Matching Tag: hermite-pade-approximation
Let f ∈ C ( z , w ) f\in\mathbb C(z,w) f ∈ C ( z , w ) and f ∞ ∈ H ( ∞ ) f_\infty\in\mathscr H(\infty) f ∞ ∈ H ( ∞ ) . Assume the setting of the subsection in which E ⊂ R E\subset\mathbb R E ⊂ R , E ∩ F = ∅ E\cap F=\varnothing E ∩ F = ∅ , and F F F is symmetric with re…
Let f ∈ C ( z , w ) f\in\mathbb C(z,w) f ∈ C ( z , w ) , let w ∞ w_\infty w ∞ be the specified element of the function w w w , and let f ∞ ∈ H ( ∞ ) f_\infty\in\mathscr H(\infty) f ∞ ∈ H ( ∞ ) be the corresponding element of f f f . For each…
Let f f f belong to the Laguerre class L \mathscr L L , represented by … where α j ∈ R ∖ Z \alpha_j\in\mathbb R\setminus\mathbb Z α j ∈ R ∖ Z , e j ∈ R e_j\in\mathbb R e j ∈ R , and e 1 < ⋯ < e 2 q e_1<\dots<e_{2q} e 1 < ⋯ < e 2 q . Assume that 1 , f , f 2 1,f,f^2 1 , f , f 2 …
Angelesco uniqueness conjecture. The measure μ = λ 1 + λ 2 \mu=\lambda_1+\lambda_2 μ = λ 1 + λ 2 is the only positive Borel measure in the plane satisfying these inequalities and μ ( C ) = 2 \mu(\mathbb C)=2 μ ( C ) = 2 . This un…
Let f = ( f 1 , … , f d ) {\bf f}=(f_1,\ldots,f_d) f = ( f 1 , … , f d ) and m = ( m 1 , … , m d ) ∈ Z + d ∖ { 0 } {\bf m}=(m_1,\ldots,m_d)\in\mathbb{Z}_+^d\setminus\{{\bf 0}\} m = ( m 1 , … , m d ) ∈ Z + d ∖ { 0 } , and suppose that the denominator Q n , m Q_{n,\bf m} Q n , m is unique for all sufficiently la…