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Czasopismo

2000 | 138 | 2 | 165-177

Tytuł artykułu

On the growth of analytic semigroups along vertical lines

Treść / Zawartość

Języki publikacji

EN

Abstrakty

EN
We construct two Banach algebras, one which contains analytic semigroups $(a^z)_{Re z>0}$ such that $|a^{1+iy}| → ∞$ arbitrarily slowly as $|y| → ∞$, the other which contains ones such that $|a^{1+iy}| → ∞$ arbitrarily fast

Czasopismo

Rocznik

Tom

138

Numer

2

Strony

165-177

Daty

wydano
2000
otrzymano
1999-01-12
poprawiono
1999-11-15

Twórcy

  • Departamento de Matemáticas, Universidad de Zaragoza, E-50009 Zaragoza, Spain
  • Département de mathématiques et de statistique, Université Laval, Québec, Canada G1K 7P4

Bibliografia

  • [BH] A. Beurling and H. Helson, Fourier-Stieltjes transforms with bounded powers, Math. Scand. 1 (1953), 120-126.
  • [C] T. Carleman, Sur un théorème de Weierstrass, Ark. Mat. Astronom. Fys. 20B (1927), 1-5.
  • [E1] J. Esterle, A complex-variable proof of the Wiener Tauberian theorem, Ann. Inst. Fourier (Grenoble) 30 (1980), 91-96.
  • [E2] J. Esterle, Rates of decrease of sequences of powers in commutative radical Banach algebras, Pacific J. Math. 94 (1981), 61-82.
  • [E3] J. Esterle, Elements for a classification of commutative radical Banach algebras, in: Proc. Conf. on Radical Banach Algebras and Automatic Continuity (Long Beach, 1981), J. M. Bachar and others (ed.), Lecture Notes in Math. 975, Springer, Berlin, 1983, 4-65.
  • [E4] J. Esterle, private communication.
  • [EG] J. Esterle and J. E. Galé, Regularity of Banach algebras generated by analytic semigroups satisfying some growth conditions, Proc. Amer. Math. Soc. 92 (1984), 377-380.
  • [G] J. E. Galé, Banach algebras generated by analytic semigroups having compactness properties on vertical lines, in: Proc. Conf. on Automatic Continuity and Banach Algebras (Canberra, 1989), R. J. Loy (ed.), Proc. Centre Math. Anal. Austral. Nat. Univ. 21, Austral. Nat. Univ., Canberra, 1989, 126-143.
  • [GW] J. E. Galé and M. C. White, An analytic semigroup version of the Beurling-Helson theorem, Math. Z. 225 (1997), 151-165.
  • [GM] C. C. Graham and O. C. McGehee, Essays in Commutative Harmonic Analysis, Springer, New York, 1979.
  • [K] J.-P. Kahane, Séries de Fourier absolument convergentes, Springer, Berlin, 1970.
  • [R] T. J. Ransford, Norm inequalities for holomorphic semigroups, Israel J. Math. 97 (1997), 157-173.
  • [S] A. M. Sinclair, Continuous Semigroups in Banach Algebras, Cambridge Univ. Press, Cambridge, 1982.
  • [W] M. C. White, Strong Wedderburn decompositions of Banach algebras containing analytic semigroups, J. London Math. Soc. (2) 49 (1994), 331-342.

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