Whiting School of Engineering




Department of Applied Mathematics & Statistics

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Syllabus for the Introductory Exam

Problems in the exam will be drawn from the following three areas in roughly the following proportions

 

LINEAR ALGEBRA

Vectors & Analytic Geometry of Space
        Coordinate Systems in n-space
                n-Vectors
                Linear Dependence of n-vectors
                Length & Inner Product of n-vectors
                Outer/Cross Product of 3-vectors

Finite-Dimensional Vector Spaces
                n-dimensional Vectors Spaces Over R and C
                Linear Dependence & Generators
                Simultaneous Linear Equation, Gaussian elimination
                Bases & Dimensions
                Subspaces
                Inner Products; Schwarz Inequality
                Orthogonal Bases; Orthogonal Complements; Projections
                Dual Spaces
                Lines, Hyperplanes, Coordinate systems
                Distance; Polarization Identity

Linear Transformations and Matrices
                Linear Transformations; Elementary Properties (Image/Nullspace)
                Addition, Composition, Scalar Multiplication
                Matrices \& Linear Transformations
                Nonsingular Linear Transformations; Inverses
                Changes of Bases in Vector Spaces
                Similarity of Matrices
Special Types of Square Matrices (Symmetric, Orthogonal, Triangular etc.)
Elementary Matrices
                Rank of a Matrix

Determinants
                Definition & Elementary Properties
                Permutations & Uniqueness
                Minors; Cofactors; Evaluation of Determinants
                Applications (Dependence of Vectors; Volume of a Parallelopiped; Linear Equations)
                Determinants of Products & Inverses
Determinants of Special Types of Matrices

Bilinear and Quadratic Forms
Bilinear Mappings & Forms
                Quadratic Forms; Polarization
                Equivalence of Quadratic Forms; Congruence of Matrices
                Geometric Applications

Eigenvalues and Eigenvectors
                Definitions
                Similarity & Diagonal Matrices
                Orthogonal Reduction of Symmetric Matrices
                Eigenvalues of Special Types of Matrices (Unitary, Hermitian, etc.)
                Normal Matrices & Spectral Theorem
                Singular Values

References
Elements of Linear Algebra, by L. J. Paige and J. D. Swift (Ginn & Co, 1961)
Finite-Dimensional Vector Spaces, by P. R. Halmos (D. Van Nostrand, 1958)
Introduction to Linear Algebra, by S. Lang (Springer-Verlag UTM 1986)
Linear Algebra, by K. Jänich (Springer-Verlag UTM 1994).

 
PROBABILITY

Combinatorial analysis
Permutations
Combinations
Multinomial coefficients

Axioms of probability
Sample spaces and events
Axioms of probability
The uniform model
Probability as a continuous set function

Conditional probability and independence
Conditional probabilities
Bayes' theorem
Independent events

Random variables and their distributions
Random variables
Discrete random variables, Indicator functions
Expected value
Expectation of a function of a random variable
Variance
Distribution function
Probability mass function
Probability density function

Discrete univariate distributions
Bernoulli and binomial distributions
Geometric and negative binomial distributions
Poisson distributions
Hypergeometric distributions

Continuous univariate distributions
Uniform distributions
Normal distributions
Exponential distributions
Gamma distributions
Cauchy distributions
Change of variables

Multivariate distributions
Independent random variables
Convolution and sums of independent random variables
Conditional distributions
Change of variables
Multivariate normal distributions

Properties of expectation and related matters
Linearity of expectation
Covariance
Variance of a sum
Correlation
Conditional expectation and the law of total expectation
Conditional variance and the law of total variance
Conditional covariance and the law of total covariance
Conditional expectation and prediction
Moment generating functions

Inequalities and limit theorems
                Chebychev's and Markov's inequalities
Cauchy-Schwarz inequality
Jensen's inequality
Weak and strong laws of large numbers
Central limit theorem

References
A First Course in Probability, by S. Ross (Prentice Hall, 2001).
Essentials of Probability, by R. Durrett (Duxbury, 1993).

REAL ANALYSIS

Basic Set Theory
Sets & Functions
Boolean operations (unions, intersections, complements) and basic properties
De Morgan's laws
Product sets
Finite, countable and uncountable sets

The Real Line
Ordered Fields
Completeness & The Real Number System
Least Upper Bounds
Cauchy Sequences; Cluster Points; liminf and  limsup
Euclidean Space
Norms; Inner Products; Metrics
Complex Numbers

The Topology of Euclidean Space
Open & Closed Sets
                Accumulation Points; Interior, Closure and Boundary of a Set
                Sequences & Series in Euclidean Space; Completeness
                Compactness; Heine-Borel Theorem; Intersection of Nested Compact Sets
                Path-Connected & Connected Sets

Continuous Mappings
                Continuity; Images of Compact \& Connected Sets
                Operations on Continuous Mappings (Sums, Products, Compositions)
                Boundedness on Compact Sets
                Intermediate Value Theorem
                Uniform Continuity
                Elementary Differentiation & Integration

Uniform Convergence
Pointwise & Uniform Convergence
                The Weierstrass M-Test
                Differentiation & Integration of Series
                Elementary Functions (Exponential, Trigonometric, Hyperbolic)
                The Space of Continuous Functions
                Equicontinuity & the Arzela-Ascoli Theorem
Contraction Mapping Theorem
                Stone-Weierstrass Theorem
                Dirichlet & Abel Tests
                Power Series
                Cesaro & Abel Summability

Differentiable Mappings
Derivative Matrix; Continuity of Differentiable Mappings
                Differentiable Paths; Directional Derivatives
                Chain Rule; Product Rule
                The Mean-Value Theorem
                Higher Derivatives & Taylor's Theorem
                Maxima & Minima

Inverse & Implicit Function Theorems
Inverse Function Theorem
                Implicit Function Theorem
                Rectifiability of Curves and Surfaces; Existence Theorem for ODE's
                Morse Lemma
Constrained Extrema & Lagrange Multipliers

Integration Theory
Existence of the Riemann-Integral; Elementary Properties
                Fundamental Theorems of Calculus
Differentiation of Limits of Integration
                Interchange of Order of Integration (Fubini's theorem)
                Differentiation of Integrals with respect to a Parameter in the Integrand
                Change of Variables Theorem; Polar, Spherical and Cylindrical Coordinates
                Improper Integrals
                Elementary Numerical Quadrature (Midpoint, Trapezoidal, Simpson Rules)

Fourier Series
Inner Product Spaces; Orthogonal Families of Functions; Completeness
                Calculation of Fourier Coefficients
Convergence Theorems (Uniform for C1, Mean for L2)

Differential equations
Separable equations
Linear, homogeneous, constant coefficient equations

References
The Way of Analysis, by R. S. Strichartz. (Jones & Bartlett, 1995)
Elementary Classical Analysis, 2nd ed., by J. E. Marsden & M. J. Hoffman (W. H. Freeman, 1993)
Principles of Mathematical Analysis, 3rd ed., W. Rudin (McGraw Hill, 1976)