The following Unicode-related documents record the purpose and process of defining specific characters in the Arabic Mathematical Alphabetic Symbols block:
Moore, Lisa (2010-05-19), "Consensus 123-C11, 123-C27", UTC #123 / L2 #220 Minutes, Change the general category of the Arabic math alphabetics to "Lo" U+1EE00 through U+1EEBB and give them a font decomposition, and also assign them the "other math" property.