Final answer:
The literary works explore the theme of identity and societal exclusion, with an emphasis on the personal journey to self-understanding and the struggles faced due to societal norms. The common theme between "abuela invents the zero" and "I'm Nobody! Who are you?" is the exploration of individual identity and the feeling of being an outsider or invisible in society.
Step-by-step explanation:
The literary works abuela invents the zero and Emily Dickinson's poem I'm Nobody! Who are you?, along with the perspectives of Antiguan American author Jamaica Kincaid and African American author Ralph Ellison, converge on the theme of identity and the struggle to find a place in society.
These texts explore the individual's journey to self-understanding and the consequences of societal exclusion, exemplified by Ellison's experience of sudden awareness of difference and Kincaid's notion of people being made orphans from their cultural heritage. The philosophical inquiry into 'Who am I?', as inspired by the likes of Simone de Beauvoir, adds a deeper layer to this exploration, by questioning the fundamental nature of self and existence.