112, Issue 27https://scholarworks.sjsu.edu/spartandaily/9384/thumbnail.jp
On the origin of the family
We present a game theoretic model to explain why people form life long monogamous families.
Three components are essential in our framework, paternal investment, fatherhood
uncertainty, and, perhaps the most distinctive feature of all, the overlap of children of different
ages. When all three conditions are present, monogamy is the most efficient form of
sexual organization in the sense that it yields greater survivorship than serial monogamy,
group marriage, and polygyny. Monogamy is also the only configuration that fosters altruistic
ties among siblings. Finally, our result sheds light to the understanding of why
most religions center around the monogamous fidelity family
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