For α in (1,2) the expected 2q-moment of the normalized sum of d_α(n) f(n) is bounded by (log x)^{2q(α-1)} over a power of log log x, uniformly for q up to 1/α.
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In angle-dependent 2D branching Brownian motion with b(θ) = 1 - β|θ|^α + O(θ²) near θ=0 for α ∈ (2/3,2), the maximum M_t satisfies that M_t - m(t) is tight with m(t) = √2 t - (ϑ₁/√2) t^{(2-α)/(2+α)} - c log t, where ϑ₁ comes from the first eigenvalue of an associated operator.
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Partial sums of random multiplicative functions with supercritical divisor twists
For α in (1,2) the expected 2q-moment of the normalized sum of d_α(n) f(n) is bounded by (log x)^{2q(α-1)} over a power of log log x, uniformly for q up to 1/α.
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Polynomial slowdown in an angle-dependent 2d branching Brownian motion
In angle-dependent 2D branching Brownian motion with b(θ) = 1 - β|θ|^α + O(θ²) near θ=0 for α ∈ (2/3,2), the maximum M_t satisfies that M_t - m(t) is tight with m(t) = √2 t - (ϑ₁/√2) t^{(2-α)/(2+α)} - c log t, where ϑ₁ comes from the first eigenvalue of an associated operator.