Science teachers in a summer physics class at Southeast Missouri State University relied on shadows Thursday to calculate the Earth's circumference during the summer solstice, the longest day of the ...
In the article, we prove that the function x→ ( 1−x ) p K( x ) is logarithmically concave on (0, 1) if and only if p ≥ 7/32, the function x→K( x )/log( 1+4/ 1−x ) is convex on (0, 1) and the function ...