1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 2 /* */ 3 /* This file is part of the program and library */ 4 /* SCIP --- Solving Constraint Integer Programs */ 5 /* */ 6 /* Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB) */ 7 /* */ 8 /* Licensed under the Apache License, Version 2.0 (the "License"); */ 9 /* you may not use this file except in compliance with the License. */ 10 /* You may obtain a copy of the License at */ 11 /* */ 12 /* http://www.apache.org/licenses/LICENSE-2.0 */ 13 /* */ 14 /* Unless required by applicable law or agreed to in writing, software */ 15 /* distributed under the License is distributed on an "AS IS" BASIS, */ 16 /* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ 17 /* See the License for the specific language governing permissions and */ 18 /* limitations under the License. */ 19 /* */ 20 /* You should have received a copy of the Apache-2.0 license */ 21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */ 22 /* */ 23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ 24 25 /**@file sepa_disjunctive.h 26 * @ingroup SEPARATORS 27 * @brief disjunctive cut separator 28 * @author Tobias Fischer 29 * @author Marc Pfetsch 30 * 31 * We separate disjunctive cuts for two term disjunctions of the form \f$x_1 = 0 \vee x_2 = 0\f$. They can be generated 32 * directly from the simplex tableau. For further information, we refer to@n 33 * "A complementarity-based partitioning and disjunctive cut algorithm for mathematical programming problems with 34 * equilibrium constraints"@n 35 * Júdice, J.J., Sherali, H.D., Ribeiro, I.M., Faustino, A.M., Journal of Global Optimization 36(1), 89–114 (2006) 36 * 37 * Cut coefficients belonging to integer variables can be strengthened by the 'monoidal cut strengthening' procedure, see@n 38 * "Strengthening cuts for mixed integer programs"@n 39 * Egon Balas, Robert G. Jeroslow, European Journal of Operational Research, Volume 4, Issue 4, 1980, Pages 224-234 40 */ 41 42 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/ 43 44 #ifndef __SCIP_SEPA_DISJUNCTIVE_H__ 45 #define __SCIP_SEPA_DISJUNCTIVE_H__ 46 47 48 #include "scip/def.h" 49 #include "scip/type_retcode.h" 50 #include "scip/type_scip.h" 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 /** creates the disjunctive cut separator and includes it in SCIP 57 * 58 * @ingroup SeparatorIncludes 59 */ 60 SCIP_EXPORT 61 SCIP_RETCODE SCIPincludeSepaDisjunctive( 62 SCIP* scip /**< SCIP data structure */ 63 ); 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif 70