Archives for Mathematical Physics
Examples of Taylor SEries versus Fourier Series
Intro Which works better for a given function - a Taylor expansion or a Fourier Expansion? This post explores the pros and cons of each, using specific examples. Examples of…
Taylor Series versus Fourier Series for a function
. Domain of Representation Taylor Series: Works best for local approximations around a single point (Maclaurin series if centered at zero). Fourier Series: Represents a function over an entire interval…
Functions ONLY definable by their integrals – with applications
Functions ONLY Defined by Their Integrals 1. The Gamma Function \( \Gamma(x) \) \( \Gamma(x) = \int_0^\infty t^{x-1} e^{-t} \, dt \), for \( x > 0 \). Applications: Generalization…
Functions Defined by Their Integrals – with applications
Functions Defined by Their Integrals Functions that are defined by their integrals often arise in fields like physics, probability theory, and engineering, where the direct formulation of a function may…
Finite Abelian Groups and Applications to Quantum Physics
Finite Abelian Groups and Applications to Quantum Physics What Are Finite Abelian Groups? A finite abelian group is a group \( G \) with the following properties: Closure: For any…
Galois Groups and Applications to Quantum Mechanics
Finite Galois Groups and Applications in Quantum Mechanics Examples of Finite Galois Groups 1. The Cyclic Group \( C_n \) Example: Consider the extension \( \mathbb{Q}(\alpha_n)/\mathbb{Q} \), where \( \alpha_n…
Borel Algebras and Applications in Physics
Borel Algebra and Applications in Physics Borel Algebra and Applications in Physics Examples of Borel Algebras Real Line (\( \mathbb{R} \)): The Borel algebra on \( \mathbb{R} \) is generated…
Analytic Functions on a Punctured Disk with Applications to Quantum Mechanics
Analytic Functions in Quantum Mechanics and Quantum Field Theory The following examples illustrate how different analytic functions defined on a punctured disk can be applied in quantum mechanics (QM) and…
Quantum Mechanics and the Transformation 1\(z-a)
Quantum Mechanics and the Transformation \( \frac{1}{z - a} \) Transformations of the form \( \frac{1}{z - a} \), especially in the context of complex analysis, appear in quantum mechanics,…
The Dirichlet problem and quantum entanglement
Dirichlet Problem and Quantum Entanglement The Dirichlet problem and quantum entanglement are concepts from different branches of mathematics and physics, respectively, but there are indirect connections through the underlying…