Say a student X is a visiting research student under Prof Y, where Y is not the full-time supervisor of X. Student X will be working with Y for 3-months under an international research exchange program. X. Student X facilitates the funding, bringing expertise in a field unknown to Y, and Y has the expertise that is entirely new to X. The idea is to use them both in an application. X proposed the original idea to Y.
My questions are: (1) What is expected of X in everyday research? Is X supposed to learn what is known to Y and then bring together the ideas him/herself alone with occasional "I can't understand this part" questions? (2) What can X expect out of a collaboration? What is reasonable to ask Y? e.g. is it reasonable for X to ask Y that s/he will not learn the field of Y? (3) Can X expect some PostDocs in the Y's group to join the ranks and get along with the project? There is a paper possible if everything goes well.