Golmankhaneh, Alireza KhaliliŞevli, HamdullahTavares, DinaJørgensen, Palle E. T.2025-07-182025-07-182025-05-28Khalili Golmankhaneh, A., Şevli, H., Tavares, D. et al. Extending Dirac and Faddeev-Jackiw Formalisms to Fractal First -Order Lagrangian Systems. Complex Anal. Oper. Theory 19, 90 (2025). https://doi.org/10.1007/s11785-025-01718-21661-82541661-8262http://hdl.handle.net/10400.8/13714This paper presents the foundational concepts of fractal calculus before generalizing the Dirac Constraint Formalism and the Faddeev-Jackiw Formalism for first -order Lagrangian systems in fractal spaces with non-integer dimensions. We provide a detailed analysis of the generalization process, highlighting the theoretical framework and key results, including the extended structure of the constraint systems in these Lagrangian formulations. Specific examples are discussed to demonstrate the practical application of the generalized formalism and to validate the consistency of our results. Moreover, graphical visualizations are included to enhance clarity, offering a visual interpretation of the findings and illustrating the relationship between the theory and its real-world implications.engFractal Dirac Constraint FormalismFractal Faddeev-Jackiw Formalismα-order Lagrangian systemsjournal article10.1007/s11785-025-01718-2