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We combine two recent ideas: cartesian differential categories, and restriction categories. The result is a new structure which axiomatizes the category of smooth maps defined on open subsets of $R^n$ in a way that is completely algebraic. We also give other models for the resulting structure, discuss what it means for a partial map to be additive or linear, and show that differential restriction structure can be lifted through various completion operations.
@article{TAC_2011_25_a20, author = {J.R.B. Cockett and G.S.H. Cruttwell and J. D. Gallagher}, title = {Differential restriction categories}, journal = {Theory and applications of categories}, pages = {537--613}, publisher = {mathdoc}, volume = {25}, year = {2011}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TAC_2011_25_a20/} }
J.R.B. Cockett; G.S.H. Cruttwell; J. D. Gallagher. Differential restriction categories. Theory and applications of categories, Tome 25 (2011), pp. 537-613. http://geodesic.mathdoc.fr/item/TAC_2011_25_a20/