- me. It was
obtained by a
democratic process in my
course of 1976–77. An
orbifold is
something with many folds; unfortunately, the word "manifold" already...
-
wallpaper group; it is
called p4m in the IUCr
notation and *442 in the
orbifold notation.
Example C has a
different wallpaper group,
called p4g or 4*2...
- In geometry,
orbifold notation (or
orbifold signature) is a system,
invented by the
mathematician William Thurston and
promoted by John Conway, for representing...
- S 1 {\displaystyle S^{1}} -bundle (circle bundle) over a 2-dimensional
orbifold. Many 3-manifolds are
Seifert fiber spaces, and they
account for all compact...
-
notion of
orbifold,
proposed by
Augusto Sagnotti in 1987. The
novelty is that in the case of
string theory the non-trivial element(s) of the
orbifold group...
-
groupoids as charts. The
notion often appears in
particular as an
inertia orbifold. Let U = ( U 1 ⇉ U 0 ) {\displaystyle U=(U_{1}\rightrightarrows U_{0})}...
- In
differential geometry, the
Euler characteristic of an
orbifold, or
orbifold Euler characteristic, is a
generalization of the
topological Euler characteristic...
-
point groups,
International Tables for
Crystallography space group number,
orbifold, type, and
space groups are
listed in the
table below.
There are a total...
-
arrangement (motif)).
Orbifold notation (2D)
Fibrifold notation (3D) As the name suggests, the
orbifold notation describes the
orbifold,
given by the quotient...
-
symmetry group in IUC
notation as p4m,
Coxeter notation as [4,4], and
orbifold notation as *442. Two
orientations of an
image of the
lattice are by far...
