In this article, a decoupled and linearized compact difference scheme is investigated to solve the coupled Schrodinger- Boussinesq equations numerically. We establish the convergence rates for the error at the order of O(t 2 + h4) in the l2- norm with the time step t and mesh size h. The linear scheme is proved to conserve the total energy which is defined as a recursion relationship. Due to the difficulty in obtaining the priori estimate from the discrete energy, we utilize cut- off function technique to prove the convergence. The numerical results are reported to verify the theoretical analysis, and the numerical comparison between our scheme with previous methods are conducted to show the efficiency of our scheme.
机构:
Xiamen Univ, Sch Math Sci, Xiamen 361005, Peoples R China
Xiamen Univ, Fujian Prov Key Lab Math Modeling & High Performan, Xiamen 361005, Peoples R ChinaXiamen Univ, Sch Math Sci, Xiamen 361005, Peoples R China
机构:
Jiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
Hu, Xiuling
Wang, Shanshan
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Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
Wang, Shanshan
Zhang, Luming
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Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing, Jiangsu, Peoples R ChinaJiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R China
机构:
Changshu Inst Technol, Sch Math & Stat, Changshu, Jiangsu, Peoples R ChinaChangshu Inst Technol, Sch Math & Stat, Changshu, Jiangsu, Peoples R China
Liao, Feng
Zhang, Luming
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Nanjing Univ Aeronaut & Astronaut, Coll Sci, Nanjing, Jiangsu, Peoples R ChinaChangshu Inst Technol, Sch Math & Stat, Changshu, Jiangsu, Peoples R China
Zhang, Luming
Hu, Xiuling
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Jiangsu Normal Univ, Sch Math & Stat, Xuzhou 221116, Jiangsu, Peoples R ChinaChangshu Inst Technol, Sch Math & Stat, Changshu, Jiangsu, Peoples R China
机构:
Sichuan Normal Univ, Coll Math & Software Sci, Chengdu 610066, Peoples R China
Sichuan Finance & Econ Vocat Coll, Dept Basic Courses, Chengdu 610101, Peoples R ChinaSichuan Normal Univ, Coll Math & Software Sci, Chengdu 610066, Peoples R China