Results 41 to 50 of about 543,632 (147)
Integral and fractional equations, positive solutions, and Schaefer's fixed point theorem [PDF]
Opuscula Mathematica, 2016 This is the continuation of four earlier studies of a scalar fractional differential equation of Riemann-Liouville type \[D^qx(t) = -f(t,x(t)), \quad \lim_{t\to 0^+} t^{1-q} x(t) = x^0 \in\Re \quad (0 \lt q \lt 1), \tag {a}\] in which we first invert it ...
L. C. Becker +2 more
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The scalar box integral and the Mellin - Barnes representation [PDF]
Int.J.Mod.Phys.A26:2557-2568,2011, 2011 We solve exactly the scalar box integral using the Mellin-Barnes representation. Firstly we recognize the hypergeometric functions resumming the series coming from the scalar integrals, then we perform an analytic continuation before applying the Laurent expansion in^2 = (d !' 4)=2 of the result.
arxiv +1 more source
The Webster scalar curvature flow on CR sphere. Part II [PDF]
Advances in Mathematics (2015) pp. 836-905, 2014 This is the second of two papers, in which we study the problem of prescribing Webster scalar curvature on the CR sphere as a given function f. Using the Webster scalar curvature flow, we prove an existence result under suitable assumptions on the Morse indices of f.
arxiv +1 more source
Wheeler-DeWitt Quantization of Gravity Models of Unified Dark Energy and Dark Matter
, 2017 First, we describe the construction of a new type of gravity-matter models based on the formalism of non-Riemannian space-time volume forms - alternative generally covariant integration measure densities (volume elements) defined in terms of auxiliary ...
Bryce S. DeWitt +3 more
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Results in Physics, 2021 Static spaces (with perfect fluids) appeared in a natural way both in physics (cf. Hawking and Ellis, 1975) and mathematics (cf. A. Fischer and J. Marsden, Duke Math. J. 42 (3) (1975), 519–547).
Ibrahim Al-Dayel +2 more
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Irreversibility of World-sheet Renormalization Group Flow
, 2005 We demonstrate the irreversibility of a wide class of world-sheet renormalization group (RG) flows to first order in $\alpha'$ in string theory. Our techniques draw on the mathematics of Ricci flows, adapted to asymptotically flat target manifolds.
Adams +18 more
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SAGE Open, 2020 Self-efficacy has been considered an essential mediator and predictor of individual counseling performance. As there is no existing scale to measure counseling self-efficacy in the counseling domain, the Sources of Middle School Mathematics Self-Efficacy
Ooi Pei-Boon +3 more
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Generation of rotating solutions in Einstein-scalar gravity [PDF]
, 2020 We revisit the problem of the rotating generalization of the Fisher-Janis-Newman-Winicour solution of the minimal Einstein-scalar theory proving that the two previously proposed solutions do not satisfy the equations of motion. We also derive several new spinning solutions with the scalar charge, which are endowed with oblate deformation.
arxiv +1 more source
Frontiers in EducationStudents’ use of personal mobile devices (PMDs), including smartphones, tablets, and laptops, in mathematics classrooms globally has become feasible due to the implementation of the bring your own device (BYOD) initiatives and policies in schools ...
Cloneria Nyambali Jatileni +3 more
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Quasi-Particles in Non-Commutative Field Theory [PDF]
, 2000 After a short introduction to the UV/IR mixing in non-commutative field theories we review the properties of scalar quasi-particles in non-commutative supersymmetric gauge theories at finite temperature.
Landsteiner, Karl
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