This paper extends the Day Reflection Theorem to skew monoidal categories. We also provide conditions under which a skew monoidal structure can be lifted to the category of Eilenberg-Moore coalgebras for a comonad.
Keywords: skew monoidal category, reflective subcategory, warping, comonad
2010 MSC: 18D10; 18A40, 18D15, 18D20
Theory and Applications of Categories, Vol. 30, 2015, No. 28, pp 985-1000.
Published 2015-07-12.
http://www.tac.mta.ca/tac/volumes/30/28/30-28.pdf
Revised 2016-09-12. Original version at
http://www.tac.mta.ca/tac/volumes/30/28/30-28a.pdf