Math 303, Fall 2008

Lecture Contents

 

 

 No

Date

Content

Pages from the textbook or Handouts

L1

Tue.

Sep.16

Construction of complex numbers, Euler’s formula, polar representation, complex-conjugation, reflections and rotations in complex plane 82-95

L2

Thu.

Sep.18

Integer powers and roots of complex numbers, complex sequences and series, complex power series and their convergence, trigonometric and hyperbolic functions, logarithm and complex powers of a complex number, inverse trigonometric and inverse hyperbolic functions of a complex variable 95-105

L3

Tue.

Sep.23

Relation between inverse hyperbolic functions and the logarithm; Review of calculus of several variable: Differential of a function, Directional and partial derivatives, Taylor series expansion for functions of one or two real variables 105, 151- 153, 160-162

L4,H1

Thu.

Sep.25

Implicit differentiation, Exact Differentials, chain rule 155-158
Q1

 Fri.

Sep.26    
      Holiday Week  
L5 Tue. Oct.07 Extremum points of real-valued functions, second derivative test and its generalization to functions of two real variables 162-165
L6 Thu. Oct.09 Extremum points of functions of n real variables, Extremization in presence of constraints, method of Lagrange multipliers 165-174
L7 Tue. Oct.14 Applications of the method Lagrange multipliers to two concrete problems, boundary (global) stationary points Handout 1
L8,H2 Thu. Oct.16 Space vectors, scalar and cross products, Kronecker delta and Levi Civita epsilon symbols, their properties and applications.

212-226

Q2 Fri. Oct.17    
L9 Tue. Oct.21 Vector calculus, gradiaent, divergence, curl, Laplacian, normal vector field to a smooth surface, particle dynamics in Newtonian mechanics, work done by a force 334-338, 347-354, 356-357 
L10 Thu. Oct.23 Conservative forces and path independence of their work, Green's Theorem. 377-382, 384-389
E1 Mon. Oct.27    
  Tue. Oct.28 Holiday  
L11 Thu. Oct.30 Sketh of a proof of Green’s theorem in plane, Proof of the equaivalence of the exactness of the differential 1-form for the infinitesimal work done by a force and the condition that the force is conservative in plane (R^2). Statement of the generalization of this theorem for R^n. 384-389
L12

Tue.

Nov.04 Divergence theorem in plane with proof, Divergence theorem R^3 with a sketch of proof, continuity equation, and conservation laws 389-405
L13,H3

Thu.

Nov.06 Stokes theorem, Dirac Delta function: Generalized functions as equivalence classes of certain sequences of functions. 405-409
Q3

  Fri.

Nov.07    
L14

Tue.

Nov.11 Delta function defined on R^n, Properties of the Dirac Delta function: Laplacian of 1/r 439-442, and Handout 6
L15

Thu.

Nov.13 Delta function is even, scaling property of the delta function, derivative of a generalized function, an integral representation of the delta function Handout 6
L16

Tue.

Nov.18 A series representation of the delta function, complex and real Fourier series, Dirichlet’s theorem on the existence of Fourier series expansion of periodic functions (without proof), an example: step function 415-432 
L17,H4

Thu.

Nov.20 Graphical demonstration of the convergence of Fourier series for a step function, differentation of Fourier series, Fourier series for arbitrary intervals, Parseval’s identity for Fourier series; Fourier transform and inverse Fourier transform, intregral transforms and their linearity 433-437, 442-443
Q4

  Mon.

Nov.24    
L18

Tue.

Nov.25 Fourier transform of the derivatives of a function, application of Fourier transform in solving linear ODEs, Parseval’s identity for Fourier transform, Fourier transform in higher dimensions 450-453
L19

Thu.

Nov.27 Review of Linear algebra: Real and complex vector spaces, subspaces, linear independence, span, basis, linear operator, matrix representation of linear operators, invertible operators, examples 241-250, 282-285
L20 Tue. Dec.02 Expressing the vector spaces R^n and C^n as function spaces. Inner product on C^n, L^2 inner product, Fourier transformation as a basis transformation.  
L21,H5 Thu. Dec.04 Stationary points of a functional, Euler-Lagrange eqn., Geodesics in Plane, Geodesics in a sphere 775-781
Q5  Fri. Dec.05    
    Dec.09 Holiday Week  
L22 Tue. Dec.16 Brachistochrone problem, Functional Derivative, Stationary points of a functional of several variable, Least action principle in mechanics. 781, 788-789
L23 Thu. Dec.18 Calculus of variations in the presence of constraints, Shape of a uniform cable joining two towers; Functions of a single complex variable: Continuous and differentiable functions 785-786, 824-827
L24 Tue. Dec.23 Analytic and entire functions., Cauchy-Riemann conditions (proof of necessity and sufficiency for analyticity of the function, examples of analytic functions (z^2, 1/z, sin z, ln z), implication for solving the Laplace eqn in 2-dim. 827-835
L25 Thu. Dec.25 Cauchy-Riemann conditions for the derivative of an analytic function, Contour integrals, Cauchy’s theorem (proof using Green’s thm in plane), Cauchy’s integral formula, Laurent Series 845-855
E2  Mon. Dec.29    
L26 Tue Dec.30 Poles and essential singularities, Residue theorem, determination of the order and the residue of a function at a pole, examples, zeros of a analytic functions 837-839, 855-860
L27

Tue.

Jan. 06 Application of the residue theorem in evaluating angular and improper real integrals 861-865
L28,H6

Thu.

Jan. 08 Application of the residue theorem in evaluating other types of improper real integrals 865-867
Q6

Fri

Jan. 09    

Note: The pages from the textbook listed above may not include some of the subjects covered in the lectures.

Abbreviations: L:= Lecture, H:=Homework, Q:=Quiz, E:=Exam