Involution may refer to:
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Involute
In mathematics, an involute (also known as an evolvent) is a particular type of curve that is dependent on another shape or curve. An involute of a curve is the locus of a point on a piece of taut string as the string is either unwrapped from or ...
, a construction in the differential geometry of curves
* ''
Agricultural Involution: The Processes of Ecological Change in Indonesia'', a 1963 study of intensification of production through increased labour inputs
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Involution (mathematics)
In mathematics, an involution, involutory function, or self-inverse function is a function that is its own inverse,
:
for all in the domain of . Equivalently, applying twice produces the original value.
General properties
Any involution i ...
, a function that is its own inverse
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Involution (medicine) Involution is the shrinking or return of an organ to a former size. At a cellular level, involution is characterized by the process of proteolysis of the basement membrane (basal lamina), leading to epithelial regression and apoptosis, with accompa ...
, the shrinking of an organ (such as the uterus after pregnancy)
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Involution (esoterism)
The term involution has various meanings. In some instances it refers to a process prior to evolution which gives rise to the cosmos, in others it is an aspect of evolution, and in still others it is a process that follows the completion of evoluti ...
, several notions of a counterpart to evolution
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Involution (Meher Baba)
''God Speaks: The Theme of Creation and Its Purpose'' is the principal book by Meher Baba, and the most significant religious text used by his followers. It covers Meher Baba's view of the process of creation and its purpose and has been in print ...
, the inner path of the human soul to the self
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Involution algebra, a *-algebra: an algebra equipped with an involution
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''Involution'' (album), a 1998 album by multi-instrumentalist Michael Marcus, with the Jaki Byard trio
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''Involution'' (film), a 2018 Russian sci-fi drama film
{{disambiguation