Poincaré half-space model. Take the open upper half-space \[\mathbb{H}^n := \{(x_1,\dots,x_n)\in\mathbb{R}^n \mid x_n 0\}\] equipped with the Riemannian metric whose components on the coordinate tangent vectors are \[g_{ij}(p) \;=\; g_p\!\left(\frac{\partial}{\partial x_i}\bigg|_p,\; \frac{\partial}{\partial x_j}\bigg|_p\right) \;=\; \frac{1}{p_n^2}\,\delta_{ij}.\] Geodesics are semicircles (or rays) orthogonal to the boundary hyperplane \(\{x_n = 0\}\).
The police department said it requested the order to ensure officers "receive information from the Medical Examiner before the public".
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「這是我第六次晉級奧運決賽，能保持百分之百的晉級率令我自豪，」谷愛凌向BBC體育頻道表示。「這絕非易事。奧運會激發人們的極致潛能，也暴露最糟糕的一面。能夠承受這種壓力，是我真正引以為傲之處。」
第十一条 船舶抵押权，是指抵押权人对于抵押人提供的作为债务担保的船舶，在债务人不履行到期债务或者发生当事人约定的实现抵押权情形时，依法享有的就该船舶优先受偿的权利。
The idea behind the Kinesis Form Split Touchpad Keyboard is pretty ergonomic: put the trackpad between the two halves and minimize travel for your mouse hand. The distance between the two puts your elbows at a comfortable distance and keeps your wrist nearly in-line with your forearms. The build is excellent, with low profile mechanical switches that feel smooth and just the right amount of clacky. The trackpad is responsive, but gestures only work with Windows computers. Even dragging and dropping doesn’t work on a Mac here, so I don’t see Apple users getting much use out of the board. I also found myself wishing for the slightest rotation of the keys — though they’re a good distance apart, a slight angle would keep my wrists fully unbent. There’s no tenting or negative tilt either, both of which could help a bit more, ergonomically speaking.