This research aims to investigate the consimilarity of hybrid number matrices and to develop solutions for matrix equations associated with these numbers. Hybrid numbers are an innovative algebraic structure that unifies dual, complex, and hyperbolic (perplex) number systems. These numbers are isomorphic to split quaternions and hold significant importance in mathematical theory and physical applications, especially in the context of non-commutative algebraic structures. The paper demonstrates how linear matrix equations associated with hybrid numbers, such as $ \mathbf{A\widetilde{\mathbf{X}}-XB} = \mathbf{C} $, can be solved by reducing them to Sylvester equations through real matrix representations. The concept of consimilarity, defined as a transformation preserving structural properties of matrices without requiring invertibility, is thoroughly examined. This concept is applied to analyze eigenvalues, diagonalization, and both linear and nonlinear matrix equations involving hybrid number matrices. By investigating the consimilarity of hybrid number matrices, the study introduces new algebraic methods and computational techniques, expanding classical results in matrix theory to hybrid numbers. This research not only advances theoretical insights into hybrid number systems but also opens avenues for practical applications in scientific and engineering fields.
Citation: Hasan Çakır. Consimilarity of hybrid number matrices and hybrid number matrix equations $ \mathrm{A\widetilde{\mathrm{X}}-XB} = \mathrm{C} $[J]. AIMS Mathematics, 2025, 10(4): 8220-8234. doi: 10.3934/math.2025378
This research aims to investigate the consimilarity of hybrid number matrices and to develop solutions for matrix equations associated with these numbers. Hybrid numbers are an innovative algebraic structure that unifies dual, complex, and hyperbolic (perplex) number systems. These numbers are isomorphic to split quaternions and hold significant importance in mathematical theory and physical applications, especially in the context of non-commutative algebraic structures. The paper demonstrates how linear matrix equations associated with hybrid numbers, such as $ \mathbf{A\widetilde{\mathbf{X}}-XB} = \mathbf{C} $, can be solved by reducing them to Sylvester equations through real matrix representations. The concept of consimilarity, defined as a transformation preserving structural properties of matrices without requiring invertibility, is thoroughly examined. This concept is applied to analyze eigenvalues, diagonalization, and both linear and nonlinear matrix equations involving hybrid number matrices. By investigating the consimilarity of hybrid number matrices, the study introduces new algebraic methods and computational techniques, expanding classical results in matrix theory to hybrid numbers. This research not only advances theoretical insights into hybrid number systems but also opens avenues for practical applications in scientific and engineering fields.
| [1] | S. Barnett, Matrices in control theory: with applications to linear programming, Kentucky: Van Nostrand Reinhold, 1971. |
| [2] |
G. Hewer, C. Kenney, The sensitivity of the stable Lyapunov equation, SIAM J. Control Optim., 26 (1988), 321–344. https://doi.org/10.1137/0326018 doi: 10.1137/0326018
|
| [3] | R. Horn, C. Johnson, Matrix analysis, Cambridge: Cambridge university press, 2012. https://doi.org/10.1017/CBO9780511810817 |
| [4] |
T. Jiang, M. Wei, On solutions of the matrix equations $X-AXB = C$ and $X-A\overline{X}B = C$, Linear Algebra Appl., 367 (2003), 225–233. https://doi.org/10.1016/S0024-3795(02)00633-X doi: 10.1016/S0024-3795(02)00633-X
|
| [5] |
T. Klimchuk, V. V. Sergeichuk, Consimilarity and quaternion matrix equations $AX-\widehat{X}B = C$, $X-A\widehat{X}B = C$, Spec. Matrices, 2 (2014), 180–186. https://doi.org/10.2478/spma-2014-0018 doi: 10.2478/spma-2014-0018
|
| [6] |
Y. Alagöz, K. H. Oral, S. Yüce, Split quaternion matrices, Miskolc Math. Notes, 13 (2012), 223–232. http://doi.org/10.18514/MMN.2012.364 doi: 10.18514/MMN.2012.364
|
| [7] |
F. Zhang, Quaternions and matrices of quaternions, Linear Algebra Appl., 251 (1997), 21–57. https://doi.org/10.1016/0024-3795(95)00543-9 doi: 10.1016/0024-3795(95)00543-9
|
| [8] | C. Flaut, Eigenvalues and eigenvectors for the quaternion matrices of degree two, An. St. Univ. Ovid. Co.-Mat., 10 (2002), 39–44. |
| [9] | L. Wolf, Similarity of matrices in which the elements are real quaternions, Bull. Amer. Math. Soc., 42 (1936), 737–743. |
| [10] |
Y. Hong, R. A. Horn, A canonical form for matrices under consimilarity, Linear Algebra Appl., 102 (1988), 143–168. https://doi.org/10.1016/0024-3795(88)90324-2 doi: 10.1016/0024-3795(88)90324-2
|
| [11] |
L. P. Huang, Consimilarity of quaternion matrices and complex matrices, Linear Algebra Appl., 331 (2001), 21–30. https://doi.org/10.1016/S0024-3795(01)00266-X doi: 10.1016/S0024-3795(01)00266-X
|
| [12] |
T. A. Loring, Factorization of matrices of quaternions, Expo. Math., 30 (2012), 250–267. https://doi.org/10.1016/j.exmath.2012.08.006 doi: 10.1016/j.exmath.2012.08.006
|
| [13] |
H. Kösal, M. Akyiğit, M. Tosun, On the consimilarity of split quaternions and split quaternion matrices, An. St. Univ. Ovid. Co.-Mat., 24 (2016), 189–207. http://doi.org/10.1515/auom-2016-0054 doi: 10.1515/auom-2016-0054
|
| [14] |
L. Kula, Y. Yayli, Split quaternions and rotations in semi Euclidean space $\mathbb{E}_{2}^{4}$, J. Korean Math. Soc., 44 (2007), 1313–1327. https://doi.org/10.4134/JKMS.2007.44.6.1313 doi: 10.4134/JKMS.2007.44.6.1313
|
| [15] |
M. Özdemir, A. Ergin, Rotations with unit timelike quaternions in Minkowski 3-space, J. Geom. Phys., 56 (2006), 322–336. https://doi.org/10.1016/j.geomphys.2005.02.004 doi: 10.1016/j.geomphys.2005.02.004
|
| [16] |
M. Özdemir, Introduction to hybrid numbers, Adv. Appl. Clifford Algebras, 28 (2018), 11. https://doi.org/10.1007/s00006-018-0833-3 doi: 10.1007/s00006-018-0833-3
|
| [17] |
M. Özdemir, Finding $n$-th roots of a $2\times 2$ real matrix using De Moivre's formula, Adv. Appl. Clifford Algebras, 29 (2019), 2. https://doi.org/10.1007/s00006-018-0919-y doi: 10.1007/s00006-018-0919-y
|
| [18] |
İ. Öztürk, M. Özdemir, Similarity of hybrid numbers, Math. Method. Appl. Sci., 43 (2020), 8867–8881. https://doi.org/10.1002/mma.6580 doi: 10.1002/mma.6580
|
| [19] |
İ. Öztürk, M. Özdemir, Elliptical rotations with hybrid numbers, Indian J. Pure Appl. Math., 55 (2024), 23–39. https://doi.org/10.1007/s13226-022-00343-5 doi: 10.1007/s13226-022-00343-5
|
| [20] |
H. Çakır, M. Özdemir, Hybrid number matrices, Filomat, 37 (2023), 9215–9227. https://doi.org/10.2298/FIL2327215C doi: 10.2298/FIL2327215C
|
| [21] | A. Householder, The theory of matrices in numerical analysis, New York: Dover Publications, 2006. |