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  1. What is the isometry and isometry group? - Mathematics Stack …

    May 14, 2018 · 4 An isometry is a shape preserving transformation. Rotations and reflections are two examples. A dilation is not an isometry because it changes the size of the shape. An …

  2. geometry - Isometry Definition - Mathematics Stack Exchange

    Oct 9, 2017 · I have been reading a paper regarding Screw Theory and have come across the term "Isometry". A quick Baidu(I'm currently in China) turned up the following: Given a metric …

  3. Symmetry vs isometry - Mathematics Stack Exchange

    Sep 2, 2019 · In context of geometry and points in a plane Wikipedia describes symmetry as a type of invariance - the property that something does not change under a set of …

  4. Understanding isometric spaces - Mathematics Stack Exchange

    I don’t know of any general method for finding an isometry between isometric spaces; if you can recognize two spaces as being isometric, you probably already have a good idea of what an …

  5. What is the difference between isometric and unitary operators on …

    An isometry, on the other hand, only requires that the columns are orthonormal, but not that they form a basis. It trivially follows that any unitary is also an isometry. In other words, an isometry …

  6. What is the difference between isometry and rigid motion?

    Oct 26, 2016 · My teacher says they are the same thing because transformation preserves distance and measurement of angles, but isometry has opposite and direct isometries, where …

  7. Why are isometries continuous? - Mathematics Stack Exchange

    If $f$ is an isometry (=distance preserving) then you can use $\delta = \varepsilon$ to prove $f$ is continuous.

  8. How are isometries one-to-one? - Mathematics Stack Exchange

    Apr 4, 2023 · An isometry preserves distances, so since distinct points are at a positive distance from one another, they are mapped to distinct points in the image. (In particular, an isometry …

  9. Isometries of $\mathbb {R}^n$ - Mathematics Stack Exchange

    May 2, 2011 · Yeah I thought that too at first, but you can show an isometry of $\mathbb {R}^n$ fixing the origin is linear without assuming that it's surjective. The key is the inner product, …

  10. What does it mean that the determinant of an isometry is 1?

    Mar 2, 2025 · 1 What I mean by the title's question is that the matrix's determinant depends on the basis that you use as reference for an application. So if I have an exercise that says prove that …