@article{spatialadapterstructuredspatialdecomposi, title = {Spatial Adapter: Structured Spatial Decomposition and Closed-Form Covariance for Frozen Predictors}, author = {Wen-Ting Wang and Wei-Ying Wu and Hao-Yun Huang and Xuan-Chun Wang}, year = {2026}, eprint = {2605.11394}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2605.11394}, }