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Basel, Hankel, and a recent proof of ζ(5) irrationality
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1
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140
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October 7, 2026
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Gravitational waveform from radial infall at the third-and-half post-Newtonian order
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1
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78
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October 5, 2026
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Sparrow problem
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0
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40
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October 4, 2026
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Directional derivatives and movement on the air
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0
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40
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October 3, 2026
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Directional derivatives and gradient
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0
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57
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October 2, 2026
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Derived from a scalar field
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0
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31
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October 1, 2026
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The hidden geometry of Hopf: how the prey nullcline decides where oscillations can be born
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1
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104
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September 25, 2026
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An intuitive exploration of OpenAI's Navier–Stokes singularity construction (for the $1M Millennium Prize Problem)
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4
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3253
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September 25, 2026
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Area of a revolution surface when rotating a sinusoid function
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0
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46
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September 24, 2026
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How to make NDSolve solve this apparently easy DE system?
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8
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182
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September 23, 2026
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Is my new mean for elementary asymmetric functions with singularities existent and non-equivalent to their Cauchy Principal Value?
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3
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214
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September 22, 2026
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Taking an arbitrary derivative doesn't simplify
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3
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82
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September 21, 2026
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Orthogonal net on a helicoidal surface
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0
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35
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September 20, 2026
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Is this a new identity? quarter-Gamma ratio
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0
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131
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September 19, 2026
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Salzer's method for a quick-and-dirty numerical evaluation of inverse Laplace transforms
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0
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43
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September 17, 2026
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Numerical inverse Laplace transform
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1
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154
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September 3, 2026
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How to convert Taylor series denominators to factorials (n!)?
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1
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132
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September 1, 2026
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Exponential representation of the Jacobi elliptic functions using the Jacobi amplitude function
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0
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168
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August 30, 2026
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Open quantum systems: Lindblad dynamics, quantum trajectories, and feedback
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1
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519
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August 28, 2026
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Mathematical Games: colors and combinatorics
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1
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386
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August 28, 2026
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Closed form of 3 integrals
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1
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270
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August 26, 2026
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Clohessy-Wiltshire input-output model calibrated to Hubble and Endeavour STS-61 data
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1
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258
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August 26, 2026
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Wong–Zakai regularization for continuous quantum measurement with NDSolve
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1
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379
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August 19, 2026
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Analytical dynamics with Lagrange and Hamilton
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1
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383
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August 19, 2026
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Duffing equation for spring model y"+y+ay^3=0
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2
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273
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August 18, 2026
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Unexpected result using Integrate
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4
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346
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August 16, 2026
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Solve the integral Cos(x)/x at the interval (0,infinite)
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4
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9924
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August 15, 2026
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Closed form of Sum[Zeta[2k]/k^2,{k,1,Infinity}]
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7
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305
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August 15, 2026
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Hirota multi-soliton solutions of the resonant nonlinear Schrödinger equation & Bohmian dynamics
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1
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334
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August 13, 2026
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Cannot solve simple equation
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1
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271
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August 12, 2026
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