A subcategory of TOP

Refining Thick Subcategory Theorems

We use a K-theory recipe of Thomason to obtain classi cations of triangulated subcategories via re ning some standard thick subcategory theorems. We apply this recipe to the full subcategories of nite objects in the derived categories of rings and the stable homotopy category of spectra. This gives, in the derived categories, a complete classi cation of the triangulated subcategories of perfect...

Infantophilia--a new subcategory of pedophilia?: a preliminary study.

The Diagnostic and Statistical Manual of Mental Disorders has included three subgroups of pedophilic disorder based on the gender of the victim, the exclusiveness of the subject's preference for children, and whether the behavior is limited to incest. This study uses the pedophile's preference for age of victim as a means of delineating two distinct subgroups. The first group of so-called 'infa...

The envelope of a subcategory in topology and group theory

A collection of results are presented which are loosely centered around the notion of reflective subcategory. For example, it is shown that reflective subcategories are orthogonality classes, that the morphisms orthogonal to a reflective subcategory are precisely the morphisms inverted under the reflector, and that each subcategory has a largest “envelope” in the ambient category in which it is...

CAM : A Spreading Activation Network Model of Subcategory Positioning

EXPONENTIAL MAP OF A CLASS OF TOP SPACES