Recent content by Terrell

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    Raymond George Vickson Sept 19 1942- May 13 2019

    😞😞😞😞😞😞😞😫😫😭 my condolences
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    Relation between components and path-components of ##X##

    I haven't studied examples, yet. Thanks as you were helpful for pointing this out!
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    Relation between components and path-components of ##X##

    I meant ##C## is a connected component of ##X##. I assumed that if the path ##f## in ##P## is inside the connected subspace ##f([a,b]) \subset C##, then ##P \subset C##; which I think now is insufficient. Is this what you were trying to point out that is deficient? Thanks!
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    Relation between components and path-components of ##X##

    Homework Statement Theorem: If ##X## is a topological space, each path component of ##X## lies in a component of ##X##. If ##X## is locally path connected, then the components and the path components of ##X## are the same. I need help locating errors in my proof. Please help. Homework...
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    I How to properly understand finite group theory

    I think I will have to agree with you here. This eased some self-doubts. Thanks! I do get some of these. Maybe I am just feeling a bit too impatient.
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    I How to properly understand finite group theory

    what is this abstract intuition? Do you mind illustrating some basic examples of this? thank you.
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    I How to properly understand finite group theory

    I do have a fair amount of visual/geometric understanding of groups, but when I start solving problems I always wind up relying on my algebraic intuition, i.e. experience with forms of symbolic expression that arise from theorems, definitions, and brute symbolic manipulation. I even came up with...
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    I Images of elements in a group homomorphism

    I was not sure it was out of pure convenience. Thanks!
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    I Images of elements in a group homomorphism

    Why does the image of elements in a homomorphism depend on the image of 1? Why not the other generators?
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    Find the Value of z in z^{1+i}=4 using Logarithms

    Homework Statement Find ##z## in ##z^{1+i}=4##. Is my solution correct Homework Equations ##\log(z_1 z_2)=\log(z_1)+\log(z_2)## such that ##z_1, z_2\in \{z\in\Bbb{C} : (z=x+iy) \land (x\in\Bbb{R}) \land -\infty \lt y \lt +\infty\}## ##re^{i\theta}=r(\cos\theta + i\sin\theta)## The Attempt at a...
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    How Do You Solve a Complex Integral Using Cauchy-Goursat's Theorem?

    Just to have closure. I'll put the entire solution here. By letting ##z=e^{i\theta}## and ##dz=ie^{i\theta}d\theta##. we have \begin{align} \frac{1}{ie^{i\theta}}\int_{c}\cos^2(\frac{\pi}{6}+2e^{i\theta})ie^{i\theta}d\theta = \frac{1}{i}\int_{c}\frac{\cos^2(\frac{\pi}{6}+2z)}{z}dz \end{align}...
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    How Do You Solve a Complex Integral Using Cauchy-Goursat's Theorem?

    Got it! Thank you, I think I can handle this from here. Sorry :sorry: if I am taking a while, I am multi-problem solving right now :nb). Exam is tomorrow.:eek:
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    Laurent expansion of ##ze^{1/z}##

    I would be outrage! These are comprehensive exams and they don't get returned to us. :mad:
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    How Do You Solve a Complex Integral Using Cauchy-Goursat's Theorem?

    What is holonomic? Did you meant holomorphic? I googled holonomic and it exists and it means something else. Yes, I meant formula - sorry. But, the formula is applicable right?
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    Laurent expansion of ##ze^{1/z}##

    I find it hard to believe they put this on a past exam. It's suppose to be a test of understanding, not puzzles. I'll try my hand at this again later, I'm working on other problems for the moment. Thank you!
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