منابع مشابه
Basic Properties of Even and Odd Functions
In this paper x, r are real numbers. Let A be a set. We say that A is symmetrical if and only if: (Def. 1) For every complex number x such that x ∈ A holds −x ∈ A. Let us note that there exists a subset of C which is symmetrical. Let us observe that there exists a subset of R which is symmetrical. In the sequel A denotes a symmetrical subset of C. Let R be a binary relation. We say that R has s...
متن کاملThe Odd and Even Intersection Properties
A non-empty family S of subsets of a finite set A has the odd (respectively, even) intersection property if there exists non-empty B ⊆ A with |B∩S| odd (respectively, even) for each S ∈ S. In characterizing sets of integers that are quadratic nonresidues modulo infinitely many primes, Wright asked for the number of such S, as a function of |A|. We give explicit formulae.
متن کاملFedosov Supermanifolds: Basic Properties and the Difference in Even and Odd Cases
We study basic properties of supermanifolds endowed with an even (odd) symplectic structure and a connection respecting this symplectic structure. Such supermanifolds can be considered as generalization of Fedosov manifolds to the supersymmetric case. Choosing an appropriate definition of inverse (second-rank) tensor fields on supermanifolds we consider the symmetry behavior of tensor fields as...
متن کاملAbsolute testing of flats by using even and odd functions.
We describe a modified three-flat method. In a Cartesian coordinate system, a flat can be expressed as the sum of even-odd, odd-even, even-even, and odd-odd functions. The even-odd and the odd-even functions of each flat are obtained first, and then the even-even function is calculated. All three functions are exact. The odd-odd function is difficult to obtain. In theory, this function can be s...
متن کاملSynchrotron Radiation Studies on Even-Odd and Odd-Even Nylons
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Formalized Mathematics
سال: 2009
ISSN: 1898-9934,1426-2630
DOI: 10.2478/v10037-009-0022-x