20.500.12556/DKUM-51433 Adjoints of solution semigroups and identifiability of delay differential equations in Hilbert spaces The paper deals with semigroups of operators associated with delay differential equation: ▫$dot{x}=Ax(t)+L_1x(t-h)+L_2x_t$▫, where ▫$A$▫ is the infinitesimal generator of an analytic semigroup on a Hilbert space ▫$X$▫ and ▫$L_1$▫, ▫$L_2$▫ are densely defined closed operators in ▫$X$▫ and ▫$L^2(-h,0;X)$▫ respectively. The adjoint semigroup of the solution semigroup of the delay differential equation is characterized. Eigenspaces of the generator of the adjoint semigroup are studied and the identifiability of parameters of the equation is given. matematika analiza navadne diferencialne enačbe polgrupe operatorjev diferencialne enačbe z zakasnitvijo polgrupe rešitev adjungirane polgrupe prepoznavnost mathematics analysis ordinary differential equations semigroups of operators delay differential equations adjoints of solution semigroups identifiability true false false Angleški jezik Neznan jezik Delo ni kategorizirano 2015-07-10 14:46:33 2015-07-10 14:46:33 2022-05-30 03:05:49 2021-05-09 03:36:42 1994 0 0 str. 193-206 no. 2 Vol. 13 1994 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 517.91 7153412 0862-9544 URN:SI:UM:DK:TJ0VBSBB http://www.iam.fmph.uniba.sk/amuc/_vol-63/_no_2/_mastins/mastinse.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=75993 Ekonomsko-poslovna fakulteta 0 0 0