Results 1 to 10 of about 391 (50)
Homotopy Actions, Cyclic Maps and their Duals [PDF]
, 2005 An action of A on X is a map F: AxX to X such that F|_X = id: X to X. The restriction F|_A: A to X of an action is called a cyclic map. Special cases of these notions include group actions and the Gottlieb groups of a space, each of which has been ...
Arkowitz, Martin, Lupton, Gregory
core +4 more sources
The ghost length and duality on the chain and cochain type levels [PDF]
, 2016 We establish equalities between cochain and chain type levels of maps by making use of exact functors which connect appropriate derived and coderived categories.
Kuribayashi, Katsuhiko
core +3 more sources
Higher-dimensional Algebra and Topological Quantum Field Theory
, 1995 The study of topological quantum field theories increasingly relies upon concepts from higher-dimensional algebra such as n-categories and n-vector spaces.
Breen L. +6 more
core +4 more sources
A skew-duoidal Eckmann-Hilton argument and quantum categories
, 2013 A general result relating skew monoidal structures and monads is proved. This is applied to quantum categories and bialgebroids. Ordinary categories are monads in the bicategory whose morphisms are spans between sets.
Lack, Stephen, Street, Ross
core +1 more source
Three themes in the work of Charles Ehresmann: Local-to-global; Groupoids; Higher dimensions [PDF]
, 2006 This paper illustrates the themes of the title in terms of: van Kampen type theorems for the fundamental groupoid; holonomy and monodromy groupoids; and higher homotopy groupoids.
Brown, Ronald
core +6 more sources
A Prehistory of n-Categorical Physics
, 2008 This paper traces the growing role of categories and n-categories in physics, starting with groups and their role in relativity, and leading up to more sophisticated concepts which manifest themselves in Feynman diagrams, spin networks, string theory ...
Baez, John C., Lauda, Aaron
core +2 more sources
When coproducts are biproducts
, 2016 Among right-closed monoidal categories with finite coproducts, we characterise those with finite biproducts as being precisely those in which the initial object and the coproduct of the unit with itself admit right duals.
Garner, Richard, Schäppi, Daniel
core +1 more source
, 2018 Am 25. November 2008 verstarb Beno Eckmann in seinem 92. Lebensjahr.
Knus, Max-Albert +2 more
core
Towards an M5-Brane Model I: A 6d Superconformal Field Theory
, 2018 We present an action for a six-dimensional superconformal field theory containing a non-abelian tensor multiplet. All of the ingredients of this action have been available in the literature.
Saemann, Christian, Schmidt, Lennart
core +1 more source
A spectral sequence for the Hochschild cohomology of a coconnective dga
, 2012 A spectral sequence for the computation of the Hochschild cohomology of a coconnective dga over a field is presented. This spectral sequence has a similar flavour to the spectral sequence constructed by Cohen, Jones and Yan for the computation of the ...
Shamir, Shoham
core +1 more source