1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#pragma once
#include "Algorithm.hh"
#include "YoungTab.hh"
namespace cadabra {
class young_project : public Algorithm {
public:
young_project(const Kernel&, Ex&);
young_project(const Kernel&, Ex&, const std::vector<int>& shape, const std::vector<int>& indices);
virtual bool can_apply(iterator);
virtual result_t apply(iterator&);
// Boxes represent tensor slots, the values in them
// give the location in the tensor.
typedef yngtab::filled_tableau<unsigned int> pos_tab_t;
typedef yngtab::filled_tableau<iterator> name_tab_t;
pos_tab_t tab;
name_tab_t nametab;
combin::symmetriser<unsigned int> sym;
// Implicit antisymmetry; used by tableaux.cc only so far. These
// store index locations, so these are "values" from the
// combinatorics.hh point of view.
combin::combinations<unsigned int>::permuted_sets_t asym_ranges;
bool remove_traces;
private:
iterator nth_index_node(iterator, unsigned int);
};
}
|
