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Publication year : 2004 ✕
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Method of additional argument in problems of optimal control

Ramiz RAFATOV

The problem of control of the process described by the nonlinear differential equation with partial derivatives of the first order, with conditions at t 0 and in a sequence n of points x1 < x2 ... < xn is solved. The criterion of quality of control is the integrated quadratic functional, which depends on a final state of system and set n of controlling parameters. The method of increment of functional is applied to reception of conditions of optimality, and the method of additional argument (MAA) is applied for the decision of the nonlinear equations with partial derivatives.

Proceedings Paper 2004 Fen Fakültesi IFAC Proceedings Volumes (IFAC-PapersOnline)37 ( 17 ) 9 Views
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Persistence in inflation: Does Aggregation Cause Long Memory?

Mehmet BALCILAR

This paper examines persistence in Turkish inflation rates using data from consumer and wholesale price indices. The inflationary process in Turkey is believed to be highly inertial, which should lead to strongly persistent inflation series. Persistence of seventy-five inflation series at various aggregation levels is examined by estimating models that allow long memory through fractional differencing. The order of fractional differencing is estimated using several semiparametric and maximum likelihood methods. Persistence of each series is evaluated using the time required for a given percent ...More

Proceedings Paper 2004 İktisadi ve İdari Bilimler Fakültesi Emerging Markets Finance and Trade40 ( 5 ) 41 Views
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Method of spherical harmonic series in the problem of minimization of atmosphere pollution by fractions of harmful admixtures

Ramiz RAFATOV

The problem of minimization of atmosphere pollution by fractions of harmful admixtures is studied. It is supposed that a controlled object is described by non-stationary integral–differential transfer equation with special boundary conditions and control parameters, which are included in the right part of equation as delta-functions. Minimized integral quadratic functional characterizes energy expenditure for control and depends on the average squared deflection of fraction concentration from the desired final state. Optimal conditions are obtained with the help of Pontryagin’s maximum princip ...More

Proceedings Paper 2004 Fen Fakültesi Mathematics and Computers in Simulation67 ( 4–5 ) 95 Views
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Основные геоэкологические проблемы Кыргызской республики

Kanatbek KOCOBAYEV

Рассматривается спектр экологических проблем Кыргызской Республики, обусловленных состоянием геологической среды и ее динамикой под влиянием природных и техногенных воздействий. Особенно остро в республике стоят проблемы, связанные с загрязнением атмосферы в городах, геологической среды, поверхностных и подземных вод. Отмечено, что наиболее явное и масштабное воздействие на окружающую среду оказывают бывшие и действующие предприятия горнодобывающей отрасли. По степени опасности и величине ущерба из геологических и инженерно-геологических процессов наиболее значимы землетрясения; оползни, обвал ...More

Article 2004 Mühendislik Fakültesi Геоэкология ( 1 ) 253 Views
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