A REPRESENTATION THEORY FOR A CLASS OF VECTOR AUTOREGRESSIVE MODELS FOR FRACTIONAL PROCESSES
一类分数阶过程向量自回归模型的表示理论AI 解读 ↓
本页整理公开书目信息,不生成学术质量评分。AI 解读根据题名及所注明的摘要或原文片段生成,未完成全文核验,可能有误;具体假设、证明与结论请核对原文。摘要保留来源文本,未经模型改写。
DOI 首次登记不等于接收或发表日期。部分更正、评论等条目没有独立摘要;缺少可靠材料时保留待补状态。
引用量采用 OpenAlex 单条关联记录,不合计多个记录;关联记录可能包含正式发表版本,不等于此版本单独引用。缺失不视为零,引用指标不代表论文质量。
关注作者按书目中的完整姓名匹配,同名和姓名变体需人工辨别。相关论文先按共享细分方向和具体方法排列,再参考通用方法与发表日期。
AI 根据所提供的论文材料归类:摘要明确研究分数阶向量自回归、单位根与积分阶数,属于时间序列理论。
一类分数阶过程向量自回归模型的表示理论AI 解读 ↓
正在核对关联版本…
正在核对对应版本的资源…
Based on an idea of Granger (1986, Oxford Bulletin of Economics and Statistics 48, 213–228), we analyze a new vector autoregressive model defined from the fractional lag operator 1 − (1 − L ) d . We first derive conditions in terms of the coefficients for the model to generate processes that are fractional of order zero. We then show that if there is a unit root, the model generates a fractional process X t of order d , d > 0, for which there are vectors β so that β‼ X t is fractional of order d − b , 0 < b ≤ d . We find a representation of the solution that demonstrates the fractional properties. Finally we suggest a model that allows for a polynomial fractional vector, that is, the process X t is fractional of order d , β‼ X t is fractional of order d − b , and a linear combination of β‼ X t and Δ b X t is fractional of order d − 2 b . The representations and conditions are analogous to the well-known conditions for I (0), I (1), and I (2) variables.