Solutions of second order abstract retarded functional differential equations on the line (JNCA)
Volume 12
Number 2
pp. 225-240

Solutions of second order abstract retarded functional differential equations on the line
Claudio Cuevas and Hernán R. Henríquez

Key words Mathematices Subject Classification
Second-order abstract retarded functional equations, variation of constants formula, nonlocal conditions, cosine differential function of operators Primary 34K30; Secondary 47D09

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