On the gaps between zeros of trigonometric polynomials
classification
🧮 math.CA
keywords
everytrigonometricballcasescloseddiameterdimensionalfinite
read the original abstract
We show that for every finite symetric set S of integer vectors, every real trigonometric polynomial on the d dimensional torus with spectrum in S has a zero in every closed ball of diameter D, where D is the sum over S of 1 over 4 times the L2 norm of the vector. We investigate tightness in some special cases.
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