Open Access
Table 1.
List of the main notations used in the paper.
| Notation | Definition |
|---|---|
| Observation | |
| d | Imaging data |
| Cd | Data covariance matrix |
| Model components | |
| m | Image model |
| B | Blurring operator |
| Lψ | Lensing operator |
| ψ, s, ℓ | Lens potential, source light, lens light |
| Model parametrization | |
| η | Vector containing all model parameters |
| ηψ, ηs, ηℓ | Parameters for analytical profiles  ,  ,  |
| ψpix | Pixel values of the pixelated potential |
| λψ, bl, λψ, bl | Regularization strengths for ψpix |
| Wψ, bl, Wψ, bl | Regularization weights for ψpix |
| Optimization & Inference | |
| L, ∇L | Loss function and its gradient |
| ηMAP | MAP solution |
| Cη | Parameter covariance matrix |
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