Jezik: | Slovenski jezik |
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Leto izida: | 2022 |
Tipologija: | 2.11 - Diplomsko delo |
Organizacija: | UL FRI - Fakulteta za računalništvo in informatiko |
Založnik: | [F. Marušič] |
UDK: | 004:51(043.2) |
COBISS: |
124326403
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Št. ogledov: | 253 |
Št. prenosov: | 36 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
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Sekundarni jezik: | Angleški jezik |
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Sekundarni naslov: | Truncated moment problems and positive semidefinite matrix completions |
Sekundarni povzetek: | The truncated moment problem asks to characterize linear functionals over the space of polynomials of a given degree, which can be represented as integration over the positive Borel measure $\mu$ with support on a given closed subset of $\real^n$. We can solve this by observing the properties of the corresponding moment matrix $\mathcal{M}$. In this work we are going to study the cases that have two variables. We then label the columns of $\mathcal{M}$ with monomials $x^i y^j$. In this way, every element of the kernel of $\mathcal{M}$ can be expressed as a symbolic zero set of some polynomial. In our approach we will assume that $\mathcal{M}$ is singular and in this way we will get rid of one of the variables. Afterwards we will solve the corresponding one dimensional problem. We are going to crucially rely on some results from graph theory, since there are certain moments in the sequence that are missing. |
Sekundarne ključne besede: | moment problem;semidefinite Hankel matrix;chordal graph;computer science and mathematics;interdisciplinary studies;diploma; |
Vrsta dela (COBISS): | Diplomsko delo/naloga |
Študijski program: | 1000407 |
Konec prepovedi (OpenAIRE): | 1970-01-01 |
Komentar na gradivo: | Univ. v Ljubljani, Fak. za računalništvo in informatiko |
Strani: | 38 str. |
ID: | 16479249 |