Hadamard's example: (a) Consider the Cauchy problem for the Laplace equation "u +u, =0 (El1.1 subject to u(x, 0) = 0, u, (x. 0) = - sin nx, where n is a positive integer. its solution is "„(x, y) →sinh ny sin nx (El1.2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
icon
Concept explainers
Topic Video
Question
100%
Please solve it.
11. Hadamard's example:
(a) Consider the Cauchy problem for the Laplace equation
I" +u, =0
(El1.1)
subject to u(x, 0) = 0, u, (x, 0) = - sin nx, where n is a positive integer.
its solution is
sin
-sinh ny sin nx
и, (х. у)
(El1.2)
Show that for large n, the absolute value of the initial data
aroitrarily small, while the solution (EI1.2) takes arbitrarily large values even at the
points (x, y) with y| as small as we want.
can be made
Transcribed Image Text:11. Hadamard's example: (a) Consider the Cauchy problem for the Laplace equation I" +u, =0 (El1.1) subject to u(x, 0) = 0, u, (x, 0) = - sin nx, where n is a positive integer. its solution is sin -sinh ny sin nx и, (х. у) (El1.2) Show that for large n, the absolute value of the initial data aroitrarily small, while the solution (EI1.2) takes arbitrarily large values even at the points (x, y) with y| as small as we want. can be made
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Angles, Arcs, and Chords and Tangents
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,