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IEEE Transactions on Geoscience and Remote Sensing, 1984
The development of both direct and inverse wave propagation theories at the level of the reduced scalar Helmholtz equation is addressed. The principal constructive tool is the factorization analysis of the Helmholtz equation which derives from the physically suggestive picture of decoupled forward and backward wave propagation appropriate for ...
Louis Fishman, John J. Mccoy
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The development of both direct and inverse wave propagation theories at the level of the reduced scalar Helmholtz equation is addressed. The principal constructive tool is the factorization analysis of the Helmholtz equation which derives from the physically suggestive picture of decoupled forward and backward wave propagation appropriate for ...
Louis Fishman, John J. Mccoy
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2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016
A new HSS (Hierarchically Semiseparable) direct matrix solution algorithm, including both factorization and inversion, is developed for solving the volume integral equation (VIE) for large-scale electrodynamic analysis. This direct solution algorithm is exact in the sense that the matrix factorization, inversion, and solution do not involve any ...
Miaomiao Ma, Dan Jiao
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A new HSS (Hierarchically Semiseparable) direct matrix solution algorithm, including both factorization and inversion, is developed for solving the volume integral equation (VIE) for large-scale electrodynamic analysis. This direct solution algorithm is exact in the sense that the matrix factorization, inversion, and solution do not involve any ...
Miaomiao Ma, Dan Jiao
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A quality factor inversion method of Markov chain Monte Carlo integrating well-log and seismic data
GeophysicsABSTRACT The Q-value quantitatively characterized the extent of seismic wave absorption in rocks, aided in the compensation of seismic data, and supported the detection of oil and gas properties. Conventional Q-value extraction methods are typically suitable for vertical seismic profiling (VSP).
Bo Li +4 more
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1989
The analysis and fast, accurate numerical computation of the wave equations of classical physics are often quite difficult for rapidly changing, multidimensional environments extending over many wavelengths. This is particularly so for environments characterized by a refractive index field with a compact region of arbitrary (n-dimensional) variability ...
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The analysis and fast, accurate numerical computation of the wave equations of classical physics are often quite difficult for rapidly changing, multidimensional environments extending over many wavelengths. This is particularly so for environments characterized by a refractive index field with a compact region of arbitrary (n-dimensional) variability ...
openaire +1 more source
Finding Integrating Factor or Inverse by Invariant Algebraic Curves
Pure Mathematics, 2020openaire +1 more source
A Proposal Method for Identifying Integrating Systems with Inverse Response and Dead Time
2023Oscar Camacho, Hugo Leiva
exaly
Non-formally integrable centers admitting an algebraic inverse integrating factor
Discrete and Continuous Dynamical Systems, 2018Antonio Algaba +2 more
exaly