7,806 research outputs found
Non-real zeros of linear differential polynomials in real meromorphic functions
It is shown that if or is a real entire function of infinite order
of growth, with only real zeros, then has infinitely many
non-real zeros for any .Comment: updated 27/09/1
The usefulness of Skylab/EREP S-190 and S-192 imagery in multistage forest surveys
The author has identified the following significant results. The RMSE of point location achieved with the annotation system on S190A imagery was 100 m and 90 m in the x and y direction, respectively. Potential gains in sampling precision attributable to space derived imagery ranged from 4.9 to 43.3 percent depending on the image type, interpretation method, time of year, and sampling method applied. Seasonal variation was significant. S190A products obtained in September yielded higher gains than those obtained in June. Using 100 primary sample units as a base under simple random sampling, the revenue made available for incorporating space acquired data into the sample design to estimate timber volume was as high as $39,400.00
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