The first Weyl algebra is , the algebra of polynomial-coefficient differential operators in one variable.
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The Weyl algebra, typically denoted \( A_n \), is a type of non-commutative algebra that plays a significant role in various areas of mathematics, particularly in algebraic geometry, representation theory, and mathematical physics. Specifically, the Weyl algebra is defined over a field (often the field of complex numbers or rational numbers) and is generated by polynomial rings in several variables subject to certain relations.