Rado's Theorem on vector space

Document Type : Original Article

Authors
1 Department of Pure Mathematics,Faculty of Mathematical Sciences, guilan, Iran.
2 Department of Pure Mathematics, Faculty of Mathematical Sciences, University of Guilan, Rasht, Iran
10.22034/maco.5.2.8
Abstract
In this paper, we investigate partition regularity of matrices over vector spaces where the matrix entries consist of linear transformations on the vector space. The paper also examines the existence of monochromatic solutions for matrix entries of linear transformations, which generalizes Rado's theorem.Our main results establish that matrices satisfying these conditions are not only partition regular but also preserve solutions within large combinatorial sets, such as central sets. Furthermore, we present a counterexample involving affine maps, demonstrating a limitation of these results and highlighting the necessity of the linearity assumption. This work bridges combinatorial number theory and linear algebra, offering a functional-analytic perspective on Ramsey-type problems.

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[1] N. Hindman, I. Leader, and D. Strauss, Image partition regular matrices-bounded solutions and preservation of largeness, Discrete Math. 242 (2002), 115-144.
[2] N. Hindman and D. Strauss, Image Partition Regular Matrices – Bounded Solutions and Other Notions of Largeness, Discrete Mathematics,Volume 242, Issues 1–3,(2002)115-144.
[3] N.H indman and I.Leader, Image partition regularity of matrices, Combinatorics, Probability and Computing, (2008), 233-240.
[4] N. Hindman and D. Strauss, Algebra in the Stone-Cech Compactification ˘ , Theory and Application, second edition, de Gruyter, Berlin, 2011.
[5] N. Hindman and D. Strauss, Image partition regularity of matrices over commutative semigroups, Topology and its Applications 259 (2019): 179-202.
[6] N. Hindman and D. Strauss, Image partition regular matrices and concepts of largeness,New York J. Math. 26 (2020) 230–260.
[7] N. Hindman and D. Strauss, Image partition regular matrices and concepts of largeness, II, Topology Proceedings 61, (2023) 49-76.
[8] J. Keshavarzian and M. A. Tootkaboni, Image partition regularity of matrices whose entries are homomorphisms, Semigroup Forum 97(2) (2018) 244–250.
[9] Rado, R. (1933). On systems of linear homogeneous equations having the property that any finite coloring of the natural numbers contains a monochromatic solution. Duke Mathematical Journal, 1(2), 175-185.