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  1. Understanding L1 and L2 norms - Mathematics Stack Exchange

    Feb 6, 2021 · I am not a mathematics student but somehow have to know about L1 and L2 norms. I am looking for some appropriate sources to learn these things and know they work and what are their …

  2. What is the norm of a complex number? [duplicate]

    Jan 24, 2013 · In number theory, the "norm" is the determinant of this matrix. In that sense, unlike in analysis, the norm can be thought of as an area rather than a length, because the determinant can …

  3. What is the difference between the Frobenius norm and the 2-norm of …

    For example, in matlab, norm (A,2) gives you induced 2-norm, which they simply call the 2-norm. So in that sense, the answer to your question is that the (induced) matrix 2-norm is $\le$ than Frobenius …

  4. Quadratic form involving Frobenius norm - Mathematics Stack Exchange

    Mar 18, 2026 · Quadratic form involving Frobenius norm Ask Question Asked 25 days ago Modified 24 days ago

  5. functional analysis - The sampling way of discrete Sobolev norm ...

    Feb 10, 2026 · Yes, as indicated by daw, because your discrete Sobolev norm only includes the values of the function evaluated at the discrete mesh points, it is always possible to construct a nonzero …

  6. Prove that the Euclidean norm is not differentiable at the origin

    Dec 17, 2025 · Maybe to help emphasize @peek-a-boo's comment: the limit definition of the derivative can hold at a point - withouth a formula that holds 'elsewhere' and that you could want to invoke …

  7. How are $C^0,C^1$ norms defined - Mathematics Stack Exchange

    Aug 8, 2013 · How are $C^0,C^1$ norms defined? I know $L_p,L_\\infty$ norms but are the former defined.

  8. Estimate norm of convolution operator - Mathematics Stack Exchange

    Mar 2, 2024 · Not exactly, sorry. I already know it is bounded, all is left is to find/estimate the operator norm more closely

  9. normed spaces - Simple explanation of uniform norm / sup-norm ...

    Dec 17, 2017 · I've read the Uniform Norm Wikipedia page, but my most of it went over my head. What is the sup-norm in simple and / or intuitive terms? Are there any good examples which illustrate it?

  10. Definition of $L_\infty$ norm - Mathematics Stack Exchange

    Jul 7, 2014 · Definition of $L_\infty$ norm Ask Question Asked 11 years, 9 months ago Modified 8 years, 9 months ago