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rename "Mults" class to "Rel"; rename variables where appropriate. now all instances of "mult" refer to a multiplicity, not a relation.

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David Allemang
2019-12-30 18:31:50 -05:00
parent 18d6e24518
commit 0c94d48235
3 changed files with 63 additions and 52 deletions
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19
include/groups.h
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@@ -4,21 +4,24 @@
#include <vector>
namespace tc {
struct Mult {
struct Rel {
std::array<int, 2> gens;
int mult;
};
/**
* A presentation of a coxeter group. Contains a number of generators and some relations of the form (ab)^n = e
*/
struct Group {
int ngens;
std::vector<std::vector<int>> _mults;
const int ngens;
std::vector<std::vector<int>> _mults; // lookup table for multiplicities
std::string name;
explicit Group(int ngens, const std::vector<Mult> &rels = {}, std::string name = "G");
explicit Group(int ngens, const std::vector<Rel> &rels = {}, std::string name = "G");
void setmult(Mult m);
void setmult(Rel rel);
[[nodiscard]] std::vector<Mult> get_mults() const;
[[nodiscard]] std::vector<Rel> get_rels() const;
[[nodiscard]] Group product(const Group &other) const;
@@ -29,6 +32,10 @@ namespace tc {
Group operator^(const Group &g, const int &p);
/**
* Construct a group from a (simplified) Schlafli Symbol of the form [a, b, ..., c]
* @param mults: The sequence of multiplicites between adjacent generators.
*/
Group schlafli(const std::vector<int> &mults);
namespace group {