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|Type:||Artigo de periódico|
|Title:||Dualities Involving Reflectors And Reflection-time Surfaces|
|Abstract:||Fundamental geometrical relationships between the 3-D reflection-time surface on the one hand and the 3-D subsurface reflector on the other hand can be expressed in the form of certain duality theorems. Besides providing a simple proof of these facts, the first duality theorem also states that the changes of the isochrone with varying time and of the diffraction-time surface with varying depth are reciprocal to each other. The second duality theorem expresses a relationship between the curvatures of the reflection and diffraction time surfaces and of the reflector and isochrone. The duality theorems are of fundamental importance in migration and emigration as well as in seismic modeling, reflection imaging, and traveltime inversion in general. -from Authors|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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