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Let F be the cyclotomic field of fifth roots of unity. We computationally investigate modularity of elliptic curves over F
The current discipline of project management is based on the model of the project life cycle or phased stage-gate approach to executing projects. This implies a clear definition of mission and system ...
When analysing time series an important issue is to decide whether the time series is stationary or a random walk. Relaxing these notions, we consider the problem to decide in favor of the I(0)- or ...
Testing of Unit and Fractional Roots in the Context of Deterministic Trends with Weakly Autocorrelated Disturbances。
This paper deals with nonstationary autoregressive (AR) models with complex roots on the unit circle. We examine the asymptotic properties of the least squares estimators (LSEs) in the model. We also ...
This paper deals with nonstationary autoregressive (AR) models with complex roots on the unit circle. We examine the asymptotic properties of the least squares estimators (LSEs) in the model. We also ...

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