- In
algebraic geometry, a
prestack F over a
category C
equipped with some
Grothendieck topology is a
category together with a
functor p: F → C satisfying...
- type; i.e., they
simply forget extra data. See also:
fibred category,
prestack. The dual of a
cartesian fibration is
called an op-fibration; in particular...
- X,i=1,...,m} .
There is an
analog of a Ran
space for a scheme: the Ran
prestack of a quasi-projective
scheme X over a
field k,
denoted by Ran ( X ) {\displaystyle...
- the
following are the most important:
anisotropic parameter estimation,
prestack depth anisotropy migration, and
fracture characterization based on anisotropy...
- of
canonical maps or
canonical isomorphisms; for a
typical example, see
prestack. For a
discussion of the
problem of
defining a
canonical map see Kevin...
- doi:1029/2005/B003835. Pisani, P., Reshef, M., Moore, G., 2005,
Targeted 3-D
prestack depth imaging at Legs 190-196 ODP
drill sites (Nankai Trough, ****an), Geophysical...
- pseudofunctor,
which is a category-valued presheaf, is
often also
called a
prestack (a
stack minus effective descent). A
pseudofunctor F from a
category C...
- the
language of stacks, flat
descent is
exactly the
statement that the
prestack of quasi-coherent
sheaves is a
stack with
respect to étale (or fpqc) topology...
-
seismic applications such as
velocity estimation, wavefield-continuation
prestack migration,
multidimensional image estimation, and 4-D (time-lapse) reservoir...
- base
forms a stack. Conversely, a
prestack can be
stackified by
taking the
category of
torsors (over the
prestack). If G {\displaystyle G} is a connected...
