# Non-Newtonian Mathematics Instead of Non-Newtonian Physics: Dark Matter and Dark Energy from a Mismatch of Arithmetics - Publikacja - MOST Wiedzy

## Non-Newtonian Mathematics Instead of Non-Newtonian Physics: Dark Matter and Dark Energy from a Mismatch of Arithmetics ### Abstrakt

Newtonian physics is based on Newtonian calculus applied to Newtonian dynamics. New paradigms such as ‘modified Newtonian dynamics’ (MOND) change the dynamics, but do not alter the calculus. However, calculus is dependent on arithmetic, that is the ways we add and multiply numbers. For example, in special relativity we add and subtract velocities by means of addition β1⊕β2=tanh(tanh−1(β1)+tanh−1(β2)), although multiplication β1⊙β2=tanh(tanh−1(β1)⋅tanh−1(β2)), and division β1⊘β2=tanh(tanh−1(β1)/tanh−1(β2)) do not seem to appear in the literature. The map fX(β)=tanh−1(β) defines an isomorphism of the arithmetic in X=(−1,1) with the standard one in R. The new arithmetic is projective and non-Diophantine in the sense of Burgin (Uspekhi Matematicheskich Nauk 32:209–210 (in Russian), 1977), while ultrarelativistic velocities are super-large in the sense of Kolmogorov (Technika Molodezhi 10:16–19 (11:30–33 in Russian), 1961). Velocity of light plays a role of non-Diophantine infinity. The new arithmetic allows us to define the corresponding derivative and integral, and thus a new calculus which is non-Newtonian in the sense of Grossman and Katz (Non-Newtonian calculus, Lee Press, Pigeon Cove, 1972). Treating the above example as a paradigm, we ask what can be said about the set X of ‘real numbers’, and the isomorphism fX:X→R, if we assume the standard form of Newtonian mechanics and general relativity (formulated by means of the new calculus) but demand agreement with astrophysical observations. It turns out that the observable accelerated expansion of the Universe can be reconstructed with zero cosmological constant if fX(t/tH)≈0.8sinh(t−t1)/(0.8tH). The resulting non-Newtonian model is exactly equivalent to the standard Newtonian one with ΩΛ=0.7, ΩM=0.3. Asymptotically flat rotation curves are obtained if ‘zero’, the neutral element 0X of addition, is nonzero from the point of view of the standard arithmetic of R. This implies f−1X(0)=0X>0. The opposition Diophantine versus non-Diophantine, or Newtonian versus non-Newtonian, is an arithmetic analogue of Euclidean versus non-Euclidean in geometry. We do not yet know if the proposed generalization ultimately removes any need of dark matter, but it will certainly change estimates of its parameters. Physics of the dark universe seems to be both geometry and arithmetic.

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### Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Foundations of Science nr 26, strony 75 - 95,
ISSN: 1233-1821
Język:
angielski
Rok wydania:
2021
Opis bibliograficzny:
Czachor M.: Non-Newtonian Mathematics Instead of Non-Newtonian Physics: Dark Matter and Dark Energy from a Mismatch of Arithmetics// Foundations of Science -Vol. 26, (2021), s.75-95
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s10699-020-09687-9
Weryfikacja:
Politechnika Gdańska

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