A Proof of the Continued Fraction Identity π/4=Kn=1((n1)2/(2n1))-\pi/4 = {\rm K}_{n=1}^{\infty}\bigl((n-1)^2\,/\,{-(2n-1)}\bigr)

This paper provides a self-contained analytic proof of the continued fraction identity π/4=Kn=1((n1)2/(2n1))-\pi/4 = {\rm K}_{n=1}^{\infty}\bigl((n-1)^2\,/\,{-(2n-1)}\bigr) by transforming the classical Gauss continued fraction for arctan(z)\arctan(z) evaluated at z=1z=-1 and demonstrates its super-exponential convergence advantage over the Gregory–Leibniz series.

Chao WangTue, 10 Ma🔢 math

Predicting Mersenne Prime Exponents Using Euler's Quadratic Polynomial C(n) = n^2 + n + 41 with Nearest-Integer Rounding

This paper proposes the Wright-Euler Mersenne Exponent Hypothesis, which utilizes Euler's quadratic polynomial C(n)=n2+n+41C(n) = n^2 + n + 41 combined with nearest-integer rounding to identify candidate exponents for Mersenne primes, demonstrating a significantly higher accuracy and lower error rate compared to exponential regression models while effectively narrowing the search space for GIMPS testing.

JohnK Wright VTue, 10 Ma🔢 math

Green-Function and Information-Geometric Correspondences Between Inverse Eigenvalue Loci of Generalized Lucas Sequences and the Mandelbrot Set

This numerically driven study establishes a robust multi-scale framework demonstrating that the inverse eigenvalue loci of generalized Lucas sequences exhibit a striking low-distortion geometric and potential-theoretic correspondence with the boundary of the Mandelbrot set, revealing shared structural organization across geometric, harmonic, and statistical levels.

Arturo Ortiz-TapiaTue, 10 Ma🔢 math