منابع مشابه
New coins from old, smoothly
Given a (known) function f : [0, 1] → (0, 1), we consider the problem of simulating a coin with probability of heads f(p) by tossing a coin with unknown heads probability p, as well as a fair coin, N times each, where N may be random. The work of Keane and O’Brien (1994) implies that such a simulation scheme with IPp(N < ∞) = 1 exists iff f is continuous. Nacu and Peres (2005) proved that f is ...
متن کاملAcipenser oxyrhynchus and Scaphirhynchus platorynchus
Horseradish peroxidase histochemical studies of afferent and efferent projections of the trigeminal nerve in two species of chondrostean fishes revealed medial, descending and ascending projections. Entering fibers of the trigeminal sensory root project medially to terminate in the medial trigeminal nucleus, located along the medial wall of the rostral medulla. Other entering sensory fibers tur...
متن کاملFast Simulation Of New Coins From Old
Let S ⊂ (0, 1). Given a known function f : S → (0, 1), we consider the problem of using independent tosses of a coin with probability of heads p (where p ∈ S is unknown) to simulate a coin with probability of heads f(p). We prove that if S is a closed interval and f is real analytic on S, then f has a fast simulation on S (the number of p-coin tosses needed has exponential tails). Conversely, i...
متن کاملThe Coins of the Pāratarājas
It seems fitting that, at a seminar organized to celebrate the 100 th anniversary of the Numismatic Society of India, I present a paper that offers a solution to a problem even older than the Society. In 1905, E. J. Rapson had published a small group of five coins which he identified as „Coins with reverse type “Svastika.”‟ 2 The coins were unified by the presence on their reverses of a central...
متن کاملSome old books and ancient coins from the Hunter Collection.
in the embarrassing situation of having little or no catgut industry. Some far-sighted Edinburgh surgeons, realizing the problems, requested a local pharmacist, George Merson to undertake the commercial manufacture of this material. This he did in an old manse at St. John's Hill in the Pleasance, Edinburgh, and by the end of the war the business was well under way. About this time Merson began ...
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ژورنال
عنوان ژورنال: The Journal of Egyptian Archaeology
سال: 1922
ISSN: 0307-5133
DOI: 10.2307/3853693