●In Crystallography & Architecture:
A
or
of
, often
with a motif.
●In Group theory & Architecture:
A
of Rⁿ which is
to Zⁿ (considered as an
) and
the
Rⁿ.
●In Topology & Architecture:
A
L of a
iven
G whose
G/L has
measure.
●In Algebra & Architecture:
A
in which every
of
has a
and a
infimum.