(historical)
Shit, all they wanted was to be back in Wyoming or South Carolina or Pennsylvania or wherever the hell they came from, copping a feel at a drive-in movie, sneaking a fifth with the guys, dreaming of their first car. Not slogging through a stinking tropical jungle in Chinkland, fighting off malaria, wondering if a Bouncing Betty was going to blow their balls off.
Ford circles are a collection of horocycles in ℍ used by Ford to study continued fractions in papers such as [2, 3]. […] Two Ford circles intersect in at most a single point, and the interiors of the two circles are disjoint. In fact, one can check that the Ford circles C_a/b and C_c/d are tangent if and only if |ad-bc|=1.
Arthur Carlson, New Yorkian Specialist, 503 Fifth Avenue, New York.
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