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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Degenerate evolution equations in Hilbert space
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by Avner Friedman and Zeev Schuss PDF
Trans. Amer. Math. Soc. 161 (1971), 401-427 Request permission

Abstract:

We consider the degenerate evolution equation ${c_1}(t)du/dt + {c_2}(t)A(t)u = f(t)$ in Hilbert space, where ${c_1} \geqq 0,{c_2} \geqq 0,{c_1} + {c_2} > 0;A(t)$ is an unbounded linear operator satisfying the usual conditions which ensure that there is a unique solution for the Cauchy problem $du/dt + A(t)u = f(t){\rm {in}}(0,T],u(0) = {u_0}$. We prove the existence and uniqueness of a weak solution, and differentiability theorems. Applications to degenerate parabolic equations are given.
References
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Additional Information
  • © Copyright 1971 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 161 (1971), 401-427
  • MSC: Primary 47.60; Secondary 35.00
  • DOI: https://doi.org/10.1090/S0002-9947-1971-0283623-9
  • MathSciNet review: 0283623