Results 261 to 270 of about 7,003,123 (311)
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Canadian Journal of Mathematics, 1999
AbstractA field F is said to be tractable when a condition described below on the simultaneous representation of quaternion algebras holds over F. It is shown that a global field F is tractable iff F has at most one dyadic place. Several other examples of tractable and nontractable fields are given.
Chacron, M. +2 more
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AbstractA field F is said to be tractable when a condition described below on the simultaneous representation of quaternion algebras holds over F. It is shown that a global field F is tractable iff F has at most one dyadic place. Several other examples of tractable and nontractable fields are given.
Chacron, M. +2 more
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Fermion Fields, Boson Fields, and Gravitational Field
Annalen der Physik, 1976AbstractIf a tetrad theory is derivable from a variational principle with a Lagrangian 𝔏 of the form 𝔏 = 𝔏F+𝔏M 6 tetrad components will be defined by the vacuum equations if the energy momentum tensor is symmetric. Therefore, we look for a realisation of a programme proposed in a little different way by TREDER according to which the 16 tetrad field ...
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Field emission, field ionization, and field desorption
Surface Science, 1994Abstract A brief description of the essential features of the theory of field emission, field ionization, field desorption, and the field emission and field ion microscopes is presented. The principal applications of field emission including work function and surface diffusion measurements, and a brief sketch of the theory of diffusion are also given.
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Visual Fields: Field Interpretation
2009The individual (or single field) printout (Fig. 17.1) contains a wealth of information to help clinicians decide whether the visual field is abnormal and specifically the likelihood of it being a glaucomatous visual field. The printout can be divided into four convenient parts to aid interpretation (Fig. 17.1).
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Molecular imaging in oncology: Current impact and future directions
Ca-A Cancer Journal for Clinicians, 2022Steven P Rowe, Martin G Pomper
exaly
2020
The electric and magnetic fields are easily derived from the vector potential using the relations $$\displaystyle \begin{aligned} \mathbf{E}(\mathbf{r},t)=-\frac{{\partial}\mathbf{A}}{{\partial}t}\\ \mathbf{B}(\mathbf{r},t)=\boldsymbol{\nabla}\mathbf{xA}. \end{aligned} $$
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The electric and magnetic fields are easily derived from the vector potential using the relations $$\displaystyle \begin{aligned} \mathbf{E}(\mathbf{r},t)=-\frac{{\partial}\mathbf{A}}{{\partial}t}\\ \mathbf{B}(\mathbf{r},t)=\boldsymbol{\nabla}\mathbf{xA}. \end{aligned} $$
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Management of glioblastoma: State of the art and future directions
Ca-A Cancer Journal for Clinicians, 2020Aaron Tan, David M Ashley, Giselle Lopez
exaly