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On refactorization problems and rational Lax matrices of quadrirational Yang-Baxter maps
Published 2025“…We present rational Lax representations for one-component parametric quadrirational Yang–Baxter maps in both the abelian and non-abelian settings. …”
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Letter to J Long
Published 1939“…Typescript letter advising Mr Long that he has been elected to a sub-committee and arranging a meeting. …”
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Letter to J J Long
Published 1939“…Typescript letter informing Mr Long of recent developments. Unsigned. Dated 20 January 1939.…”
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Letter to J J Long
Published 1939“…Typescript letter dated 20 March 1939, from the Organising Secretary of the Anti-Partition of Ireland League to J J Long, about an upcoming meeting in the Clapham area.…”
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Long memory in the Ukrainian stock market
Published 2013“…This paper examines the dynamics of stock prices in Ukraine by estimating the degree of persistence of the PFTS stock market index. Using long memory techniques we show that the log prices series is I(d) with d slightly above 1, implying that returns are characterised by a small degree of long memory and thus are predictable using historical data. …”
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Letter to Mr J J Long
Published 1939“…Typescript letter asking if Mr Long can speak at the upcoming meeting on 28 March and updating him on other developments. …”
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Letter from J. J. Long
Published 1939“…Typescript letter dated 21 April 1939, addressed "Dear Tom", from J J Long, about a meeting of the branch.…”
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Long memory In the Ukrainian stock market and financial crises
Published 2014“…This paper examines persistence in the Ukrainian stock market during the recent financial crisis. Using two different long memory approaches (R/S analysis and fractional integration) we show that this market is inefficient and the degree of persistence is not the same in different stages of the financial crisis. …”
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Long memory in US real output per capita
Published 2009“…This paper analyses the long memory properties of quarterly real output per capita in the US (1948Q1 - 2008Q3) using non-parametric, semi-parametric and parametric techniques. …”
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How long should things last? Design in the GDR
Published 2017“…The one perspective presented here is offered by the case of the German Democratic Republic (GDR), where during the 1970s a lively debate on lifespan and patina took place among designers, theorists, and readers around the question how long things should last.…”
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Long memory and volatility dynamics in the US dollar exchange rate
Published 2010“…We model both absolute values of returns and squared returns using long-memory techniques, being particularly interested in volatility modelling and forecasting given their importance for FOREX dealers. …”
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Letter from the Organising Secretary of the APL to J. J. Long
Published 1939“…Typescript letter dated 25 April 1939, to J J Long, from the Organising Secretary, about a public meeting.…”
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