Journal Article
A characterization of uniformly bounded cosine functions generators
Ioana Cioranescu and Pedro Ubilla
Integral Equations and Operator Theory, 1989, Volume 12, Number 1, Pages 1-11
Journal Article
Approximation theorems for cosine operator functions
B. Nagy
Acta Mathematica Hungarica, 1977, Volume 29, Numbers 1-2, Pages 69-76
Journal Article
Cosine families and abstract nonlinear second order differential equations
C. C. Travis and G. F. Webb
Acta Mathematica Hungarica, 1978, Volume 32, Numbers 1-2, Pages 75-96
Journal Article
A representation formula for strongly continuous cosine families
G. F. Webb
Aequationes Mathematicae, 1980, Volume 21, Number 1, Pages 251-256
Book Chapter
Strongly continuous operator cosine functions
Dieter Lutz
Lecture Notes in Mathematics, 1982, Volume 948, Functional Analysis, Pages 73-97
Journal Article
Some developments in semigroups of operators since Hille-Phillips
Jerome A. Goldstein
Integral Equations and Operator Theory, 1981, Volume 4, Number 3, Pages 350-365
Book Chapter
Geometry and approximation theory in A. N. Kolmogorov’s works
Vladimir Tikhomirov
2007, Kolmogorov’s Heritage in Mathematics, Pages 151-176
Book Chapter
Inductive limits of topological vector spaces
Lecture Notes in Mathematics, 1978, Volume 639, Topological Vector Spaces, Pages 19-23
Journal Article
Coppel-Conti Sets of Linear Differential Systems
N. A. Izobov and R. A. Prokhorova
Journal of Dynamics and Differential Equations, 2003, Volume 15, Numbers 2-3, Pages 281-303
Journal Article
Degenerate convergence of semigroups
Adam Bobrowski
Semigroup Forum, 1994, Volume 49, Number 1, Pages 303-327