On the zeros of the q-analogue exponential function
- 7 June 1994
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 27 (11) , 3857-3881
- https://doi.org/10.1088/0305-4470/27/11/034
Abstract
An asymptotic formula for the zeros, zn, of the entire function eq(x) for q<1* approximately=0.14, these zeros collide in pairs and then move off into the complex z plane. They move off as (and remain) a complex conjugate pair. The zeros of the ordinary higher derivatives and of the ordinary indefinite integrals of eq(x) vary with q in a similar manner. Properties of eq(z) for z complex and for arbitrary q are deduced. For 0q(z) is an entire function of order 0. By the Hadamard-Weierstrass factorization theorem, infinite product representations are obtained for eq(z) and for the reciprocal function eq-1(z). If q not=1, the zeros satisfy the sum rule Sigma n=1infinity (1/zn)=-1.Keywords
This publication has 16 references indexed in Scilit:
- The q-analogue quantized radiation field and its uncertainty relationsPhysics Letters A, 1992
- A q-analogue of Bargmann space and its scalar productJournal of Physics A: General Physics, 1991
- On coherent states for the simplest quantum groupsLetters in Mathematical Physics, 1991
- A completeness relation for the q-analogue coherent states by q-integrationJournal of Physics A: General Physics, 1990
- On the q oscillator and the quantum algebra suq(1,1)Journal of Physics A: General Physics, 1990
- Quantum lie superalgebras and q-oscillatorsPhysics Letters B, 1990
- The q-deformed boson realisation of the quantum group SU(n)qand its representationsJournal of Physics A: General Physics, 1989
- On q-analogues of the quantum harmonic oscillator and the quantum group SU(2)qJournal of Physics A: General Physics, 1989
- The quantum group SUq(2) and a q-analogue of the boson operatorsJournal of Physics A: General Physics, 1989
- Basic circular functionsIndagationes Mathematicae, 1981