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2015 Fiscal Year Final Research Report

Studies on stochastic Fourier coefficients

Research Project

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Project/Area Number 25400135
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Basic analysis
Research InstitutionAichi University of Education

Principal Investigator

Uemura Hideaki  愛知教育大学, 教育学部, 教授 (30203483)

Co-Investigator(Kenkyū-buntansha) OGAWA Shigeyoshi  立命館大学, 理工学部, 非常勤講師 (80101137)
Project Period (FY) 2013-04-01 – 2016-03-31
Keywords確率フーリエ係数 / 非因果的関数 / Ogawa積分 / Skorokhod積分 / Malliavin解析 / 確率フーリエ変換 / Haar関数系
Outline of Final Research Achievements

We studied the identification problem of a random function from the system of its stochastic Fourier coefficients (SFC in abbr.). We note that SFCs are determined in accordance with the choice of orthonormal basis and stochastic integrals employed to construct SFCs.
If we employ the system of trigonometric functions and Skorokhod integral to construct SFCs, then we obtained an affirmative answer to the identification problem and found a concrete procedure to reconstruct a random function from its SFCs with the aid of Brownian motion under some conditions on a random function.
If we employ the system of trigonometric functions or Haar functions and Ogawa integral to construct SFCs, then we also obtained an affirmative answer to the identification problem and found a concrete procedure to reconstruct a random function only from its SFCs without the aid of Brownian motion under some conditions on a random function.

Free Research Field

確率解析

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Published: 2017-05-10  

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