triqs.mesh.mesh_product.MeshProduct

class triqs.mesh.mesh_product.MeshProduct(*mlist)[source]

Bases: object

Cartesian product of TRIQS meshes.

A MeshProduct of k factor meshes describes the set of k-tuples of mesh points, one factor per mesh. It is the canonical mesh of multi-variable Green’s functions in TRIQS (see triqs.gfs.Gf); iteration yields composite mesh points \((p_1, \ldots, p_k)\) via itertools.product().

Parameters:

*mlistmesh objects: The factor meshes, passed as separate positional arguments (variadic). Each must satisfy the TRIQS mesh interface (iterable over MeshPoint, supports copy, copy_from and to_data_index).

Attributes

`components`	Tuple of factor meshes that make up the product.
`rank`	Number of factor meshes (alias for `len(self.components)`).

Methods

`copy`()	Return a deep copy of this product mesh.
`copy_from`(another)	Deep-copy the contents of `another` into `self` factor by factor.
`size_of_components`()	Size of each factor mesh.
`to_data_index`(index)	Convert a tuple of per-factor indices to a tuple of data indices.