. . "GE - Gruzie" . . . "1" . "[3249B601A084]" . . "28"^^ . . . "Lomtatidze, Alexander" . . "In the paper the question on the existence and uniqueness of a constant sign solution of a periodic type BVP for linear FDEs is studied."@en . "\u0160remr, Ji\u0159\u00ED" . . "On constant sign solutions of a periodic type boundary value problem for firstorder functional differential equations."@en . "3"^^ . "65;92" . "RIV/67985840:_____/02:05020129" . "In the paper the question on the existence and uniqueness of a constant sign solution of a periodic type BVP for linear FDEs is studied." . "P(GA201/00/D058), P(GA201/99/0295), Z(AV0Z1019905)" . "On constant sign solutions of a periodic type boundary value problem for firstorder functional differential equations." . . "3"^^ . "0"^^ . "0"^^ . . . "On constant sign solutions of a periodic type boundary value problem for firstorder functional differential equations."@en . "Hakl, Robert" . "Memoirs on Differential Equations and Mathematical Physics" . "RIV/67985840:_____/02:05020129!RIV/2003/AV0/A05003/N" . . "On constant sign solutions of a periodic type boundary value problem for firstorder functional differential equations." . . "26" . . . . "1512-0015" . "linear functional differential equations%periodic type BVP%solvability and unique solvability"@en . . "656838" .