Proof of the Lindemann-Weierstrass Theorem

In summary, the Lindemann-Weierstrass Theorem is a mathematical theorem that states that the number e raised to any non-zero algebraic power is transcendental. It was first proven by Ferdinand von Lindemann in 1882 and independently discovered by Karl Weierstrass in 1885. The theorem has important implications in mathematics, including providing a proof for the transcendence of e and applications in areas such as complex numbers and algebraic geometry. It is also closely related to the famous problem of squaring the circle, as it proves the impossibility of constructing pi using only rational numbers and basic geometric operations. Other applications of the theorem include proving the transcendence of other mathematical constants and connections to the Riemann hypothesis.
  • #1
smize
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I am wanting to find a good proof of the Lindemann-Weierstrass Theorem.

Most importantly I need the part that states that eα is transcendental where α ≠ 0 is algebraic.

What are good online resources or books for the proof?

Thank-you.
 
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  • #2
Ivan Niven has a nice little book called "Irrational Numbers" which contains a relatively elementary proof. There is also a proof in Jacobson's "Basic Algebra I," but it uses more algebraic machinery.
 
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What is the Lindemann-Weierstrass Theorem?

The Lindemann-Weierstrass Theorem is a mathematical theorem that states that for any non-zero algebraic number a, the number ea is transcendental. This means that e raised to any non-zero algebraic power will always be a transcendental number, meaning it cannot be expressed as the root of a polynomial equation with rational coefficients.

Who discovered the Lindemann-Weierstrass Theorem?

The theorem was first proven by the German mathematician Ferdinand von Lindemann in 1882. However, it was independently discovered and proven by the German mathematician Karl Weierstrass in 1885.

Why is the Lindemann-Weierstrass Theorem important?

The theorem has several important implications in mathematics. It provides a proof for the transcendence of e, which was previously only known through intuition and conjecture. It also has applications in other areas of mathematics, such as the study of complex numbers and algebraic geometry.

How is the Lindemann-Weierstrass Theorem related to the famous problem of squaring the circle?

The Lindemann-Weierstrass Theorem is closely related to the famous problem of squaring the circle, which involves constructing a square with the same area as a given circle using only a compass and a straightedge. The theorem proves that this is impossible, as it shows that the number pi (which is the ratio of a circle's circumference to its diameter) is a transcendental number. This means that it cannot be constructed using only rational numbers and basic geometric operations.

Are there any other applications of the Lindemann-Weierstrass Theorem?

Yes, the theorem has been used to prove the transcendence of other important mathematical constants, such as the number pi2 and the Euler-Mascheroni constant. It has also been applied in the study of elliptic functions and modular forms, and has connections to the Riemann hypothesis in number theory.

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