// libsemigroups - C++ library for semigroups and monoids
// Copyright (C) 2020 Finn Smith
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/ >.
//
#include <cstddef> // for size_t
#include "catch.hpp" // for REQUIRE
#include "test-main.hpp" // FOR LIBSEMIGROUPS_TEST_CASE
#include "libsemigroups/bmat8.hpp" // for BMat8
#include "libsemigroups/fastest-bmat.hpp" // for FastestBMat
#include "libsemigroups/froidure-pin.hpp" // for FroidurePin
#include "libsemigroups/konieczny.hpp" // for Konieczny
namespace libsemigroups {
constexpr bool REPORT = false ;
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"009" ,
"regular elements and idempotents" ,
"[quick][no-valgrind][bmat8]" ) {
#ifdef LIBSEMIGROUPS_HPCOMBI_ENABLED
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#pragma GCC diagnostic ignored "-Winline"
#endif
using BMat = FastestBMat<4>;
auto rg = ReportGuard(REPORT);
const std::vector<BMat> gens
= {BMat({{0, 1, 0, 0}, {1, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat({{0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}}),
BMat({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 1}}),
BMat({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 0}})};
Konieczny<BMat> KS(gens);
FroidurePin<BMat> S(gens);
S.run();
REQUIRE(KS.size() == 63904);
REQUIRE(S.size() == 63904);
REQUIRE(KS.number_of_generators() == 4);
REQUIRE(KS.number_of_D_classes() == 50);
REQUIRE(KS.number_of_L_classes() == 1256);
REQUIRE(KS.number_of_R_classes() == 1256);
REQUIRE(KS.number_of_regular_D_classes() == 25);
REQUIRE(KS.number_of_regular_L_classes() == 618);
REQUIRE(KS.number_of_regular_R_classes() == 618);
REQUIRE(KS.number_of_idempotents() == 2360);
REQUIRE(KS.number_of_H_classes() == 48092);
REQUIRE(std::vector<BMat>(KS.cbegin_generators(), KS.cend_generators())
== gens);
size_t count = 0;
for (auto it = S.cbegin(); it < S.cend(); ++it) {
if (KS.is_regular_element(*it)) {
count++;
}
}
REQUIRE(count == 40408);
REQUIRE(KS.number_of_regular_elements() == 40408);
#ifdef LIBSEMIGROUPS_HPCOMBI_ENABLED
#pragma GCC diagnostic pop
#endif
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"010" ,
"regular D-class 01" ,
"[quick][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> gens = {BMat8({{0, 1, 0}, {0, 0, 1}, {1, 0, 0}}),
BMat8({{0, 1, 0}, {1, 0, 0}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 0}, {0, 0, 1}}),
BMat8({{1, 1, 0}, {0, 1, 1}, {1, 0, 1}})};
Konieczny<BMat8> KS(gens);
REQUIRE(KS.size() == 247);
BMat8 x({{1, 0, 0}, {1, 1, 0}, {1, 0, 1}});
Konieczny<BMat8>::DClass& D = KS.D_class_of_element(x);
REQUIRE(D.number_of_L_classes() == 3);
REQUIRE(D.number_of_R_classes() == 3);
REQUIRE(D.size() == 18);
REQUIRE(D.is_regular_D_class());
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"011" ,
"regular D-class 02" ,
"[quick][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> gens
= {BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {1, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 0, 1, 1}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 1, 0, 1}}),
BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 0}})};
Konieczny<BMat8> KS(gens);
KS.run();
BMat8 idem(BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}));
Konieczny<BMat8>::DClass& D = KS.D_class_of_element(idem);
REQUIRE(D.size() == 24);
REQUIRE(D.is_regular_D_class());
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"012" ,
"regular D-class 04: contains" ,
"[quick][no-valgrind][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> gens
= {BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {1, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 0, 1, 1}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 1, 0, 1}}),
BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 0}})};
Konieczny<BMat8> KS(gens);
FroidurePin<BMat8> S(gens);
KS.run();
S.run();
BMat8 idem(BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}));
Konieczny<BMat8>::DClass& D = KS.D_class_of_element(idem);
// test that the top D-class contains only permutation matrices
for (auto it = S.cbegin(); it < S.cend(); it++) {
REQUIRE(D.contains(*it) == (((*it) * (*it).transpose()) == gens[0]));
}
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"013" ,
"non-regular D-classes 01" ,
"[quick][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> gens = {BMat8({{0, 1, 0}, {0, 0, 1}, {1, 0, 0}}),
BMat8({{0, 1, 0}, {1, 0, 0}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 0}, {0, 0, 1}}),
BMat8({{1, 1, 0}, {0, 1, 1}, {1, 0, 1}})};
const std::vector<BMat8> idems = {BMat8({{1, 0, 0}, {0, 1, 0}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 0}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 1}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 0}, {1, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 0}, {1, 1, 1}}),
BMat8({{1, 1, 0}, {1, 1, 0}, {0, 0, 1}}),
BMat8({{1, 0, 0}, {1, 1, 1}, {1, 1, 1}}),
BMat8({{1, 1, 0}, {1, 1, 0}, {1, 1, 1}}),
BMat8({{1, 1, 1}, {1, 1, 1}, {1, 1, 1}})};
Konieczny<BMat8> KS(gens);
KS.run();
REQUIRE(size_t(KS.cend_regular_D_classes() - KS.cbegin_regular_D_classes())
== idems.size());
size_t count = 0;
for (BMat8 id : idems) {
Konieczny<BMat8>::DClass& D = KS.D_class_of_element(id);
count += D.size();
REQUIRE(D.is_regular_D_class());
}
REQUIRE(count == 142);
std::vector<BMat8> non_reg_reps
= {BMat8({{0, 0, 1}, {1, 0, 1}, {1, 1, 0}}),
BMat8({{0, 0, 1}, {1, 1, 1}, {1, 1, 0}}),
BMat8({{0, 1, 1}, {1, 0, 1}, {1, 1, 1}}),
BMat8({{0, 1, 1}, {1, 1, 0}, {1, 0, 1}}),
BMat8({{1, 0, 1}, {1, 0, 1}, {1, 1, 0}}),
BMat8({{1, 1, 0}, {1, 1, 1}, {1, 1, 1}})};
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[0]);
REQUIRE(X.size() == 36);
REQUIRE(X.size_H_class() == 1);
REQUIRE(X.number_of_L_classes() == 6);
REQUIRE(X.number_of_R_classes() == 6);
}
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[1]);
REQUIRE(X.size() == 18);
REQUIRE(X.size_H_class() == 1);
REQUIRE(X.number_of_L_classes() == 3);
REQUIRE(X.number_of_R_classes() == 6);
}
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[2]);
REQUIRE(X.size() == 18);
REQUIRE(X.size_H_class() == 2);
REQUIRE(X.number_of_L_classes() == 3);
REQUIRE(X.number_of_R_classes() == 3);
}
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[3]);
REQUIRE(X.size() == 6);
REQUIRE(X.size_H_class() == 6);
REQUIRE(X.number_of_L_classes() == 1);
REQUIRE(X.number_of_R_classes() == 1);
}
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[4]);
REQUIRE(X.size() == 18);
REQUIRE(X.size_H_class() == 1);
REQUIRE(X.number_of_L_classes() == 6);
REQUIRE(X.number_of_R_classes() == 3);
}
{
Konieczny<BMat8>::DClass& X = KS.D_class_of_element(non_reg_reps[5]);
REQUIRE(X.size() == 9);
REQUIRE(X.size_H_class() == 1);
REQUIRE(X.number_of_L_classes() == 3);
REQUIRE(X.number_of_R_classes() == 3);
}
for (BMat8 x : non_reg_reps) {
Konieczny<BMat8>::DClass& N = KS.D_class_of_element(x);
count += N.size();
REQUIRE(!N.is_regular_D_class());
}
REQUIRE(count == 247);
REQUIRE(KS.size() == 247);
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"014" ,
"RegularDClass" ,
"[quick][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> gens
= {BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {1, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 0, 1, 1}}),
BMat8({{0, 1, 0, 1}, {1, 0, 1, 0}, {1, 0, 1, 0}, {0, 1, 0, 1}}),
BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}})};
Konieczny<BMat8> KS(gens);
KS.run();
BMat8 x = BMat8({{0, 1, 0}, {1, 0, 0}, {0, 0, 0}});
Konieczny<BMat8>::DClass& D = KS.D_class_of_element(x);
REQUIRE(D.size() == 90);
REQUIRE(D.number_of_L_classes() == 5);
REQUIRE(D.number_of_R_classes() == 9);
REQUIRE(D.is_regular_D_class());
}
LIBSEMIGROUPS_TEST_CASE("Konieczny" ,
"015" ,
"full bmat monoid 4" ,
"[quick][no-valgrind][bmat8]" ) {
auto rg = ReportGuard(REPORT);
const std::vector<BMat8> bmat4_gens
= {BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{1, 1, 1, 0}, {1, 0, 0, 1}, {0, 1, 0, 1}, {0, 0, 1, 1}}),
BMat8({{1, 1, 0, 0}, {1, 0, 1, 0}, {0, 1, 1, 0}, {0, 0, 0, 1}}),
BMat8({{1, 1, 0, 0}, {1, 0, 1, 0}, {0, 1, 0, 1}, {0, 0, 1, 1}}),
BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 1}}),
BMat8({{1, 0, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 0}}),
BMat8({{0, 1, 0, 0}, {1, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}),
BMat8({{0, 1, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}})};
Konieczny<BMat8> S(bmat4_gens);
REQUIRE(S.size() == 65536);
}
} // namespace libsemigroups
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