• East Asian mathematical journal
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• 제28권1호
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• pp.93-99
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• 2012

Dealternating numbers and alternation numbers measure the distance between the link and an alternating links. In the present article, we show that classical link invariants; the determinant, signature and Alexander polynomial can not detect the almost alternativity of links.

• East Asian mathematical journal
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• 제28권1호
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• pp.13-23
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• 2012

In this paper, we present the geometric Hermite interpolation for planar Pythagorean-hodograph cubics for some general Hermite data.

• East Asian mathematical journal
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• 제26권5호
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• pp.641-647
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• 2010

Various characterizations of (m, n)-fold p-ideals of weak BCC-algebras are presented.

• East Asian mathematical journal
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• 제23권2호
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• pp.197-206
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• 2007

The purpose of this paper is to show some results of M. Bresar and J. Vukman concerning orthogonal derivations of semiprime rings in [3] for (${\sigma},\;{\tau}$)-derivations and generalized (${\sigma},\;{\tau}$)-derivations in $\Gamma$-rings.

• East Asian mathematical journal
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• 제23권2호
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• pp.207-212
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• 2007

We describe the class of invertible matrices T such that $TAT^{-1}$ is EPr, for a given EPr matrix A of order n. Necessary and sufficient condition is determined for $TAT^{-1}$ to be EP for an arbitrary matrix A of order n.

• East Asian mathematical journal
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• 제21권2호
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• pp.171-181
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• 2005

In this paper we investigate some more properties of of $S_3$-algebras. We also prove that the class of $S_3$-algebras is contained in the class of commutative BCI-algebras.

• East Asian mathematical journal
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• 제14권2호
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• pp.317-320
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• 1998

The main result is that the connection form in the orthonormal frame bundle by the Levi-Civita connection over a Riemannian symmetric space is a Yang-Mills connection

• East Asian mathematical journal
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• 제15권2호
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• pp.301-312
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• 1999

In this paper, we study the nonlinear ergodic retraction theorems for an asymptotically nonexpansive semigroup with nonconvex and nonclosed domains in Hilbert spaces.

• East Asian mathematical journal
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• 제14권2호
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• pp.321-327
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• 1998

There have been various proofs of the Legendre duplication formula for the Gamma function. Another proof of the formula is given here and a brief history of the Gamma function is also provided.

• East Asian mathematical journal
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• 제31권1호
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• pp.127-134
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• 2015

We give a rth conic regular functions with conic quaternion variables in $\mathbb{C}^2$ and obtain a hyper-conjugate harmonic function of conic regular function in conic quaternions in the sense of Clifford analysis.