Preface
3 Unforgettable Childhood
Primary Education
Revolutionary Mathematicians
Coming of Age through the Terror
Institut de France: Science Above All
5 Lessons from l’École Polytechnique
Lagrange’s Lecture Notes 1795-1797
M. Le Blanc Metamorphoses into Mlle. Germain
A Young Scholar Emerges
7 Chladni and His Acoustic Experiments
The Prize of Mathematics
11 Euler and the Bernoullis
Euler and the Mechanics of Elastic Bodies
Foundation of Elasticity Theory
Sound and Vibrating Bodies
13 Sophie Germain and Her Biharmonic Equation
First Hypothesis
Second Attempt: More Disappointment
Paris in 1814
Winning the Grand Prix de Mathématiques
A Rival Appears
The Germain-Lagrange Equation
17 Experiments with Vibrating Plates
Sophie Germain’s Experimental Research
19 Elasticity Theories After Germain
Navier’s Bending Equation
Cauchy and His Mathematical Formalism
Poisson and an Incorrect Prediction
Poisson-Germain-Navier Public Dispute
Kirchhoff’s Plate Theory
Ritz Method to Model Chladni’s Plates
23 Germain and Fermat’s Last Theorem
Number Theory: From Diophantus to Gauss
Sophie Germain and Gauss
Sophie Germain and Legendre
Sophie Germain's Theorem
Fermat’s Last Theorem after Germain
The Fermat-Wiles Theorem
Unsolved Problem in Number Theory
29 Pensées de Germain
31 Friends, Rivals, and Mentors
Carl Friedrich Gauss (1777-1855)
Joseph-Louis Lagrange (1736-1813)
Adrien-Marie Legendre (1752-1833)
Jean-Baptiste-Joseph Fourier (1768-1830)
Siméon-Denis Poisson (1781-1840)
Claude-Louis Navier (1785-1836)
Jean-Baptiste-Joseph Delambre (1749-1822)
Augustin-Louis Cauchy (1789-1857)
Guglielmo Libri, Count de Bagnano (1803-1869)
Leonhard Euler (1707-1783)
Archimedes of Syracuse (c. 287-212 B.C.)
37 The Last Years
Glorious Summer of 1830
41 Unanswered Questions
43 Princess of Mathematics
Women and Science Education
Sophie Germain’s Legacy
Sophie Germain Timeline
Sophie Germain Primes
List of Illustrations
Index