About/FAQ
Paul’s personal blog.
I am not the first to dream up the term “mathemusician.” Not only is it too similar to the famous “mathemagician,” others who claimed the title long ago might indeed better fit the name. Try Googling for some results.
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What are the purposes of this blog?
- A testing platform for Web 2.0 technologies
- Serve as “personal updates” for families and friends
- Record and archive random knowledge acquired in life
- Help keeping up language skills
What are NOT the purposes of this blog?
- Get famous or make big bucks
- Please the readers
- Complain and unload the frustrations in life
How do you navigate the gallery posts?
- Click on any image to pop it out. Then, hover the pointer over the image and you should see slideshow control buttons.
- Click-drag to move the image around. For large images, try making the browser window bigger.
- Click on the image again to close.
On the music posts, there are links that just takes me to the top of the page.
- The audio players degrade to empty links when Flash is not enabled.
- Enable/install Flash, or add mathemusician.net to whitelist if using a Flash blocker.
Why are some contents in English and others in Chinese?
- Either language comprises a significant portion of myself, so I simply cannot limit myself to writing in one and not the other.
I don’t get those weird titles on the right.
- In mathematics we often care about, and try to prove one way or the other, whether certain mathematical object exists. That is often not an easy question. On the contrary, it is extremely easy to tell if a certain text string exists on this blog…
- arXiv.org: an archive for scientific papers in digital format.
- Category theory is one of the most abstract subjects in mathematics.
What is an automorphism?
- Homomorphism: A structure-preserving map from an object to another.
- Isomorphism: A homomorphism that is bijective, meaning that it goes both ways.
- Endomorphism: A homomorphism, where the target is itself.
- Automorphism: An endomorphism that is an isomorphism.
Last Updated: 1/1/2010