Download Application of Geometric Algebra to Electromagnetic by Andrew Seagar PDF

By Andrew Seagar

This paintings offers the Clifford-Cauchy-Dirac (CCD) approach for fixing difficulties related to the scattering of electromagnetic radiation from fabrics of all kinds.

It permits an individual who's to grasp options that bring about less complicated and extra effective options to difficulties of electromagnetic scattering than are at present in use. The procedure is formulated by way of the Cauchy kernel, unmarried integrals, Clifford algebra and a whole-field procedure. this can be unlike many traditional suggestions which are formulated when it comes to Green's services, double integrals, vector calculus and the mixed box quintessential equation (CFIE). while those traditional concepts result in an implementation utilizing the tactic of moments (MoM), the CCD procedure is carried out as alternating projections onto convex units in a Banach space.

The final end result is an essential formula that lends itself to a extra direct and effective resolution than conventionally is the case, and applies with out exception to every kind of fabrics. On any specific laptop, it ends up in both a speedier resolution for a given challenge or the power to resolve difficulties of better complexity. The Clifford-Cauchy-Dirac approach deals very actual and important merits in uniformity, complexity, velocity, garage, balance, consistency and accuracy.

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Additional resources for Application of Geometric Algebra to Electromagnetic Scattering: The Clifford-Cauchy-Dirac Technique

Example text

The other ten components are identically zero. Each component in a Clifford number is made up from two parts: a coefficient and a unit. The coefficient is a numeric entity such as a real or complex number. In algebraic calculations, when the value of the numeric coefficient is unknown, a symbolic variable which represents the value of the coefficient is used instead. It is also possible to use matrices and operators as coefficients. For problems in electromagnetism two types of coefficients are used: complex numbers and partial differential operators.

14 1 History In order to reproduce Maxwell’s original equations [1]3 it is necessary to ensure that the Clifford representation of the electromagnetic field together with the Clifford representation of the partial differential operators (div ∇·, curl ∇× and ∂t∂ ) form a correctly matched pair. To adhere to physical behaviour it is necessary to ensure this matched pair produces consistent results when viewed (or mapped) from one moving frame of reference to another. Doing so properly incorporates Einstein’s laws of special relativity [21].

Central ab ax e 1 a ay e 2 az e 3 bx e1 b by e2 bz e3 outer a∧b ax e 1 a ay e 2 az e 3 bx e1 b by e2 bz e3 inner a·b ax e 1 a ay e 2 az e 3 bx e1 b by e2 bz e3 Q4. Show that under central multiplication the vector units e1 , e2 and e3 retain the associative property of the outer product. Q5. Using Eq. 8 show for all quaternion units I, J, K that the constraints of Grassmann’s central multiplication apply. Q6. 8 for quaternion units follow directly from Clifford’s construction of quaternion units in Eq.

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