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Article: On the gap between positive polynomials and SOS of polynomials
Title | On the gap between positive polynomials and SOS of polynomials |
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Authors | |
Keywords | Hilbert's 17th problem Linear matrix inequality (LMI) Optimization Positive polynomial Sum of squares (SOS) |
Issue Date | 2007 |
Publisher | IEEE. |
Citation | Ieee Transactions On Automatic Control, 2007, v. 52 n. 6, p. 1066-1072 How to Cite? |
Abstract | This note investigates the gap existing between positive polynomials and sum of squares (SOS) of polynomials, which affects several analysis and synthesis tools in control systems based on polynomial SOS relaxations, and about which almost nothing is known. In particular, a matrix characterization of the PNS, that is the positive homogeneous forms that are not SOS, is proposed, which allows to show that any PNS is the vertex of an unbounded cone of PNS. Moreover, a complete parametrization of the set of PNS is introduced. © 2007 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/57458 |
ISSN | 2023 Impact Factor: 6.2 2023 SCImago Journal Rankings: 4.501 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Chesi, G | en_HK |
dc.date.accessioned | 2010-04-12T01:37:16Z | - |
dc.date.available | 2010-04-12T01:37:16Z | - |
dc.date.issued | 2007 | en_HK |
dc.identifier.citation | Ieee Transactions On Automatic Control, 2007, v. 52 n. 6, p. 1066-1072 | en_HK |
dc.identifier.issn | 0018-9286 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/57458 | - |
dc.description.abstract | This note investigates the gap existing between positive polynomials and sum of squares (SOS) of polynomials, which affects several analysis and synthesis tools in control systems based on polynomial SOS relaxations, and about which almost nothing is known. In particular, a matrix characterization of the PNS, that is the positive homogeneous forms that are not SOS, is proposed, which allows to show that any PNS is the vertex of an unbounded cone of PNS. Moreover, a complete parametrization of the set of PNS is introduced. © 2007 IEEE. | en_HK |
dc.language | eng | en_HK |
dc.publisher | IEEE. | en_HK |
dc.relation.ispartof | IEEE Transactions on Automatic Control | en_HK |
dc.rights | ©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. | - |
dc.subject | Hilbert's 17th problem | en_HK |
dc.subject | Linear matrix inequality (LMI) | en_HK |
dc.subject | Optimization | en_HK |
dc.subject | Positive polynomial | en_HK |
dc.subject | Sum of squares (SOS) | en_HK |
dc.title | On the gap between positive polynomials and SOS of polynomials | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9286&volume=52&issue=6&spage=1066&epage=1072&date=2007&atitle=On+the+gap+between+positive+polynomials+and+SOS+of+polynomials | en_HK |
dc.identifier.email | Chesi, G:chesi@eee.hku.hk | en_HK |
dc.identifier.authority | Chesi, G=rp00100 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1109/TAC.2007.899083 | en_HK |
dc.identifier.scopus | eid_2-s2.0-34447125653 | en_HK |
dc.identifier.hkuros | 130706 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-34447125653&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 52 | en_HK |
dc.identifier.issue | 6 | en_HK |
dc.identifier.spage | 1066 | en_HK |
dc.identifier.epage | 1072 | en_HK |
dc.identifier.isi | WOS:000247353300010 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Chesi, G=7006328614 | en_HK |
dc.identifier.issnl | 0018-9286 | - |