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We develop an elementary theory of Fourier and Laplace transformations for exponentially decreasing hyperfunctions. Since any hyperfunction can be extended to an exponentially decreasing hyperfunction, this provides simple notions of asymptotic Fourier and Laplace transformations for hyperfunctions, improving the existing models. This is used to prove criteria for the uniqueness and solvability of the abstract Cauchy problem in Fréchet spaces.
Michael Langenbruch. "Asymptotic Fourier and Laplace transformations for hyperfunctions." Studia Mathematica 205.1 (2011): 41-69. <http://eudml.org/doc/285845>.
@article{MichaelLangenbruch2011, abstract = {We develop an elementary theory of Fourier and Laplace transformations for exponentially decreasing hyperfunctions. Since any hyperfunction can be extended to an exponentially decreasing hyperfunction, this provides simple notions of asymptotic Fourier and Laplace transformations for hyperfunctions, improving the existing models. This is used to prove criteria for the uniqueness and solvability of the abstract Cauchy problem in Fréchet spaces.}, author = {Michael Langenbruch}, journal = {Studia Mathematica}, keywords = {asymptotic Fourier transformation; asymptotic Laplace transformation; hyperfunction; abstract Cauchy problem; asymptotic resolvent}, language = {eng}, number = {1}, pages = {41-69}, title = {Asymptotic Fourier and Laplace transformations for hyperfunctions}, url = {http://eudml.org/doc/285845}, volume = {205}, year = {2011}, }
TY - JOUR AU - Michael Langenbruch TI - Asymptotic Fourier and Laplace transformations for hyperfunctions JO - Studia Mathematica PY - 2011 VL - 205 IS - 1 SP - 41 EP - 69 AB - We develop an elementary theory of Fourier and Laplace transformations for exponentially decreasing hyperfunctions. Since any hyperfunction can be extended to an exponentially decreasing hyperfunction, this provides simple notions of asymptotic Fourier and Laplace transformations for hyperfunctions, improving the existing models. This is used to prove criteria for the uniqueness and solvability of the abstract Cauchy problem in Fréchet spaces. LA - eng KW - asymptotic Fourier transformation; asymptotic Laplace transformation; hyperfunction; abstract Cauchy problem; asymptotic resolvent UR - http://eudml.org/doc/285845 ER -