Esi, AyhanSubramanian, NagarajanOzdemir, M. KemalManivannan, Kaliappan2026-06-192026-06-1920262147-625Xhttps://hdl.handle.net/20.500.12899/5007In this article we introduce Tribonacci sequence spaces S33 (T) derived by the domain of a newly defined regular Tribonacci matrix. We give some topological properties inclusion relation obtain the Schauder basis and determine the various duals of the new spaces. Finally, we give some geometric properties of the space S33 (T). © 2026, Prof. Dr. Mehmet Zeki SARIKAYA. All rights reserved.eninfo:eu-repo/semantics/closedAccessSchauder BasisTribonacci Sequence SpacesTriple Analytic SequenceTriple Entire SequencesThe Domain of A Regular Tribonacci Matrix Defined by Triple Sequence Spaces of S33Article1411691802-s2.0-105039848491Q3