منابع مشابه
Complex Strategies in the Iterated Prisoner's Dilemma
A modiied version of the Iterated Prisoner's Dilemma is proposed and examined. At each move of the game a deenitive renunciation to further interactions with the other player is allowed. The results of a simulation are presented. This simulation uses the 95 proposed strategies in a tournament organized by the French edition of Scientiic American. The conclusions are analogous to those of R. Axe...
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We report on the production of a pulsed molecular beam of metastable NH (a 1∆) radicals and present first results on the Stark deceleration of the NH (a 1∆, J = 2,MΩ = −4) radicals from 550 m/s to 330 m/s. The decelerated molecules are excited on the spin-forbidden A 3Π ← a 1∆ transition, and detected via their subsequent spontaneous fluorescence to the X 3Σ−, v” = 0 ground-state. These experim...
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For \natural enough" systems of ordinal notation we show that times iterated local reeection schema over a suuciently strong arithmetic T proves the same 0 1-sentences as ! times iterated consistency. A corollary is that the two hierarchies catch up modulo relative interpretability exactly at-numbers. We also derive the following more general \mixed" formulas estimating the consistency strength...
متن کاملThe secondary radicals of submodules
Let $R$ be a commutative ring with identity and let $M$ be an $R$-module. In this paper, we will introduce the secondary radical of a submodule $N$ of $M$ as the sum of all secondary submodules of $M$ contained in $N$, denoted by $sec^*(N)$, and explore the related properties. We will show that this class of modules contains the family of second radicals properly and can be regarded as a dual o...
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ژورنال
عنوان ژورنال: Proceedings of the American Mathematical Society
سال: 1973
ISSN: 0002-9939
DOI: 10.1090/s0002-9939-1973-0318721-1