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» Monotonicity of zeros of Jacobi polynomials
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JAT
2007
103views more  JAT 2007»
13 years 10 months ago
Monotonicity of zeros of Jacobi polynomials
Denote by xn,k(α, β), k = 1, . . . , n, the zeros of the Jacobi polynomial P (α,β) n (x). It is well known that xn,k(α, β) are increasing functions of β and decreasing func...
Dimitar K. Dimitrov, Fernando R. Rafaeli
NA
2007
98views more  NA 2007»
13 years 10 months ago
Conjectured inequalities for Jacobi polynomials and their largest zeros
Inequalities are conjectured for the Jacobi polynomials P (α,β) n and their largest zeros. Special attention is given to the cases β = α − 1 and β = α. Key words. Jacobi po...
Walter Gautschi, Paul Leopardi
NA
2007
81views more  NA 2007»
13 years 10 months ago
Positive weight quadrature on the sphere and monotonicities of Jacobi polynomials
In 2000, Reimer proved that a positive weight quadrature rule on the unit sphere Sd ⊂ Rd+1 has the property of quadrature regularity. Hesse and Sloan used a related property, ca...
Paul C. Leopardi
NA
2008
78views more  NA 2008»
13 years 10 months ago
Luigi Gatteschi's work on asymptotics of special functions and their zeros
A good portion of Gatteschi's research publications--about 65%--is devoted to asymptotics of special functions and their zeros. Most prominently among the special functions st...
Walter Gautschi, Carla Giordano
ISCAS
1993
IEEE
105views Hardware» more  ISCAS 1993»
14 years 3 months ago
Maximally flat FIR filters
The existence of nonsymmetric generalized half-band lowpass and highpass FIR filters with maximally flat magnitude and group delay characteristics is proved. Like their linear-p...
Todor Cooklev, Akinori Nishihara