In category theory and related fields of mathematics, an envelope is a construction that generalizes the operations of "exterior completion", like completion...

Karoubi envelope in nlab Avery, Tom; Leinster, Tom (2021), "Isbell conjugacy and the reflexive completion" (PDF), Theory and Applications of Categories, 36:...

objects, respectively) Envelope (category theory) Viral envelope, the membranal covering surrounding the capsid of a virus Cell envelope of a bacterium, consisting...

In mathematics, a morphism is a concept of category theory that generalizes structure-preserving maps such as homomorphism between algebraic structures...

locally convex space. A dual construction is called envelope. Suppose K {\displaystyle K} is a category, X {\displaystyle X} an object in K {\displaystyle...

an auxiliary category. Taking the Karoubi envelope of a preadditive category gives a pseudo-abelian category, hence for additive categories, the construction...

In mathematics, specifically in category theory, a pseudo-abelian category is a category that is preadditive and is such that every idempotent has a kernel...

a glossary of properties and concepts in category theory in mathematics. (see also Outline of category theory.) Notes on foundations: In many expositions...

In category theory, Met is a category that has metric spaces as its objects and metric maps (continuous functions between metric spaces that do not increase...

The nuclear envelope, also known as the nuclear membrane, is made up of two lipid bilayer membranes that in eukaryotic cells surround the nucleus, which...

cogenerators are objects which envelope other objects as an approximation. More precisely: A generator of a category with a zero object is an object...

Projective covers are the dual of injective envelopes. Let C {\displaystyle {\mathcal {C}}} be a category and X an object in C {\displaystyle {\mathcal...

A circumstellar envelope (CSE) is a part of a star that has a roughly spherical shape and is not gravitationally bound to the star core. Usually circumstellar...

balloon is a lighter-than-air aircraft consisting of a bag, called an envelope, which contains heated air. Suspended beneath is a gondola or wicker basket...

nebular theory are echoed in modern theories of planetary formation, but most elements have been superseded. According to the nebular theory, stars form...

TOTREP Two envelopes problem "Decision theory Definition and meaning". Dictionary.com. Retrieved 2022-04-02. Hansson, Sven Ove. "Decision theory: A brief...

physical characteristics that govern timbre include frequency spectrum and envelope. Musicians can change timbre by modifying their singing/playing techniques...

Music theory is the study of theoretical frameworks for understanding the practices and possibilities of music. The Oxford Companion to Music describes...

Neiwert, David (January 17, 2018). "Conspiracy meta-theory 'The Storm' pushes the 'alternative' envelope yet again". Southern Poverty Law Center. Archived...

mathematics, particularly in algebra, the injective hull (or injective envelope) of a module is both the smallest injective module containing it and the...

In mathematics, especially representation theory, the stable module category is a category in which projectives are "factored out." Let R be a ring. For...

In category theory, a branch of mathematics, a Krull–Schmidt category is a generalization of categories in which the Krull–Schmidt theorem holds. They...

which bidders place their bids in sealed envelopes and simultaneously hand them to the auctioneer. The envelopes are opened and the individual with the...

lost or altered in their type or quantity, they were placed into clay envelopes shaped like hollow balls known as bullae (a bulla). Ownership and witness...

This divisible group D is the injective envelope of A, and this concept is the injective hull in the category of abelian groups. An abelian group is said...

and their properties: Crest factor Envelope Frequency Wavelength Knopp, Konrad; Bagemihl, Frederick (1996). Theory of Functions Parts I and II. Dover...

A double envelope house is a passive solar house design which collects solar energy in a solarium and passively allows the warm air to circulate around...

one for each partner. One envelope contains $100,000 and the other contains nothing. The partner with the $100,000 envelope may choose whether to share...

Expectancy violations theory (EVT) is a theory of communication that analyzes how individuals respond to unanticipated violations of social norms and expectations...

algebraic K-theory, and contains the category of Chow motives in a suitable sense (and other properties). The existence of such a category was conjectured...