On the Exactness of Lasserre Relaxations and Pure States Over Real Closed Fields
On the Exactness of Lasserre Relaxations and Pure States Over Real Closed Fields
复制标题
论实闭域上拉塞尔弛豫和纯态的精确性
DOI:
10.1007/s10208-018-9406-z
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发表时间:
2019
影响因子:
3
通讯作者:
M. Schweighofer
中科院分区:
文献类型:
--
作者:
T.-L. Kriel;M. Schweighofer
Consider a finite system of non-strict polynomial inequalities with solution set. Its Lasserre relaxation of degreedis a certain natural linear matrix inequality in the original variables and one additional variable for each nonlinear monomial of degree at mostd. It defines a spectrahedron that projects down to a convex semialgebraic set containingS. In the best case, the projection equals the convex hull ofS. We show that this is very often the case for sufficiently highdifSis compact and “bulges outwards” on the boundary of its convex hull. Now let additionally a polynomial objective functionfbe given, i.e., consider a polynomial optimization problem. Its Lasserre relaxation of degreedis now a semidefinite program. In the best case, the optimal values of the polynomial optimization problem and its relaxation agree. We prove that this often happens ifSis compact anddexceeds some bound that depends on the description ofSand certain characteristics offlike the mutual distance of its global minimizers onS.
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DOI:
10.1137/17m1118981
发表时间:
2016-12
期刊:
SIAM J. Appl. Algebra Geom.
影响因子:
--
作者:
C. Scheiderer
通讯作者:
C. Scheiderer
DOI:
10.1137/100801913
发表时间:
2009-11
期刊:
SIAM J. Optim.
影响因子:
--
作者:
J. Gouveia;Tim Netzer
通讯作者:
J. Gouveia;Tim Netzer
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Sabine Burgdorf;C. Scheiderer;M. Schweighofer
通讯作者:
M. Schweighofer
影响因子:
0.9
作者:
F. Jellett
通讯作者:
F. Jellett
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
A. Prestel;Charles N. Delzell
通讯作者:
Charles N. Delzell