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  2. Outline of algebra - Wikipedia

    en.wikipedia.org/wiki/Outline_of_algebra

    Algebra is one of the main branches of mathematics, covering the study of structure, relation and quantity. Algebra studies the effects of adding and multiplying numbers , variables , and polynomials , along with their factorization and determining their roots .

  3. Richard Rusczyk - Wikipedia

    en.wikipedia.org/wiki/Richard_Rusczyk

    Richard Rusczyk has both authored and co-authored several textbooks for students in grades 5–12, including Pre-algebra, Introduction to Algebra, Introduction to Geometry, and many others. During his studies at Princeton University, he also wrote the Art of Problem Solving Volumes 1 and 2 with Sandor Lehoczky. [citation needed]

  4. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    The quadratic formula, which concisely expresses the solutions of all quadratic equations The Rubik's Cube group is a concrete application of group theory. [26] Algebra is the art of manipulating equations and formulas. Diophantus (3rd century) and al-Khwarizmi (9th century) were the two main precursors of algebra.

  5. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...

  6. Variety (universal algebra) - Wikipedia

    en.wikipedia.org/wiki/Variety_(universal_algebra)

    This means that there is an injective set map i : S → F S that satisfies the following universal property: given any algebra A in V and any map k : S → A, there exists a unique V-homomorphism f : F S → A such that f ∘ i = k. This generalizes the notions of free group, free abelian group, free algebra, free module etc. It has the ...

  7. Algebraic variety - Wikipedia

    en.wikipedia.org/wiki/Algebraic_variety

    The twisted cubic is a projective algebraic variety.. Algebraic varieties are the central objects of study in algebraic geometry, a sub-field of mathematics.Classically, an algebraic variety is defined as the set of solutions of a system of polynomial equations over the real or complex numbers.

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