Consider a matrix A of the form A- (:) d with a, b, c, d ER not all equal to zero. Define the linear map fa induced by A by () () - (: :) () - () (u(x, y)\ v(x, y), a ах + by f: E R? H E R² . d сх + dy C (i) Compute the Jacobi matrix DfA(x,y) at (x, y) E R². (ii) Show that fa is real differentiable at every (x,y) E R². (iii) Write z = x + iy, w = u + iv, and regard fA as a function ƒa: C → C, namely = fA(2) = Az. Show that fa is complex differentiable if and only if w = d = a and c= -b. (1)
Consider a matrix A of the form A- (:) d with a, b, c, d ER not all equal to zero. Define the linear map fa induced by A by () () - (: :) () - () (u(x, y)\ v(x, y), a ах + by f: E R? H E R² . d сх + dy C (i) Compute the Jacobi matrix DfA(x,y) at (x, y) E R². (ii) Show that fa is real differentiable at every (x,y) E R². (iii) Write z = x + iy, w = u + iv, and regard fA as a function ƒa: C → C, namely = fA(2) = Az. Show that fa is complex differentiable if and only if w = d = a and c= -b. (1)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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As per bartleby guidelines for more than three subparts in a question only first three should be answered. Please upload others separately.
(i) Given that
The Jacobian matrix ,
Here
Therefore,
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