ODD AND EVEN NUMBER CULTURES
نویسندگان
چکیده
منابع مشابه
Towards Even and Odd Squeezed Number States
The time evolution of even and odd squeezed states, as well as that of squeezed number states, has been given in simple, analytic form. This follows experimental work on trapped ions which has demonstrated even and odd coherent states, number states, and squeezed (but not displaced) ground states. We review this situation and consider the extension to even and odd squeezed number states. Questi...
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Aliphatic polyamides derived from odd diamine or odd dicarboxylic acid units cannot adopt a conventional sheet structure when molecular chains have an all trans conformation. However, typical fiber diffraction patterns of this sheet structure were observed in several polyamides derived from odd units such as nylons 65 and 56. Consequently, a new structure based on the establishment of intermole...
متن کاملIdentities Relating the Number of Partitions into an Even and Odd Number of Parts
If / > 0 and n > 1, let qf (n) denote the number of partitions of/? into an even number of parts, where each part occurs at most / times and Set qf(n) denote the number of partitions of n into an odd number of parts, where each part occurs at most/times. \ii>0, \etqf(0)= 1 andqf(0) = 0. For/ >Oandn > 0, \v\Aj(n) = qJ(n)-q°(n). For/= 1, it is well known [1] that , A (n) = I ~ i f n = f ^ orsome ...
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1. Introduction. It is a lovely fact that n] = f1; 2; : : : ; ng, n 1, has as many subsets X with an even cardinality jXj as those with an odd cardinality, namely 2 n?1 of both. To prove it, pair every subset X with X 1 where X 1 is Xnf1g if 1 2 X and X f1g if 1 6 2 X. Then X 7 ! X 1 is an involution that changes the parity of jXj and the result follows. More generally, in enumerative combinato...
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In this paper we examine fluctuation and frequency of the governing equation ofoscillator with odd and even nonlinearities without damping and we present a new efficientmodification of the He’s homotopy perturbation method for this equation. We applied standard andmodified homotopy perturbation method and compare them with the numerical solution (NS), also weapplied He’s Energy balance method (...
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ژورنال
عنوان ژورنال: International Journal of Pure and Apllied Mathematics
سال: 2013
ISSN: 1311-8080,1314-3395
DOI: 10.12732/ijpam.v82i5.5