The purpose of this study was to test measurement invariance of the WISC-IV factorial structure between genders. Both 10 and 15 subtest sets were tested on a nationally-representative sample of 2200 children (males N = 1100; females N = 1100). Results from multisample analyses supported partial measurement invariance. Except for a few subtle discrepancies involving correlated error terms, the h...

Abstract Discrete Fenchel duality is one of the central issues in discrete convex analysis. The Fenchel-type min–max theorem for a pair integer-valued M $$^{\natural }$$ ♮ -convex functions generalizes formulas polymatroid intersection and valuated matroid intersection. In ...

Introduction. The main objects of study in this paper are the commutative separable algebras over a commutative ring. Noncommutative separable algebras have been studied in [2]. Commutative separable algebras have been studied in [1] and in [2], [6] where the main ideas are based on the classical Galois theory of fields. This paper depends heavily on these three papers and the reader should con...

‎in this paper, a new class of fuzzy sets called fuzzy strongly ${{g}^{*}}$-closed sets is introduced and its properties are investigated. moreover, we study some more properties of this type of closed spaces.

We show that cores of ideals do not preserve the inclusion. Huneke and Swanson[2] raised the question of whether, given integrally closed ideals I ⊂ I ′ in a ring R, it is necessarily true that core(I) ⊂ core(I ). Hyry and Smith [4, Corollary 5.5.1] gave a partial answer. The purpose of this note is to show that the answer is no in general. Although the simplest counterexample is a principal id...