cokernelbut
The term "cokernelbut" appears to be a misspelling or a non-standard term within mathematics, likely intended to refer to the "cokernel" in abstract algebra or functional analysis. The cokernel is a fundamental concept in category theory and homological algebra, closely related to the kernel.
In the context of a linear map or a homomorphism between two modules, say f: V -> W,
The cokernel can be understood as the dual concept to the kernel. Just as the kernel captures
The cokernel plays a significant role in constructing resolutions and in the study of short exact sequences.