TY - JOUR T1 - On Stakhov Functions and New Hyperboloid Surfaces AU - Daşdemir, Ahmet PY - 2025 DA - June Y2 - 2025 DO - 10.47086/pims.1653932 JF - Proceedings of International Mathematical Sciences JO - PIMS PB - İbrahim ÇANAK WT - DergiPark SN - 2717-6355 SP - 16 EP - 27 VL - 7 IS - 1 LA - en AB - This paper presents an investigation into the generalization of hyperbolic Fibonacci sine and cosine functions, as well as Fibonacci spirals. Initially, we establish the main definitions and theoretically model them, listing several special cases. We then uncover fundamental results, including the De Moivre and Pythagorean formulas. Based on these new definitions, we introduce new classes of three-dimensional hyperboloid surfaces and compute their Gauss and mean curvatures. Notably, we demonstrate that these surfaces are geodesic. KW - Hyperbolic Fibonacci function KW - Hyperbolic Stakhov function KW - Stakhov hyperboloid KW - Gauss curvature KW - Fibonacci hyperboloid CR - T. Koshy, Fibonacci and Lucas Numbers with Applications, John Wiley and Sons, Inc., Hoboken, NJ, 2019. CR - S. Vajda, Fibonacci and Lucas Numbers the Golden Section, Ellis Horrowood Limited Publ., England, 1989. CR - G. E. Bergum, A. N. Philippou, and A. F. Horadam, Applications of Fibonacci numbers, Kluwer Academic, Washington, 1998. CR - A. P. Stakhov, I. S. Tkachenko, Hyperbolic Fibonacci trigonometry, Rep. Ukr. Acad. Sci. 208 (1993) 9–14. CR - A. P. Stakhov, Hyperbolic Fibonacci and Lucas functions: a new mathematics for the living nature, ITI, Vinnitsa, 2003. CR - A. P. Stakhov, B. Rozin, On a new class of hyperbolic functions, Chaos Solitons Fractals, 23 (2005) 379–389. CR - A. P. Stakhov and B. Rozin, The Golden Shofar, Chaos Solitons Fractals 26(3) (2005) 677–684. CR - A. P. Stakhov, B. Rozin, The “golden” hyperbolic models of Universe, Chaos Solitons Fractals 34(2) (2007) 159–171. CR - S. Falc´on and ´A. Plaza, The k-Fibonacci hyperbolic functions, Chaos Solitons Fractals, 38(2) (2008) 409–420. CR - A. Da¸sdemir, T. D. S¸ent¨urk, Z. ¨Unal, On recursive hyperbolic functions in Fibonacci-Lucas sense, Hacettepe Journal of Mathematics and Statistics 49(6) (2020) 2046–2062. CR - A. F. Horadam, Generating functions for powers of a certain generalized sequence of numbers, Duke. Math. J. 32(3) (1965) 437–446. UR - https://doi.org/10.47086/pims.1653932 L1 - https://dergipark.org.tr/en/download/article-file/4673147 ER -