Approximate solution to an equation with a high-degree polynomial
Jan 19, 2022 · Approximate solution to an equation with a high-degree polynomial Ask Question Asked 4 years, 2 months ago Modified 4 years, 2 months ago
When do spectrum and approximate point spectrum differ?
Aug 22, 2024 · For example the Wiki page says at some point that " It can be shown that the approximate point spectrum of a bounded multiplication operator equals its spectrum ", and the …
Prove that the approximate point spectrum is a subset of the spectrum
Aug 14, 2024 · A continuous linear operator is not invertible if it is not bounded from below, and since the spectrum consists of the $\lambda$ such that $ T- \lambda I$ is not injective, approximate …
Difference between "≈", "≃", and "≅" - Mathematics Stack Exchange
In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B...
real analysis - Understanding the notion of approximate tangent space ...
Feb 20, 2022 · 4 I am studying geometric measure theory, and I am having some trouble understanding how to deal with approximate tangent spaces. I would like an example/exhibition of an approximate …
Approximate unit/identity in Banach and or C*-algebra
Nov 1, 2022 · In Banach algebras and C*-algebras, the concept of approximate unit (or approximate identity) is defined as nets, rather than sequences. My question is, since the underlying space is …
spectral theory - Characterising the approximate point spectrum of a ...
Mar 9, 2025 · Characterising the approximate point spectrum of a bounded operator on a Banach space Ask Question Asked 1 year, 1 month ago Modified 1 year, 1 month ago
Approximation of $L^p$ functions by convolution of approximate …
Jul 27, 2020 · Approximation of $L^p$ functions by convolution of approximate identities Ask Question Asked 5 years, 8 months ago Modified 5 years, 8 months ago
calculus - Finding the number of terms needed to approximate a series ...
Nov 18, 2023 · Finding the number of terms needed to approximate a series with a given accuracy Ask Question Asked 2 years, 4 months ago Modified 2 years, 4 months ago
sequences and series - Approximating an Ellipse with Circular Arcs ...
Jun 21, 2024 · In general, if you want to approximate an ellipse with circular arcs, you need two consecutive arcs to have the same tangent at the common endpoint, to give a smooth enough curve.