Noetherian Equations. Index

  • S. G. Krein


Equation (A) is called Noetherian if it is both n-normal and d-normal; the corresponding operator A is called a Boetherian operator or a Φ-operator. [In the literature, these operators are sometimes called Fredholm operators. The operators A appearing in n-normal or d-normal equations (A) are called semi-Fredholm.]


Banach Space Homogeneous Equation Linear Extension Remarkable Property Adjoint Equation 
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Copyright information

© Birkhäuser Boston, Inc. 1982

Authors and Affiliations

  • S. G. Krein
    • 1
  1. 1.Department of MathematicsVoronezh UniversityVoronezhUSSR

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