Not to be confused with group presentation. Representation theory is a branch of mathematics that studies abstract algebraic structures by representing their elements as linear transformations of vector spaces, and studies modules over these abstract algebraic structures.
The signature effect of HIV infection, and the cause of AIDS, is disruption of the T-lymphocyte branch of the immune system and in particular the destruction of CD4+ T-helper cells.
About HIV/AIDS. Language: HIV is a virus spread through certain body fluids that attacks the bodyâs immune system, specifically the CD4 cells, often called T cells. Over time, HIV can destroy so many of these cells that the body canât fight off infections and disease. These special cells help the immune system fight off infections.