-
whose objects are
groupoids and
whose morphisms are
groupoid morphisms is
called the
groupoid category, or the
category of
groupoids, and is
denoted by...
-
globular groupoid giving a wide
class of
examples of
strict globular groupoids. Moreover,
because strict groupoids embed inside weak
groupoids, they can...
- https://ncatlab.org/nlab/show/action+
groupoid https://mathoverflow.net/questions/130950/
groupoids-vs-action-
groupoids https://www.math.sci.hokudai.ac...
-
contravariant functor from C to the
category of
groupoids. This way, each
groupoid object determines a
prestack in
groupoids. This
prestack is not a
stack but it...
-
groupoids are the
global counterparts of Lie algebroids. Lie
groupoids were
introduced by
Charles Ehresmann under the name
differentiable groupoids....
- 11, ISBN 978-3-0348-0405-9. Evseev, A. E. (1988), "A
survey of
partial groupoids", in Silver, Ben (ed.),
Nineteen Papers on
Algebraic Semigroups, American...
-
prominent author on the
subject of
groupoids in topology: http://
groupoids.org.uk/
fundamental groupoid at the nLab
fundamental infinity-
groupoid at the nLab...
- Weinstein, Alan (eds.).
Symplectic Geometry,
Groupoids, and
Integrable Systems [Lie
Groupoids and
Symplectic Groupoids].
Mathematical Sciences Research Institute...
- Free
central groupoids are infinite, and have no
idempotent elements.
Finite central groupoids,
including the
natural central groupoids over
finite sets...
-
proper groupoids are
automatically compact, the
discreteness condition implies that the
isotropies must be
actually finite groups.
Orbifold groupoids play...
