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涉及非线性差分多项式的整函数的周期性
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作者 李效敏 王靖涵 《中国海洋大学学报(自然科学版)》 CAS CSCD 北大核心 2022年第S01期96-101,共6页
本文在超级小于1的条件下利用差分Nevanlinna理论研究了涉及一类非线性差分多项式的整函数的周期性问题,本文的主要结果是2020年吕巍然等人的有关结果的差分版本。
关键词 差分Nevanlinna理论 非线性差分多项式 整函数 周期性
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AUTOMATED DERIVATION OF THE CONSERVATION LAWS FOR NONLINEAR DIFFERENTIAL-DIFFERENCE EQUATIONS
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作者 Jiaofeng ZHU Yinping LIU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2012年第6期1234-1248,共15页
Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient algorithm to construct polynomial form conservation laws for nonlinear differential-difference equations (DDEs) is ... Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient algorithm to construct polynomial form conservation laws for nonlinear differential-difference equations (DDEs) is improved. Furthermore, a Maple package named CLawDDEs, which can entirely automatically derive polynomial form conservation laws of nonlinear DDEs is presented. The effective- ness of CLawDDEs is demonstrated by application to different kinds of examples. 展开更多
关键词 Automated derivation conservation laws differential-difference equations integrability scaling invariance.
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