Qualitative Theory of Dynamical Systems

Qualitative Theory of Dynamical Systems is a mathematics journal on dynamical systems, published by Springer under its Birkhäuser imprint.《Qualitative Theory of Dynamical Systems》是一份聚焦动力系统的数学期刊，由施普林格以其 Birkhäuser 名义出版。

It was founded in 1999 and takes the theory and the applications of dynamical systems as its ground.该刊创办于 1999 年，以动力系统的理论与应用为其阵地。

In the 2025 edition of the journal citation report it holds an impact factor of 3.2, and it stands in the first quartile of mathematics.在 2025 年版期刊引证报告中，该刊的影响因子为 3.2，在数学类目列第一区。

Scope

• The journal takes the qualitative theory of dynamical systems as its subject, and it asks how a system behaves without solving it outright.该刊以动力系统的定性理论为题材，追问系统在不必完全求解时如何表现。

• Ordinary differential equations are the primary focus, and the journal carries work on how the solutions of such an equation are organised.常微分方程是主要焦点，该刊刊载此类方程的解如何被组织的工作。

• Discrete dynamical systems are treated, and the journal admits work on how a map iterates in the long run.离散动力系统得到处理，该刊收载映射在长期迭代下如何演变的工作。

• Continuous systems are named alongside the discrete, and the journal takes work on either.连续系统与离散系统一并被点名，该刊二者兼收。

• Periodic orbits are treated, and the journal carries work on how a cycle exists and how many of them there are.周期轨道得到处理，该刊刊载循环如何存在、又有多少个的工作。

• Bifurcation is part of the remit, and the journal admits work on how a system changes when a parameter is nudged.分岔属于收稿范围，该刊收载参数微动时系统如何改变的工作。

• Stability is named, and the journal takes work on whether a small disturbance dies away or grows.稳定性被点名，该刊收载微小扰动是消逝还是增长方面的工作。

• Chaos and complex behaviour are treated, and the journal carries work on why a deterministic rule can look unpredictable.混沌与复杂行为得到处理，该刊刊载确定性规则为何看似不可预测的工作。

• Integrability is named, and the journal admits work on when a system can be solved in closed form.可积性被点名，该刊收载系统何时可以闭式求解的工作。

• Vector fields are treated, and the journal takes work on the geometry of a flow on a plane or a sphere.向量场得到处理，该刊收载平面或球面上流的几何的工作。

• Analytic and algebraic methods are part of the remit, and the journal carries work that borrows a tool from one field to answer a question in another.解析与代数方法属于收稿范围，该刊刊载借一领域的工具回答另一领域问题的工作。

• Numeric results are not the aim, and the journal accepts them only where they bear out something already proved.数值结果并非其旨，该刊仅在能满足已证之事时收载之。

• The journal is meant to serve mathematicians and also those who use a dynamical system as a tool, and it takes work from engineering and physics as well.该刊意在服务数学家，也服务把动力系统当作工具的人，工程与物理的工作亦予收载。

• Reviews are admitted from time to time, and the journal carries a survey that draws a line of work into one view.该刊不时收载综述，刊载把一条研究线索汇入一个视角的述评。

• The journal is published under a long established mathematics imprint, and its volumes aim to be substantial in size.该刊在一家历史悠久的数学出版社名下出版，其各卷在篇幅上力求厚实。

History

• The journal was founded in 1999, and it was set up by a seminar of dynamical systems at a Spanish university.该刊创办于 1999 年，由一所西班牙大学的动力系统研讨机构设立。

• It was issued for its first years from that university, and the list later passed to a mathematics imprint in Basel.该刊最初数年在上述大学发行，刊物名录后来转入巴塞尔的一家数学出版社。

• The pair of numbers has stayed with the title, and the print and electronic editions share the same strings of digits.该对刊号一直伴随题名，印本与电子版共用同样的数字串。

• Four issues were gathered into a volume at first, and the journal has since moved to six.该刊起初每卷汇集四期，此后增至六期。

• A volume is published for each year, and the series had reached volume 25 by 2026.该刊每年出版一卷，到 2026 年已出至第 25 卷。

• Occasional supplements are issued alongside a volume, and the journal gathers together the work of a meeting.该刊随某卷出版不定期增刊，把某次会议的工作汇于一处。

• Articles are published online ahead of an issue, so that a paper may appear before the issue it is assigned to.论文先于某一期在线发表，因而一篇论文可以在其所归的某一期之前出现。

• The journal is hybrid, and an author may pay a charge to make a paper free to read or leave it behind a subscription.该刊为混合模式，作者可以缴费使论文免费阅读，也可以留其在订阅之后。

• The impact figure rose sharply in recent editions, from about two in 2024 to 3.2 in the 2025 edition.影响因子在近期各版中大幅上升，2024 年约为 2，2025 年版为 3.2。

• The journal is indexed in the science citation index expanded, and it is carried in zbMATH and in the usual mathematical abstracting services.该刊被科学引文索引扩展版收录，并被 zbMATH 与惯常的数学文摘服务收录。

• Its papers are also listed in PubMed on a selective basis, and the journal records those citations as selected only.其论文亦以择选方式列入 PubMed，该刊把这些收录记为仅择选。

• Occasional collections are assembled around a theme, and the journal gathers work on a single class of system.该刊不时围绕某一题目编成合集，汇集关于某一类系统的工作。

Editors

• Three editors-in-chief share the office, Jaume Giné, Jaume Llibre and Joan Torregrosa.三位主编分担此职，即（Jaume Giné）、（Jaume Llibre）与（Joan Torregrosa）。

• Their own fields include the integrability of a system, the periodic orbits of a flow, and the theory of a planar vector field.他们的领域包括系统的可积性、流的周期轨道，以及平面向量场理论。

• One of the three also takes the office of editor-in-charge, and a body of associate editors shares the handling of papers.三人之中另有一位兼任主责编辑，一组副编辑分担稿件处理。

• An editorial board advises on direction, and the journal draws its members from universities in several countries.一个编委会为方向提供建议，该刊从数个国家大学遴请成员。

• The journal sets out the classes of manuscript it takes, along with the length and structure each of them should follow.该刊列明所收稿件的类别，以及各类别应遵循的篇幅与结构。

• Each paper is sent to independent referees, and the review is anonymous on the side of the reviewer.每篇论文送交独立审稿人，评审在审稿人一侧为匿名。

• Authors must declare any competing interest, and the journal states its ethical requirements in full.作者必须声明任何利益冲突，该刊完整说明其伦理要求。

• A paper that rests on a computation is asked to justify it, and the journal declines a result that is only numeric.依据计算的研究须为其计算给出理由，该刊谢绝仅为数值的结果。

• A decision is reached quickly, and the journal reports a median time of about two days from submission to a first decision.该刊迅速作出决定，报告从投稿到首次决定的中位时间约为两天。

• Manuscripts are submitted through the publisher's platform, and an enquiry may be made before a paper is written.稿件通过出版方的平台投递，在动笔之前可先行询问。

• The journal is read by mathematicians and by physicists, by engineers and by applied scientists, and it writes for all of them.该刊的读者既有数学家与物理学家，也有工程师与应用科学家，它为这几类人写作。

• Work that settles a long open question is given room, and the journal asks what the settlement changes for the field.解决某一长期悬而未决问题的工作有篇幅可用，该刊追问这一解决对领域改变了什么。

• Studies that report a counterexample are taken, since a case that overturns a conjecture is worth recording.报告反例的研究也在收载之列，因为推翻某一猜想的事例同样值得记录。

• Work on a limit cycle appears among the subjects, and the journal carries papers on how such a closed orbit is shown to exist.极限环方面的工作列于选题之中，该刊刊载这类闭轨如何被证明存在的论文。

• Work on a normal form is treated, and the journal admits papers on how a system is simplified near a singularity.规范形方面的工作得到处理，该刊收载系统如何在奇点附近被简化的论文。

• The journal keeps its reviews distinct from its original work, and a reader can tell from the rubric which is which.该刊把综述与原创工作区分开来，读者可从栏目看出何者为何者。

• Work on a perturbation is named, and the journal carries papers on how a small term changes the picture.摄动方面的工作被点名，该刊刊载小项如何改变图景的论文。

• Work on the number of periodic solutions is treated, and the journal admits papers on a counting problem of the field.周期解数目方面的工作得到处理，该刊收载该领域某一计数问题的论文。

• Work that uses algebra on a differential system is named, and the journal carries papers on how a geometric question is turned into an algebraic one.把代数用于微分系统的工作被点名，该刊刊载几何问题如何被转为代数问题的论文。

• The journal follows the publisher's policy on research integrity, and it records corrections and withdrawals where they arise.该刊遵循出版方的研究诚信政策，出现更正与撤稿时予以记录。