111 citations
6 papers
Magnetism of chromia
Siqi Shi, A. L. Wysocki, K. D. Belashchenko
The electronic structure and magnetism of chromia (corundum-type Cr2O3) are studied using full-potential first-principles calculations. The electronic correlations are included wit…
Modular Equations and Distortion Functions
G. D. Anderson, S. -L. Qiu, M. Vuorinen
Modular equations occur in number theory, but it is less known that such equations also occur in the study of deformation properties of quasiconformal mappings. The authors study t…
Ultimate Generalization to Monotonicity for Uniform Convergence of Trigonometric Series
Song-Ping Zhou, Ping Zhou, Dan-Sheng Yu
Chaundy and Jolliffe [4] proved that if is a non-increasing (monotonic) real sequence with , then a necessary and sufficient condition…
On L1 Convergence of Fourier Series of Complex Valued Functions
Rui-Jun Le, Song-Ping Zhou
In the present paper, we give a brief review of -convergence of trigonometric series. Previous known results in this direction are improved and generalized by establishing a…
On Relations among Fourier Coefficients and Sum-functions
Dan-Sheng Yu, Song-Ping Zhou
We generalize five theorems of Leindler on the relations among Fourier coefficients and sum-functions under the more general condition.
A new condition for the uniform convergence of certain trigonometric series
Rui-Jun Le, Song-Ping Zhou
The present paper proposes a new condition to replace both the (-regularly varying) quasimonotone condition and a certain type of bounded variation condition, and shows the same…