Labor and the common welfare : labor, movements and labor problems in America, comp. and ed. by Fayes Robbins /

Mode of access: Internet.

An introductory course of quantitative chemical analysis, with explanatory notes and stoichiometrical problems

Mode of access: Internet.

How to fly; the pilot and his problems,

A development from the author's Flight school manual of the Naval air station at Pensacoln, Fla., written in 1926, later revised and published in 1928 under title: Practical flight tranining.

Sociology and ethics; the facts of social life as the source of solutions for the theoretical and practical problems of ethics,

Mode of access: Internet.

Nationality and its problems,

Mode of access: Internet.

Regularity and relaxed problems of minimizing biharmonic maps into spheres

For n >= 5 and k >= 4, we show that any minimizing biharmonic map from Omega subset of R-n to S-k is smooth off a closed set whose Hausdorff dimension is at most n - 5. When n = 5 and k = 4, for a parameter lambda is an element of [0, 1] we introduce lambda-relaxed energy H-lambda of the Hessian energy for maps in W-2,W-2 (Omega; S-4) so that each minimizer u(lambda) of H-lambda is also a biharmonic map. We also establish the existence and partial regularity of a minimizer of H-lambda for lambda is an element of [0, 1).