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891.
T. A. Ford D. Steele 《Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy》1999,55(14):2823
A programme is developed for the computation of the contribution of the rotation of the dipole moment to vibrational transition moments. It is argued that this return to fundamentals has much in its favour compared with earlier methods based on pseudo isotope calculations. The programme is applied to H2O. Some discrepancies are noted with the results of the matrix method originally proposed by Biarge, Herranz and Morcillo. The existence of internal relationships between the elements of the APT is demonstrated. Such relationships are of importance in the refinement of the APT to fit experimental transition moments. 相似文献
892.
We give sufficient conditions on Banach spaces X and Y so that their projective tensor product X ⊗π
Y, their injective tensor product X ⊗ɛ
Y, or the dual (X ⊗π
Y)* contain complemented copies of ℓp. 相似文献
893.
Krzysztof Szymański 《Hyperfine Interactions》2000,126(1-4):431-434
The analytical form of the antisymmetric part of the Mössbauer intensity tensor, directly available in the measurements with circularly polarised source, is derived. The possibility of measurements of the hyperfine magnetic field vector is discussed for the case when quadrupole interaction cannot be neglected. 相似文献
894.
Let T ∈ ℒ(X) be a bounded operator on a complex Banach space X. If V is an open subset of the complex plane such that λ-T is of Kato-type for each λ ∈ V, then the induced mapping f(z) ↦ (z-T)f(z) has closed range in the Fréchet space of analytic X-valued functions on V. Since semi-Fredholm operators are of Kato-type, this generalizes a result of Eschmeier on Fredholm operators and leads to
a sharper estimate of Nagy’s spectral residuum of T. Our proof is elementary; in particular, we avoid the sheaf model of Eschmeier and Putinar and the theory of coherent analytic
sheaves. 相似文献
895.
QIAN Shang-Wu 《理论物理通讯》2006,46(11)
This paper briefly discusses some interesting features for the external region of the spherical symmetric mass in the new theory of gravitation VGM, Le. The theory of gravitation by considering the vector graviton field and the metric field, such as pseudo-singularity, curvature tensor, static limit, event horizon, and the radial motion of a particle. All these features are different from the corresponding features obtained from general relativity. 相似文献
896.
IntroductionAnaturalorartificialmaterialisusuallymicroscopicallyheterogeneousandownsacertainmicrostructurecomprisingthematerialconstitutions (crystalloid ,dislocations ,phasetransformations,micro_cracks,voids,fibers,inclusions) .Itisnotsurprisingthatanumbe… 相似文献
897.
A. Raouf Chouikha 《Geometriae Dedicata》2002,93(1):107-112
We describe examples of metrics in the conformal class [g] on some conformally flat Riemannian manifolds (M,g]. These metrics have a constant scalar curvature and an harmonic curvature with nonparallel Ricci tensor. 相似文献
898.
本文利用各向异性张力有限元的特点设计了灵活而有效的各向加权异性有限元算法,采用这种方法,计算了离心叶轮内部准三元流场。 相似文献
899.
根据引力场和静电场的相似性质,通过类比方法由静电场的麦克斯韦应力张量得出了引力场中的应力张量,并用它计算均质球体内部的万有引力。 相似文献
900.
Jolanta Słomińska 《Central European Journal of Mathematics》2003,1(3):327-331
In this note we show that the main results of the paper [PR] can be obtained as consequences of more general results concerning
categories whose morphisms can be uniquely presented as compositions of morphisms of their two subcategories with the same
objects. First we will prove these general results and then we will apply it to the case of finite noncommutative sets. 相似文献