Hypertime is a concept from the DC Comics universe, particularly associated with the multiverse and time travel narratives. Introduced in the 1990s, Hypertime refers to a continuum that allows for various timelines and realities to coexist and interact in a more complex way than traditional time travel concepts. In Hypertime, events can branch off into multiple possible futures and pasts, enabling characters to experience alternate versions of events or realities.

The Implicit Function Theorem is a fundamental result in calculus and differential topology that provides conditions under which a relation defines a function implicitly.

A hypercomplex manifold is a specific type of manifold that is equipped with a structure allowing it to have a rich geometric and algebraic framework. More precisely, a hypercomplex manifold is a differentiable manifold \( M \) endowed with an almost complex structure associated with three complex structures \( I, J, K \) that satisfy certain quaternionic relations.

The hypergeometric identity refers to various identities involving hypergeometric series, which are a class of power series defined by the generalized hypergeometric function.