Let G = (V, E) be a connected graph with 2-connected blocks H1, H2, . . . , Hr. Motivated by the exponential distance matrix, Bapat and Sivasubramanian in [4] defined its product distance matrix DG and showed that det DG only depends on det DHi for 1 ≤ i ≤ r and not on the manner in which its blocks are connected. In this work, when distances are symmetric, we generalize this result to the Smith Normal Form of DG and give an explicit formula for the invariant factors of DG.
@article{bwmeta1.element.doi-10_1515_spma-2016-0005, author = {R. B. Bapat and Sivaramakrishnan Sivasubramanian}, title = {The Smith normal form of product distance matrices}, journal = {Special Matrices}, volume = {4}, year = {2016}, pages = {46-55}, zbl = {1338.15073}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_spma-2016-0005} }
R. B. Bapat; Sivaramakrishnan Sivasubramanian. The Smith normal form of product distance matrices. Special Matrices, Tome 4 (2016) pp. 46-55. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_spma-2016-0005/
[1] Bapat R. B. Resistance matrix and q-laplacian of a unicyclic graph. In Ramanujan Mathematical Society Lecture Notes Series, 7, Proceedings of ICDM 2006, Ed. R. Balakrishnan and C.E. Veni Madhavan (2008), pp. 63–72. | Zbl 1194.05030
[2] Bapat R. B., Lal A. K., Pati S. A q-analogue of the distance matrix of a tree. Linear Algebra and its Applications 416 (2006), 799–814.[WoS] | Zbl 1092.05041
[3] Bapat R. B., Raghavan T. E. S. Nonnegative Matrices and Applications. Encyclopedia of Mathematics and its Applications. Cambridge University Press, 1997. | Zbl 0879.15015
[4] Bapat R. B., Sivasubramanian S. Product Distance Matrix of a Graph and Squared Distance Matrix of a Tree. Applicable Analysis and Discrete Mathematics 7 (2013), 285–301. | Zbl 1299.05077
[5] Chebotarev P. A class of graph-geodetic distances generalizing the shortest-path and the resistance distances. Discrete Applied Math 159, Issue 5, (2011), 295–302. [2][WoS] | Zbl 1209.05068
[6] Chebotarev P. The graph bottleneck identity. Advances in Applied Mathematics 47, Issue 3, (2011), 403–413.[WoS] | Zbl 1232.05064
[7] Dealba L. M. Determinants and Eigenvalues. In Handbook of Linear Algebra, L. Hogben, Ed. Chapman & Hall CRC Press, 2007, ch. 4.
[8] Developers T. S. Sage Mathematics Software (Version 3.1.1), 2008. .
[9] Klein D. J., Randić M. Resistance distance. Journal of Mathematical Chemistry 12, Issue 1, (1993), 81–95.[WoS]
[10] Newman M. Integral Matrices. Academic Press, 1972. | Zbl 0254.15009
[11] Shiu W. C. Invariant factors of graphs associated with hyperplane arrangements. Discrete Mathematics 288 (2004), 135–148. | Zbl 1056.05120