A Banach space admits a locally uniformly rotund norm if its by Fabian M., Troyanski S. PDF

By Fabian M., Troyanski S.

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The fewer parallel planes there are in the room's surfaces, the less likely that there will be standing waves, so that room acoustics are generally improved by angling a wall or two, and/or the ceiling, when the room is being planned. Organ pipes are based on standing waves. ) STEREO and STEREO EFFECT Also see HUMAN HEARING) If a click is heard by both ears at once, it will appear to be straight ahead or behind the listener. If the sound reaches one ear slightly sooner, the sound will seem to emanate from that side.

This has in turn caused speaker manufacturers to become more and more interested in the high and low frequency response of their products. The improvement in records has also had beneficial effects on cartridge design. In turn, the improvement in cartridges allowed the recording industry to make yet another round of improvement through better hearing. This is, perhaps, the best example of symbiotic effect in audio. Also true, of course, with speakers and other components. The introduction of CD's and digital technology has accelerated this process even more.

W WAVELENGTH Inverse to frequency, waves are short at high frequencies and long at low frequncies. The corresponding range for 20 to 20,000 Hz is 50 feet to 1/2 inch. Wavelength is the distance from crest to crest, similar to ocean waves. ) WHITE NOISE and PINK NOISE NOISE is often used in testing speakers because it's easy to obtain. Also, a lot of companies like to use noise as a signal source when measuring specifications because it does not show up peaks in the frequency response as a pure tone would.

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A Banach space admits a locally uniformly rotund norm if its dual is a Vasak space by Fabian M., Troyanski S.


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