On this webpage you will find my solutions to the third edition of "Nonlinear Partial Differential Equations for Scientists and Engineers" by Lokenath Debnath. Here is a link to the book's page on amazon.com. If you find my work useful, please consider making a donation. Thank you.

Chapter 1: Linear Partial Differential Equations
Exercise 1 Exercise 12 Exercise 23 Exercise 34 Exercise 45
Exercise 2 Exercise 13 Exercise 24 Exercise 35 Exercise 46
Exercise 3 Exercise 14 Exercise 25 Exercise 36 Exercise 47
Exercise 4 Exercise 15 Exercise 26 Exercise 37 Exercise 48
Exercise 5 Exercise 16 Exercise 27 Exercise 38 Problem 1.49
Exercise 6 Exercise 17 Exercise 28 Exercise 39 Problem 1.50
Exercise 7 Exercise 18 Exercise 29 Exercise 40 Problem 1.51
Exercise 8 Exercise 19 Exercise 30 Exercise 41 Problem 1.52
Exercise 9 Exercise 20 Exercise 31 Exercise 42 Problem 1.53
Exercise 10 Exercise 21 Exercise 32 Exercise 43 Problem 1.54
Exercise 11 Exercise 22 Exercise 33 Exercise 44 Problem 1.55
Chapter 1: Linear Partial Differential Equations
Problem 1.56 Problem 1.66 Problem 1.76 Problem 1.86 Problem 1.96
Problem 1.57 Problem 1.67 Problem 1.77 Problem 1.87 Problem 1.97
Problem 1.58 Problem 1.68 Problem 1.78 Problem 1.88 Problem 1.98
Problem 1.59 Problem 1.69 Problem 1.79 Problem 1.89 Problem 1.99
Problem 1.60 Problem 1.70 Problem 1.80 Problem 1.90 Problem 1.100
Problem 1.61 Problem 1.71 Problem 1.81 Problem 1.91 Problem 1.101
Problem 1.62 Problem 1.72 Problem 1.82 Problem 1.92 Problem 1.102
Problem 1.63 Problem 1.73 Problem 1.83 Problem 1.93 Problem 1.103
Problem 1.64 Problem 1.74 Problem 1.84 Problem 1.94 Problem 1.104
Problem 1.65 Problem 1.75 Problem 1.85 Problem 1.95 Problem 1.105
Chapter 2: Nonlinear Model Equations and Variational Principles
Problem 1 | Solution Problem 7 | Solution Problem 13 | Solution Problem 19 | Solution Problem 25 | Solution
Problem 2 | Solution Problem 8 | Solution Problem 14 | Solution Problem 20 | Solution Problem 26 | Solution
Problem 3 | Solution Problem 9 | Solution Problem 15 | Solution Problem 21 | Solution Problem 27 | Solution
Problem 4 | Solution Problem 10 | Solution Problem 16 | Solution Problem 22 | Solution Problem 28 | Solution
Problem 5 | Solution Problem 11 | Solution Problem 17 | Solution Problem 23 | Solution Problem 29 | Solution
Problem 6 | Solution Problem 12 | Solution Problem 18 | Solution Problem 24 | Solution