Results 51 to 60 of about 17,497 (108)
Pharmaceutical Statistics, Volume 25, Issue 1, January/February 2026.ABSTRACT Bayesian predictive probabilities of success (PPoS) use interim trial data to calculate the probability of trial success. These quantities can be used to optimise trial size or to stop for futility. In this paper, we describe a simulation‐based approach to compute the PPoS for clinical trials with competing event data, for which no specific ...
Chiara Micoli +5 more
wiley +1 more source
A C(K) Banach space which does not have the Schroeder-Bernstein property [PDF]
, 2011 We construct a totally disconnected compact Hausdorff space N which has clopen subsets M included in L included in N such that N is homeomorphic to M and hence C(N) is isometric as a Banach space to C(M) but C(N) is not isomorphic to C(L). This gives two
Koszmider, Piotr
core
From Public to Internal Capital Markets: The Effects of Affiliated IPOs on Group Firms
European Financial Management, Volume 32, Issue 1, Page 31-51, January 2026.ABSTRACT Using detailed corporate ownership data, we document the effects of group‐affiliated initial public offerings (IPOs) on other (unlisted) firms in the group. We find evidence of a persistent decrease in leverage (−6%) and increase in employment (+18%).
Simone Narizzano +3 more
wiley +1 more source
Module structure of Weyl algebras
Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.Abstract The seminal paper (Stafford, J. Lond. Math. Soc. (2) 18 (1978), no. 3, 429–442) was a major step forward in our understanding of Weyl algebras. Beginning with Serre's Theorem on free summands of projective modules and Bass' Stable Range Theorem in commutative algebra, we attempt to trace the origins of this work and explain how it led to ...
Gwyn Bellamy
wiley +1 more source
Kuwait Journal of ScienceIn this work, we investigate some approximation properties of blending type univariate and bivariate Schurer-Kantorovich operators based on shape parameter λ ∈ [−1, 1]. We evaluate some moment estimates and obtain several direct theorems.
Reşat Aslan
doaj +1 more source
International Journal of Mathematics and Mathematical Sciences, Volume 2026, Issue 1, 2026.This paper introduces a new numerical method for solving a class of two‐dimensional fractional partial Volterra integral equations (2DFPVIEs). Our approach uses Lucas polynomials (LPs) to construct operational matrices (OMs) that effectively transform the complex fractional‐order equations into a more manageable system of algebraic equations.
S. S. Gholami +4 more
wiley +1 more source
Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.This paper presents a one‐step multiderivative hybrid block method of Order 12 that incorporates an overlapping strategy, in which intrastep points from the previous block are reused in the current step to enhance accuracy and stability when solving linear and nonlinear initial value problems.
Uthman O. Rufai +4 more
wiley +1 more source
Conformally Covariant Bi-Differential Operators on a Simple Real Jordan Algebra
, 2017 For a simple real Jordan algebra $V,$ a family of bi-differential operators from $\mathcal{C}^\infty(V\times V)$ to $\mathcal{C}^\infty(V)$ is constructed.
Clerc, Jean-Louis +2 more
core
A new kind of Durrmeyer-Stancu-type operators
Demonstratio MathematicaThe objective of this study is to examine a class of positive linear operators, defined in terms of the bψ,kλ,μ{b}_{\psi ,k}^{\lambda ,\mu } basis and to analyze their approximation properties. Direct estimates for the (λ,μ)\left(\lambda ,\mu )-Durrmeyer-
Cai Qing-Bo +2 more
doaj +1 more source
Bernstein-Gelfand-Gelfand sequences
, 1999 This paper is devoted to the study of geometric structures modeled on homogeneous spaces G/P, where G is a real or complex semisimple Lie group and $P\subset G$ is a parabolic subgroup. We use methods from differential geometry and very elementary finite-
Cap, Andreas +2 more
core +1 more source