bisymmetric

bisymmetric

(ˌbaɪsɪˈmɛtrɪk) or

bisymmetrical

adj
1. (Botany) botany showing symmetry in two planes at right angles to each other
2. (Biology) (of plants and animals) showing bilateral symmetry
ˌbisymˈmetrically adv
bisymmetry n
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References in periodicals archive
Wang, "Bisymmetric and centrosymmetric solutions to systems of real quaternion matrix equations," Computers & Mathematics with Applications, vol.
The solutions X to the linear matrix equation with special structures have been widely studied, for example, symmetric solutions (see [1-5]), R-symmetric solutions (see [6]), (R, S)-symmetric solutions (see [7, 8]), bisymmetric solutions (see [9-12]), centrosymmetric solutions (see [13]), and other general solutions (see [14-23]).
Hence substituting [R.sup.(-q)] = - [R.sup.(q)], [Z.sub.-n] = [Z.sub.n] and [[??].sub.-q(B)] = [[??].sub.q(B)] in the matrix of (31) leads to a bisymmetric matrix.
Hajarian, On the generalized bisymmetric and skew-symmetric solutions of the system of generalized Sylvester matrix equations, Linear and Multilinear Algebra, 59 (2011) 1281-1309.
Majumdar [1] gave the formula for n-th term of the following sequences: Smarandache cyclic natural determinant sequence, Smarandache cyclic arithmetic determinant sequence, Smarandache bisymmetric natural determinant sequence and Smarandache bisymmetric arithmetic determinant sequence.
[1.] Gilbert, B., "The MICRO-MIXER: A highly linear variant of the Gilbert mixer using a bisymmetric Class-AB input stage," IEEE Journal of Solid-State Circuits, Vol.
A matrix X = ([x.sub.ij]) [member of] [R.sub.nxn] is said to be bisymmetric if [x.sub.ij] = [x.sub.ji] = [x.sub.n-i+1,n-j+1] for all 1 [less than or equal to] i,j [less than or equal to] n.
By extending the idea of conjugate gradient method, Dehghan and Hajarian [12] constructed an iterative algorithm to solve (1) with q = p over generalized bisymmetric matrices.
In [1], Murthy introduced the concept of the Smarandache Cyclic Determinant Natural Sequence, the Smarandache Cyclic Arithmetic Determinant Sequence, the Smarandache Bisymmetric Determinant Natural Sequence, and the Smarandache Bisymmetric Arithmetic Determinant Sequence.
Dehghan and Hajarian constructed finite iterative algorithms to solve several linear matrix equations over (anti)reflexive [22-24], generalized centrosymmetric [25, 26], and generalized bisymmetric [27, 28] matrices.
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