Download or read book Scientia Magna, Vol. 7, No. 4, 2011 written by Zhang Wenpeng and published by Infinite Study. This book was released on with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers on Smarandache function S(n), Erdos-Smarandache numbers, generalized intuitionistic fuzzy contra continuous functions and its applications, the asymptotic properties of triangular base sequence, linear operators preserving commuting pairs of matrices over semirings, two inequalities for the composition of arithmetic functions, compactness and proper maps in the category of generated spaces, and similar topics. Contributors: R. Ma, Y. Zhang, R. Dhavaseelan, M. Dragan, M. Bencze, Q. Yang, G. Mirhosseinkhani, C. Fu, S. S. Billing, B. Hazarika, and others.