Algebraic number theory

Rational reciprocity law

In number theory, a rational reciprocity law is a reciprocity law involving residue symbols that are related by a factor of +1 or –1 rather than a general root of unity. As an example, there are rational biquadratic and octic reciprocity laws. Define the symbol (x|p)k to be +1 if x is a k-th power modulo the prime p and -1 otherwise. Let p and q be distinct primes congruent to 1 modulo 4, such that (p|q)2 = (q|p)2 = +1. Let p = a2 + b2 and q = A2 + B2 with aA odd. Then If in addition p and q are congruent to 1 modulo 8, let p = c2 + 2d2 and q = C2 + 2D2. Then (Wikipedia).

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Richard Taylor "Reciprocity Laws" [2012]

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Dividing rational expressions

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From playlist How to Divide Rational Expressions #Rational

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From playlist How to Divide Rational Expressions #Rational

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Dividing rational expressions

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From playlist How to Divide Rational Expressions #Rational

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Divide two rational expressions by simplifying

Learn how to divide rational expressions. A rational expression is an expression in the form of a fraction, usually having variable(s) in the denominator. Recall that to divide by a fraction, we multiply by the reciprocal of the fraction. The same rule applies when we want to divide by a r

From playlist How to Divide Rational Expressions #Rational

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Related pages

Quartic reciprocity | Reciprocity law