منابع مشابه
A Bishop surface with a vanishing Bishop invariant
We derive a complete set of invariants for a formal Bishop surface near a point of complex tangent with a vanishing Bishop invariant under the action of formal transformations. We prove that the modular space of Bishop surfaces with a vanishing Bishop invariant and with a fixed Moser invariant s < ∞ is of infinite dimension. We also prove that the equivalence class of the germ of a generic real...
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We define the differential operator ∂ ∂z on infinitely differentiable functions (also called smooth or C∞ functions) on some open set in C by ∂ ∂z = 1 2 ( ∂ ∂x + i ∂ ∂y ). A quick calculation shows that ∂ ∂z obeys the product rule. Recall that a function f is holomorphic if and only if ∂ ∂z (f) = 0. A function is biholomorphic, or an analytic isomorphism, if it is holomorphic and has holomorphi...
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Performance details for special purpose, high velocity sabots are described. These sabots were designed and developed for launching high density projectiles, of rod form, with overall length to diameter ratios varying from less than one to twenty-five.
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SIR,-May I add a postscript to the delightful and fully deserved eulogy of the late Sir Harold Gillies by your correspondent Mr. Patrick Clarkson (10 September, p. 641). I was present in Boulogne one day in the autumn of 1915 with a Captain Harry Grey, a Canadian E.N.T. surgeon, when the meeting I am about to describe took place. He and I, as officers of the same motor ambulance unit near Poper...
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ژورنال
عنوان ژورنال: Theology
سال: 1921
ISSN: 0040-571X,2044-2696
DOI: 10.1177/0040571x2100201106