The $E_2$-term of the Adams spectral sequence for $\mathbf{Y}$ may be described in terms its cohomology $E^\ast \mathbf{Y}$, together with action primary operations \mathbf{E}$ on it, ring spectra such as $\mathbf{E} = \mathbf{H}\mathbb{F}_p$. We show how higher can similarly order truncated $\mathbf{E}$-mapping algebra $\; - \;$ that is truncations function $\operatorname{Fun}(\mathbf{Y}, \mat...

We investigate the spectral complexity and unique spectral characteristics of urban environments using a comprehensive regional field spectral library of more than 4500 individual spectra. Spectral properties of urban surface materials are presented and interpreted, and their separability is systematically analyzed using the Bhattacharyya distance (B-distance) as a quantitative measure of spect...

This paper examines the potential of ASTER data in mapping the geology of an arid area in Africa using spectral analysis techniques. Equipped with a relatively broad spectral range, fine spatial resolution, and a large number of bands, ASTER data are especially attractive to many geological researchers in Africa, due to their open availability and associated minimal costs for academic use. The ...