Appell–Bessel functions ArcTan and ArcTanh functions Bessel functions Catalan’s constant Chebyshev polynomials Dedekind sum Euler sums Euler’s pentagonal number theorem Fibonacci number Fox-Wright function Hadamard product Hankel determinant Hankel matrix Hardy space Jacobi’s triple-product identity Janowski functions Korovkin’s type theorem Lambert series Lucas number Mersenne number Pochhammer symbol and its extensions Ramanujan’s theta functions Riesz fractional derivative Rogers-Ramanujan continued fraction Rogers-Ramanujan identities Schur’s second partition theorem Schur’s, the Göllnitz-Gordon’s and the Göllnitz’s partition identities Sherman-Morrison-Woodbury formula Toeplitz matrix Trigamma function