q-Taylor theorems, polynomial expansions, and interpolation of entire functions
q-Taylor theorems, polynomial expansions, and interpolation of entire functions
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DOI:
10.1016/s0021-9045(03)00076-5
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发表时间:
2003-07
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影响因子:
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通讯作者:
M. Ismail;D. Stanton
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文献类型:
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作者:
M. Ismail;D. Stanton
We establish q-analogues of Taylor series expansions in special polynomial bases for functions analytic in bounded domains and for entire functions whose maximum modulus M(r;f) satisfies | ln M(r;f)|⩽A ln2r . This solves the problem of constructing such entire functions from their values at [aqn+q−n/a]/2, for 0<q<1. Our technique is constructive and gives an explicit representation of the sought entire function. Applications to q-series identities are given.