منابع مشابه
A study of the soil flagellate Phalansterium solitarium Sandon 1924 with preliminary data on its ultra structure
The genus Phalansterium, which contains three named species, was created by Cienkowski (1870) for Monas consociatum Fresenius 1858. Ph. digitatum Stein 1878 from freshwater and Ph. solitarium Sandon 1924 from soil were later been added to the genus. Hibberd (1983) considered it possible that Phalansterium consociatum and Ph. digitatum are conspecific. As defined by light microscopy, members of ...
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We present a certain geometrical interpretation of the natural numbers, where these numbers appear as joint products of 5and 3-multiples located at specified positions in a revolving chamber. Numbers without factors 2, 3 or 5 appear at eight such positions, and any prime number larger than 7 manifests at one of these eight positions after a specified amount of rotations of the chamber. Our appr...
متن کاملStein Points
An important task in computational statistics and machine learning is to approximate a posterior distribution p(x) with an empirical measure supported on a set of representative points {xi}i=1. This paper focuses on methods where the selection of points is essentially deterministic, with an emphasis on achieving accurate approximation when n is small. To this end, we present Stein Points. The i...
متن کاملHolomorphic fiber bundle with Stein base and Stein fibers
A surjective holomorphic map Π : X → Y between complex spaces is said to be a Stein morphism, if for every point y ∈ Y , there exists an open neighborhood U of y such that Π(U) is Stein. In 1977, Skoda [12] showed that a locally trivial analytic fiber bundle Π : X → Ω with Stein base and Stein fibers is not necessarily a Stein manifold. Thus giving a negative answer to a conjecture proposed in ...
متن کاملAlgebraic Stein Varieties
It is well-known that the associated analytic space of an affine variety defined over complex number field is Stein but the converse is not true, that is, an algebraic Stein variety is not necessarily affine. In this talk, we will give sufficient and necessary conditions for an algebraic Stein variety to be affine. One of our results is that a quasi-projective variety Y defined over complex num...
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ژورنال
عنوان ژورنال: Science
سال: 1883
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-2.36.496