Results 91 to 100 of about 20,503 (203)
Hyperbolic reflections on pell's equation
Journal of Number Theory, 1989 It was conjectured by \textit{N. C. Ankeny}, \textit{E. Artin} and \textit{S. Chowla} [Ann. Math., II. Ser. 56, 479-493 (1952; Zbl 0049.306)] that the fundamental solution \((x_ 0,y_ 0)\) to the Pellian equation \(x^ 2- py^ 2=-1\) (p a prime congruent to 1 modulo 4) satisfies p \(\nmid y_ 0\). In an attempt to understand the nature of this problem, the
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Protection from Chronic Musculoskeletal Pain: A Scoping Review
European Journal of Pain, Volume 30, Issue 4, April 2026.ABSTRACT Background and Objective Research in the management of chronic musculoskeletal pain often focuses on negative factors associated with poor outcomes. In contrast, strengths‐based approaches attempt to identify factors associated with positive outcomes, referred to as protective factors.
Barry E. Moore +10 more
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Strategic Management Journal, Volume 47, Issue 4, Page 1161-1207, April 2026.Abstract Research Summary We examine political affiliation's role in venture team formation and success. Using data from Crunchbase and L2 on 1125 US‐based startups, we investigate political homophily in team assembly and its association with startup outcomes.
Balázs Kovács, Tim Sels
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Solving constrained Pell equations [PDF]
Mathematics of Computation, 1998 Consider the system of Diophantine equations x 2 − a y 2 = b x^2 - ay^2 = b , P ( x , y ) = z 2 P(x,y) = z^{2} , where P
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The Impacts of Removing College Entrance Exams: Evidence From the Test‐Optional Movement
Southern Economic Journal, Volume 92, Issue 4, Page 935-955, April 2026.ABSTRACT Before 2020, around 250 four‐year colleges and universities adopted a test‐optional application procedure that allowed students to apply for admission without submitting college entrance exam score. Many schools adopted this procedure to encourage greater racial and socioeconomic diversity.
Brianna Felegi
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Extremal fixed points and Diophantine equations
Journal of High Energy PhysicsThe coupling constants of fixed points in the ϵ expansion at one loop are known to satisfy a quadratic bound due to Rychkov and Stergiou. We refer to fixed points that saturate this bound as extremal fixed points.
Christopher P. Herzog +3 more
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Disasters, Volume 50, Issue 2, April 2026.Abstract The construction of bandals (bamboo walls) is a widely practised climate adaptation initiative in Bangladesh, embodying community agency. This article interrogates how it can also represent locally‐led maladaptation—adaptive efforts that inadvertently sustain or exacerbate the very risks they seek to address.
Hyeonggeun Ji, Rawnak Jahan Khan Ranon
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Variable social organization and breeding system of a social parrot revealed by genetic analysis
Ibis, Volume 168, Issue 2, Page 451-464, April 2026.Social organization and contributions to reproduction vary widely within and between species that breed in groups. Such variation often arises from the process of group formation, which drives patterns of relatedness and hence the degree of social conflict and co‐operation between group members.
Francesca S. E. Dawson Pell +4 more
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, 2019 We made a mistake regarding applying A. Smith's methods, in particular eq.
Knight, Erick, Xiao, Stanley Yao
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Human and Intellectual Capital Spending Efficiency and Efficacy: Evidence from U.S. Universities
Journal of Business Finance &Accounting, Volume 53, Issue 2, Page 970-997, April 2026.ABSTRACT We analyze the efficiency and efficacy of human and intellectual capital investment to better understand the effects of social investment. Existing literature in the corporate setting lacks analysis on the impact of human and intellectual capital investment, likely due to data scarcity.
Christopher S. Armstrong +3 more
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