A. B. Kempe, On the Geographical Problem of the Four Colours, American Journal of Mathematics, Vol. 2, No. 3 (Sep., 1879), pp. 193-200 ...

This paper tests the relationship between average return and risk for New York Stock Exchange common stocks. The theoretical basis of the tests is the "two-parameter" portfolio model and models of ...

The Review of Economics and Statistics is an 84-year old general journal of applied (especially quantitative) economics. Edited at Harvard University's Kennedy School of Government, The Review has ...

This is a preview. Log in through your library . Journal Information Econometrica publishes original articles in all branches of economics - theoretical and empirical, abstract and applied, providing ...

This is a preview. Log in through your library . Journal Information The Review of Economics and Statistics is an 84-year old general journal of applied (especially quantitative) economics. Edited at ...

Language Arts is a professional journal for elementary and middle school teachers and teacher educators. It provides a forum for discussions on all aspects of language arts learning and teaching, ...

Mladen Bestvina, Michael Handel, Train Tracks and Automorphisms of Free Groups, Annals of Mathematics, Vol. 135, No. 1 (Jan., 1992), pp. 1-51 ...

Annals of Mathematics, a distinguished journal of research papers in pure mathematics, was founded in 1884. Annals of Mathematics is published bimonthly with the cooperation of Princeton University ...

ASUMAN OKTAÇ, MARÍA TRIGUEROS, AVENILDE ROMO, APOS THEORY, For the Learning of Mathematics, Vol. 39, No. 1 (March 2019), pp. 33-37 ...