Abstract

We approximate in isolated solution of a compact operator equations using the solutions of a family of collectively compact operator equations.

Highlights

  • We study the quadratic equotion* l)epartment of Mathematics, New Ntexico State University

  • We assume in the first part of this paper that solutions of the family of quadratic equations y+O(x),n n where {Q}, n = 1,2, ... n are collectively compact and the Q converge n pointwise to Q are known

  • If ( 1) is nonsingular, (2) is uniquely sol vable for sufficiently large n and the approximate solutions converge to the true solution [1]

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Summary

We study the quadratic equotion

* l)epartment of Mathematics, New Ntexico State University. We assume in the first part of this paper that solutions of the family of quadratic equations. N are collectively compact and the Q converge n pointwise to Q are known. We use these solutions to approximate a solutio" of ( 1). If ( 1) is nonsingular, (2) is uniquely sol vable for sufficiently large n and the approximate solutions converge to the true solution [1]. (2) has a unique solution in a neighn borhood of on isolated solution of ( 1) l·+' n is sufficiently large and these s0lutions converge to the isolated solution [8].

Let B be the unique symmetric bilineor operotor ossocioted with
Let trie b i linear
Moreover by applying the collectively compact approximation theory to
Thot is lim x n
Define the finite ronk operator Q on X by
Note thot if is o bounded quodrotic operotor ond
ICI Since
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