نتایج جستجو برای: prescott equation

تعداد نتایج: 230479  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ریاضی 1393

در ابتدا به طور مختصر ارتباط بین مسائل تغییراتی و معادلات دیفرانسیل را بیان می کنیم. همان طور که می دانیم هر معادله دیفرانسیل را می توان به صورت ‎egin{equation} label{yek}‎ ‎a(u)= 0‎ ‎end{equation}‎ نوشت، که در آن ‎$ a(u) $‎ یک عملگر دیفرانسیل معمولی یا جزئی خطی یا غیرخطی و ‎$ u $‎ مجهول می باشد. برای حل این معادلات و به خصوص معادلات دیفرانسیل جزیی غیرخطی راه حل مشخصی وجود ندارد.حساب تغییر...

Journal: :JOURNAL OF THE JAPAN STATISTICAL SOCIETY 2008

Journal: :Hispanic American Historical Review 1968

Journal: :Paedagogica Historica 2021

This article addresses the ways in which education systems responded to aftermath of World War I with respect for nationalism and internationalism. It does so by drawing on theories internationalism through an analysis writings Daniel Prescott, American scholar who toured European schools middle 1920s. Influenced his experience frontline warfare as a volunteer driver France 1917, Prescott trave...

2006
Robin M Rudd Robin J Prescott J C Chalmers Ian D A Johnston

Robin M Rudd, Robin J Prescott, J C Chalmers, Ian D A Johnston, for the Fibrosing Alveolitis Subcommittee of the Research Committee of the British Thoracic Society . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

2006
Tucker McElroy

The Hodrick-Prescott (HP) filter is widely used in the field of economics to estimate trends and cycles from time series data. For certain applications – such as deriving implied trend and cycle models and obtaining filter weights – it is desirable to express the frequency response of the HP as the spectral density of an ARMA model; in other words, to accomplish the spectral factorization of th...

Journal: :Jurnal Natural 2023

Solar energy plays an important role in the temperature distribution on Earth's surface and essential that sustains life for human. In calculation of solar energy, limitation radiation data is a major obstacle. very limited at some observation stations due to costly procurement measuring instruments complicated techniques. Estimation global using empirical models one way overcome limitations va...

2006
V. V. Chari Patrick J. Kehoe

_________________________________________________________________________ Theoretical advances in macroeconomics made in the last three decades have had a major influence on macroeconomic policy analysis. Moreover, over the last several decades, the United States and other countries have undertaken a variety of policy changes that are precisely what macroeconomic theory of the last 30 years sug...

Journal: :Hispanic American Historical Review 1962

Journal: :Empirical Economics 2022

Abstract Hodrick–Prescott (HP) filter is a popular trend filtering method for univariate macroeconomic time series such as real gross domestic product. This paper considers the quantile regression version of HP (qHP filter), which defined by replacing quadratic loss function with function. One essential properties that if includes intercept, then ratio negative residuals can be almost controlle...

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