共查询到20条相似文献,搜索用时 15 毫秒
1.
E.E. Escultura 《Nonlinear Analysis: Theory, Methods & Applications》2009,71(12):e420
This paper surveys the mathematics of GUT and highlights the author’s new real number system which is a continuum, non-Archimedean and non-Hausdorff, but its subspace of decimals is countably infinite, discrete, Archimedean and Hausdorff. The paper also proves Goldbach’s conjecture in and provides an overview of GUT and qualitative and computational models of many of the presently ill-defined physical concepts, e.g., gravity. 相似文献
2.
Masamichi Matsumoto 《Applied mathematics and computation》2001,120(1-3):289-300
The unified approach of invariant imbedding is extended to the case of a semi-infinite atmosphere. The integral equation satisfied by the reflection function from a semi-infinite atmosphere is derived by virtue of the approach. For stationary and non-stationary radiation fields, the equations obtained in this article coincide with those already obtained. 相似文献
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Helge Holden Raphael Hegh Krohn Steinar Johannesen 《Advances in Applied Mathematics》1983,4(4):402-421
Let Vi be short range potential and λi(ε) analytic functions. We show that the Hamiltonians Hε = −Δ + ε−2∑i = lnλi(ε)Vi((· − xi)/ε converge in the strong resolvent sense to the point interactions as ε → 0, and if Vi have compact support then the eigenvalues and resonances of Hε, which remains bounded as ε → 0, are analytic in ε in a complex neighborhood of zero. We compute in closed form the eigenvalues and resonances of Hε to the first order in ε. 相似文献
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We shall investigate, in this paper, theories related to mind, consciousness, life, evolution, existence, non-existence, cosmology, quantum fields, quantum jump, Big Bang, and higher reality. A hybrid unification between ancient and modern discoveries is discussed with a view to shedding some light on the existing theories and strengthening them. 相似文献
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Takashi Noiri 《Rendiconti del Circolo Matematico di Palermo》2008,57(3):411-421
We introduce a new set called mng-closedwhich is defined on a set with two families of sets satisfying some minimal conditions. This set enables us to unify
modifications of g-closed sets due to Levine [19].
相似文献
9.
William C. Waterhouse 《Mathematische Annalen》1987,277(3):447-451
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In this paper,we prove the convergence of the nodal expansion method,a new numerical method for partial differentisl equations and provide the error estimates of approximation solution. 相似文献
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In this paper we compare G(p), the Mellin transform (together with its analytic continuation), and , the related Hadamard finite-part integral of a function g(x), which decays exponentially at infinity and has specified singular behavior at the origin. Except when p is a nonpositive integer, these coincide. When p is a nonpositive integer, is well defined, but G(p) has a pole. We show that the terms in the Laurent expansion about this pole can be simply expressed in terms of the Hadamard
finite-part integral of a related function. This circumstance is exploited to provide a conceptually uniform proof of the
various generalizations of the Euler-Maclaurin expansion for the quadrature error functional.
Received June 11, 1997 / Revised version received December 15, 1997 相似文献
13.
Summary Starting from a categoryC, verifying certain hypotheses, we define a categoryC
♯ called normodistributive expansion ofC. The categoryC
♯is orthoquaternary, then canonical isomorphisms between subquotients ofC
♯ are composable. This is a generalization of the construction of the distributive expansion ε♯ of an exact catagory ε, which can be applied to a larger class of categories (including the category of groups).
Lavoro eseguito nell’ambito dei gruppi di ricerca matematici del C.N.R. 相似文献
Riassunto Partendo da una categoriaC, che verifica certe ipotesi, si costruisce una categoriaC ♯ detta espansione normodistributiva diC. La categoriaC ♯ risulta essere orto-quaternaria, quindi gli isomorfismi canonici fra i suoi subquozienti sono componibili. Si è così generalizzato il passaggio da una categoria esatta ε alla sua espansione distributiva ε♯, al caso di una famiglia più vasta di catagorie comprendente, fra le altre, quella (non esatta) dei gruppi.
Lavoro eseguito nell’ambito dei gruppi di ricerca matematici del C.N.R. 相似文献
14.
We obtain an expansion of
in powers of a small parameter, wherex
t
is a random process satisfying the stochastic differential equation
.Translated fromTeoriya Sluchaínykh Protsessov, Vol. 14, pp. 28–37, 1986. 相似文献
15.
Francis Clarke 《Proceedings of the Steklov Institute of Mathematics》2010,268(1):58-69
The Pontryagin maximum principle is the central result of optimal control theory. In the half-century since its appearance,
the underlying theorem has been generalized, strengthened, extended, proved and reinterpreted in a variety of ways. We review
in this article one of the principal approaches to obtaining the maximum principle in a powerful and unified context, focusing
upon recent results that represent the culmination of over thirty years of progress using the methodology of nonsmooth analysis.
We illustrate the novel features of this theory, as well as its versatility, by introducing a far-reaching new theorem that
bears upon the currently active subject of mixed constraints in optimal control. 相似文献
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Integrals of the form , common in diffraction theory, are usually evaluated asymptotically for large λ using the stationary phase technique. At caustic points the classical technique is not applicable. A computation-oriented algorithm is developed for determining the asymptotic expansion of such integrals with a Thom umbilic, the canonical form appropriate at caustic points for most cases of physical interest. 相似文献
17.
Chungou Zhang Quane Wang 《分析论及其应用》2007,23(1):76-82
In this paper, we derive the complete asymptotic expansion of classical Baskakov operators Vn (f;x) in the form of all coefficients of n^-k, k = 0, 1... being calculated explic- itly in terms of Stirling number of the first and second kind and another number G(i, p). As a corollary, we also get the Voronovskaja-type result for the operators. 相似文献
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A. A. Mogul’skiĭ 《Siberian Advances in Mathematics》2013,23(4):250-262
The so-called deviation integral (functional) describes the logarithmic asymptotics of the probabilities of large deviations for random walks generated by sums of random variables or vectors. Here an important role is played by the expansion theorem for the deviation integral in which, for an arbitrary function of bounded variation, the deviation integral is represented as the sum of suitable integrals of the absolutely continuous, singular, and discrete components composing this function. The expansion theorem for the deviation integral was proved by A. A. Borovkov and the author in [9] under some simplifying assumptions. In this article, we waive these assumptions and prove the expansion theorem in the general form. 相似文献
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John M. T. Thompson Giles W. Hunt 《Zeitschrift für Angewandte Mathematik und Physik (ZAMP)》1975,26(5):581-603
Bifurcation theories for the instability of slowly evolving systems have been developed in various disciplines, and a first step is here taken towards some desirable unification. A modern account of the authors' general branching theory for discrete systems is first presented, some new features being the introduction of principal imperfections and the delineation of the important semi-symmetric points of bifurcation. This theory, embedded in a perturbation approach ideal for quantitative analysis, is complementary to the far-reaching qualitative catastrophe theory of René Thom which offers a profound topological classification of instability phenomena. For this reason, we present here a detailed correlation of the two theories. Also presented in the paper is a survey of some fields of application ranging from classical fields such as hydrodynamics, through thermodynamics, crystallography and cosmology, to the newer domains of biology and psychology. 相似文献