367,075 research outputs found
Cayley graphs generated by small degree polynomials over finite fields
We improve upper bounds of F. R. K. Chung and of M. Lu, D. Wan, L.-P. Wang,
X.-D. Zhang on the diameter of some Cayley graphs constructed from polynomials
over finite fields
Extension of a theorem of Duffin and Schaeffer
Let be linearly
recurrent sequences whose associated eigenvalues have arguments in
and let , where
for each . We prove that if
is bounded in a sector of its disk of convergence, it is a rational
function. This extends a very recent result of Tang and Wang, who gave the
analogous result when the sequence takes on values of finitely many
polynomials.Comment: 2 page
Expertise effects in memory recall: A reply to Vicente and Wang
This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.In the January 1998 Psychological Review, Vicente and Wang propose a "constraint attunement hypothesis" to explain the large effects of domain expertise upon memory recall observed in a number of task domains. They claim to find serious defects in alternative explanations of these effects which their theory overcomes. Re-examination of the evidence shows that their theory is not novel, but has been anticipated by those they criticize, and that other current published theories of the phenomena do not have the defects Vicente and Wang attribute to them. Vicente and Wang's views reflect underlying differences (a) about emphasis upon performance versus process in psychology, and (b) about how theories and empirical knowledge interact and progress with the development of a science
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