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location UK; Sheffield, Cambridge, London.
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visits member for 3 years
seen 11 hours ago

Dec
20
accepted Could “$\infty$” be understood by taking the reciprocals of the Hyperreal numbers?
Nov
10
accepted Is the derivative of $\{x\}$ on $(0,1)$ always equal to $1$?
Oct
24
accepted Nature of the range of $e^x$
Oct
20
accepted Specific form of differential equation
Oct
16
accepted Quotient of two rational sequences and the nature of its limit
Oct
9
accepted Are these functions identical?
Sep
27
accepted Can I use the residue calculus here?
Sep
27
accepted A question on the Wronskian
Sep
22
accepted Bounds on the real and imaginary parts of the digamma function $\psi $
Sep
17
accepted When can I expect the derivative of an inequality to always hold true?
Sep
15
accepted Inverse Laplace Transform of $(s+1)/z^s$
Sep
11
accepted Useful device in complex analysis (Perron's formula)
Sep
8
accepted Is anything known about $2\pi$ integer multiple arguments of the cosine integral?
Aug
26
accepted Proof that $\zeta'(-2n)=(-1)^n\frac{(2n)!}{2(2\pi)^{2n}}\zeta(2n+1)$.
Aug
18
accepted Irrational number “test”?
Aug
12
accepted Evaluation of $\int_0^\infty \frac{(x^2+y^2)^{-s/2}}{e^{2\pi y}-1}\cos(s \arctan(y/x))dy$
Jul
9
accepted When is a limit of products not a product of limits?
May
23
accepted Evaluate $\int_a^s\frac{(t-s)^n}{t(t-z)^{n+1}}dt.$
Mar
26
accepted Why does this product diverge?
Feb
28
accepted Solution of “quadratic equation” involving functional coefficients.