نتایج جستجو برای: buckingham π theorem
تعداد نتایج: 175824 فیلتر نتایج به سال:
This paper presents a proof of Preissman’s Theorem, a theorem from the study of Riemannian Geometry that imposes restrictions on the fundamental group of compact, negatively curved spaces. This particular proof presented hinges upon the notion that, in a negatively curved space, the interior angles of triangles add up to less than π.
If G is a Polish group, then the category of Polish G-spaces and continuous G-mappings has a universal object. §0. Preface It is known from [2] that 0.1. Theorem (de Vries). Let G be a separable locally compact metric group. Then the category of continuous G-maps and separable complete metric G-spaces has a universal object. In other words, there is a separable complete metric space X on which ...
Let θ(t) denote the increment of argument product π−s/2Γ(s/2) along segment connecting points s=1/2 and s=1/2+it, tn solution equation θ(t)=(n−1)π, n=0,1,…. The numbers are called Gram points. In this paper, we consider approximation a collection analytic functions by shifts in Riemann zeta-function (ζ(s+itkα1),…,ζ(s+itkαr)), k=0,1,…, where α1,…,αr different positive not exceeding 1. We prove t...
Let S ( t ) denote the argument of Riemann zeta-function, defined as = 1 π Im log ζ / 2 + i . Assuming hypothesis, we prove that Ω ± This improves classical Ω-results Montgomery (Theorem 2; Comment. Math. Helv. 52 (1977) 511–518) and matches with Ω-result obtained by Bondarenko Seip Ann. 372 (2018) 999–1015).
We study conditions on a sequence of probability measures {µ n } n on a commutative hyper-group K, which ensure that, for any representation π of K on a Hilbert space Ᏼ π and for any ξ ∈ Ᏼ π , (K π x (ξ)dµ n (x)) n converges to a π-invariant member of Ᏼ π. 1. Introduction. The mean ergodic theorem was originally formulated by von Neu-mann [13] for one-parameter unitary groups in Hilbert space. ...
Introduction. Let G be a reductive Lie group with maximal compact subgroup K and let Γ be a cocompact discrete subgroup of G. We consider the induced representation IndΓ (C), which is the canonical representation on the space L2(Γ\G). The duality theorem of Gelfand [6] states that there is a Frobenius reciprocity as follows: for any irreducible unitary representation π of G it holds HomG,cont(I...
Given a topological group G, and a finitely generated group Γ, a homomorphism π : Γ→G is locally rigid if any nearby by homomorphism π is conjugate to π by a small element of G. In 1964, Weil gave a criterion for local rigidity of a homomorphism from a finitely generated group Γ to a finite dimensional Lie group G in terms of cohomology of Γ with coefficients in the Lie algebra of G. Here we ge...
Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using the four-body decay channels D0 → K−K+π−π+, D+ → K0 S K+π−π+, and D+ s → K 0 S K+π−π+. The T violation asymmetry is obtained using triple-product correlations and assuming the validity of the CPT theorem. We find the asymmetry values to be ATviol(D 0) = 0.010 ± 0.057(stat.) ± 0.037(syst.), ...
(1) B is k-isogenous to an abelian subvariety of A. (2) fB|fA in Q[T ]. In particular, A is k-isogenous to B if and only if fA = fB. Moreover, A is k-simple if and only if fA is a power of an irreducible polynomial in Q[T ]. Recall that the roots of fA in C are “Weil q-integers”: algebraic integers whose images in C all have absolute value q. By Theorem 1.1 to describe the isogeny classes of ab...
We construct a chiral Lagrangian containing besides the usual pion field (π) also its first radial excitation (π′). The Lagrangian is derived by bosonization of a Nambu– Jona-Lasinio quark model with separable non-local interactions, with form factors corresponding to 3–dimensional ground and excited state wave functions. Chiral symmetry breaking is governed by the NJL gap equation. The effecti...
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