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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Accelerating convergence of one step methods for numerical solution of ordinary differential equations, discussing various initial value problems
Differential dynamic programming algorithms of second and first order for optimal control, considering nonlinear unconstrained and constrained problems
Maximum principle in integral form for optimal control problems with delay differential system equations, using vector matrix notation
Boundary value problem for elliptic-parabolic partial differential equations in theory of random processes, obtaining analytical solution in terms of hypergeometric functions
Correction of linear functional differential equations with time delay showing error due to incorrect interchange of order of integration involving Stieltjes integral
Nonlinear bang-bang optimal control problems solution based on differential dynamic programming, noting use of Pontryagin adjoint variables
Classification of second order quasi-linear partial differential equations with two independent variables in structural dynamics with emphasis on elastic structures
Nondeterministic differential games with imperfect state information, emphasizing linear system with quadratic cost functional and additive white Gaussian noise
Dynamic differential thermal analysis of dried plant and animal specimens and related substances yielding discrete decomposition peaks of exothermic type
Differential games theory with nonzero sum for application to economic analysis, discussing Nash equilibrium, minimax and noninferior strategies set
Dynamic differential thermal analysis with He flow performed on biological specimens, proteins and starches, showing discrete decomposition peaks monitoring pyrolysis process
Nonzero-sum differential games characteristics, generalizing optimal control concepts, discussing Nash equilibrium and noninferior set solutions
Necessary and sufficient conditions for existence of smooth solution to quasi-linear partial differential equation
Ordinary differential equations in linear topological space extended from Fattorini investigation, emphasizing use of linear operator
Differential synthesis technique application to design of multiaxis stability augmentation systems for aerospace vehicles
Differential cross sections for elastic scattering of protons by Ar atoms in energy range 12.7-44.1 ev, estimating internuclear separation
Variational or optimal control for delayed systems, involving integrated maximum principle for problems with nonlinear functional differential systems
Differential approximation for radiant energy loss in nonequilibrium plasma generated from truncated Taylor series expansion of radiation source function