HILSCHER, Roman and Vera ZEIDAN. Legendre, Jacobi, and Riccati type conditions for time scale variational problem with application. Dynamic Systems and Applications. Atlanta, USA: Dynamic Publishers,Inc., 2007, vol. 16, No 3, p. 451-480. ISSN 1056-2176. |
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@article{720907, author = {Hilscher, Roman and Zeidan, Vera}, article_location = {Atlanta, USA}, article_number = {3}, keywords = {Time scale quadratic functional; Nonnegativity; Positivity; Jacobi equation; Linear Hamiltonian system; Conjugate point; Conjoined basis; Riccati matrix equation; Strengthened Legendre condition; Time-dependent impulsive dynamical system}, language = {eng}, issn = {1056-2176}, journal = {Dynamic Systems and Applications}, title = {Legendre, Jacobi, and Riccati type conditions for time scale variational problem with application}, volume = {16}, year = {2007} }
TY - JOUR ID - 720907 AU - Hilscher, Roman - Zeidan, Vera PY - 2007 TI - Legendre, Jacobi, and Riccati type conditions for time scale variational problem with application JF - Dynamic Systems and Applications VL - 16 IS - 3 SP - 451-480 EP - 451-480 PB - Dynamic Publishers,Inc. SN - 10562176 KW - Time scale quadratic functional KW - Nonnegativity KW - Positivity KW - Jacobi equation KW - Linear Hamiltonian system KW - Conjugate point KW - Conjoined basis KW - Riccati matrix equation KW - Strengthened Legendre condition KW - Time-dependent impulsive dynamical system N2 - A time scale quadratic problem J with piecewise right-dense continuous coefficients and one varying endpoint is considered. Such problems are ``hybrid'', since they include mixing of continuous- and discrete-time problems. A new notion of a generalized conjugate point involving ``dynamic'' (hybrid) systems and comprising as special cases those known for the continuous- and discrete-time settings is introduced. A type of a strengthened Legendre condition is identified and used to establish characterizations of the nonnegativity and positivity of J in terms of (i) the nonexistence of such conjugate points, (ii) the natural conjoined basis of the associated time scale Jacobi equation, and (iii) a solution of the corresponding time scale Riccati equation. These results furnish second order necessary optimality conditions for a nonlinear time scale variational problem. ER -
HILSCHER, Roman and Vera ZEIDAN. Legendre, Jacobi, and Riccati type conditions for time scale variational problem with application. \textit{Dynamic Systems and Applications}. Atlanta, USA: Dynamic Publishers,Inc., 2007, vol.~16, No~3, p.~451-480. ISSN~1056-2176.
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