Search Results - "Christiansen, Jacob"

Jet feedback and the photon underproduction crisis in simba by Christiansen, Jacob F, Davé, Romeel, Sorini, Daniele, Anglés-Alcázar, Daniel

“…ABSTRACT We examine the impact of black hole jet feedback on the properties of the low-redshift intergalactic medium (IGM) in the simba simulation, with a…”
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Extremal Polynomials and Sets of Minimal Capacity by Christiansen, Jacob S., Eichinger, Benjamin, Rubin, Olof

“…This article examines the asymptotic behavior of the Widom factors, denoted $${\mathcal {W}}_n$$ W n , for Chebyshev polynomials of finite unions of Jordan…”
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Asymptotics of Chebyshev Polynomials. IV. Comments on the Complex Case by Christiansen, Jacob S., Simon, Barry, Zinchenko, Maxim

“…We make a number of comments on Chebyshev polynomials for general compact subsets of the complex plane. We focus on two aspects: asymptotics of the zeros and…”
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Finite-Gap CMV Matrices: Periodic Coordinates and a Magic Formula by Christiansen, Jacob S, Eichinger, Benjamin, VandenBoom, Tom

“…Abstract We prove a bijective unitary correspondence between (1) the isospectral torus of almost-periodic, absolutely continuous CMV matrices having fixed…”
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Asymptotics of Chebyshev polynomials, V. residual polynomials by Christiansen, Jacob S., Simon, Barry, Zinchenko, Maxim

“…We study residual polynomials, R x 0 , n ( e ) , e ⊂ R , x 0 ∈ R \ e , which are the degree at most n polynomials with R ( x 0 ) = 1 that minimize the sup norm…”
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Filled Julia Sets of Chebyshev Polynomials by Christiansen, Jacob Stordal, Henriksen, Christian, Pedersen, Henrik Laurberg, Petersen, Carsten Lunde

“…We study the possible Hausdorff limits of the Julia sets and filled Julia sets of subsequences of the sequence of dual Chebyshev polynomials of a non-polar…”
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Lieb–Thirring inequalities for complex finite gap Jacobi matrices by Christiansen, Jacob S., Zinchenko, Maxim

“…We establish Lieb–Thirring power bounds on discrete eigenvalues of Jacobi operators for Schatten class complex perturbations of periodic and more generally…”
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Lieb–Thirring Inequalities for Finite and Infinite Gap Jacobi Matrices by Christiansen, Jacob S., Zinchenko, Maxim

“…We establish Lieb–Thirring power bounds on discrete eigenvalues of Jacobi operators for Schatten class perturbations under very general assumptions. Our…”
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Julia Sets of Orthogonal Polynomials by Christiansen, Jacob Stordal, Henriksen, Christian, Pedersen, Henrik Laurberg, Petersen, Carsten Lunde

“…For a probability measure with compact and non-polar support in the complex plane we relate dynamical properties of the associated sequence of orthogonal…”
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Finite gap Jacobi matrices: An announcement by Christiansen, Jacob S., Simon, Barry, Zinchenko, Maxim

“…We consider Jacobi matrices whose essential spectrum is a finite union of closed intervals. We focus on Szegő’s theorem, Jost solutions, and Szegő asymptotics…”
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Spectral Properties of a q-Sturm–Liouville Operator by Brown, B. Malcolm, Christiansen, Jacob S., Schmidt, Karl Michael

“…We study the spectral properties of a class of Sturm-Liouville type operators on the real line where the derivatives are replaced by a q -difference operator…”
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Poster 271 Differences in Outcomes between Patients Who Did and Did Not Go to Inpatient Rehabilitation 3 Months Post Injury by Warren, Ann Marie, Driver, Simon, Christiansen, Jacob, Reynolds, Megan, Bennett, Monica, Borsh, Sarah, Hamilton, Rita G.

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A moment problem and a family of integral evaluations by Christiansen, Jacob S., Mourad E. H. Ismail

“…We study the Al-Salam--Chihara polynomials when q>1. Several solutions of the associated moment problem are found, and the orthogonality relations lead to…”
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Asymptotics of Chebyshev polynomials, I: subsets of R by Christiansen, Jacob S., Simon, Barry, Zinchenko, Maxim

“…We consider Chebyshev polynomials, T n ( z ) , for infinite, compact sets e ⊂ R (that is, the monic polynomials minimizing the sup -norm, | | T n | | e , on e…”
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Dynamics in the Szegő class and polynomial asymptotics by Christiansen, Jacob S.

“…We introduce the Szegő class, Sz(E), for an arbitrary Parreau–Widom set E ⊂ ℝ and study the dynamics of its elements under the left shift. When the direct…”
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Indeterminate moment problems related to birth and death processes with quartic rates by Christiansen, Jacob S.

“…We consider indeterminate symmetric moment problems related to birth and death processes with quartic rates. The Nevanlinna matrices are presented and the…”
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The physical nature of circumgalactic medium absorbers in Simba by Appleby, Sarah, Davé, Romeel, Sorini, Daniele, Cui, Weiguang, Christiansen, Jacob

“…ABSTRACT We study the nature of the low-redshift circumgalactic medium (CGM) in the Simba  cosmological simulations as traced by ultraviolet absorption lines…”
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Asymptotics of Chebyshev polynomials, II: DCT subsets of R by Christiansen, Jacob S., Simon, Barry, Yuditskii, Peter, Zinchenko, Maxim

“…We prove Szego[double acute]-Widom asymptotics for the Chebyshev polynomials of a compact subset of ℝ which is regular for potential theory and obeys the…”
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Szegő's theorem on Parreau–Widom sets by Christiansen, Jacob S.

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Asymptotics of Chebyshev polynomials, I: subsets of by Christiansen, Jacob S, Simon, Barry, Zinchenko, Maxim

“…(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image).We consider Chebyshev polynomials, ..., for infinite, compact sets ... (that is,…”
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