Results 41 to 50 of about 537 (169)
Fermat type differential and difference equations
Electronic Journal of Differential Equations, 2015 This article we explore the relationship between the number of differential and difference operators with the existence of meromorphic solutions of Fermat type differential and difference equations. Some Fermat differential and difference equations of
Kai Liu, Xianjing Dong
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Wave Propagation in Non‐Uniform Media by Linear Expansion of the Refraction Law
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.ABSTRACT The propagation of mechanical waves in an unbounded, non‐uniform medium can be described by using curvilinear coordinates centered at the source position. The Frenet coordinate system, with origin on a point riding a wave, is used as a basis for the curvilinear coordinates.
Alessandro Bassetti, Oskar Bschorr
wiley +1 more source
Variable selection via thresholding
Scandinavian Journal of Statistics, Volume 53, Issue 1, Page 207-237, March 2026.Abstract Variable selection comprises an important step in many modern statistical inference procedures. In the regression setting, when estimators cannot shrink irrelevant signals to zero, covariates without relationships to the response often manifest small but nonzero regression coefficients.
Ka Long Keith Ho, Hien Duy Nguyen
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Comparative analysis of integer factorization algorithms
MANAS: Journal of Engineering, 2015 Integer factorization problem, which is used as the basis in many public key cryptosystem, is generally thought to be hard problem even on a modern computers.
G. Kimsanova, R. Ismailova, R. Sultanov
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Journal of High Energy PhysicsWe propose to use the winding number of the gradient of a scalar potential as a simple topological index that relates critical points in the interior of the scalar field space to the behavior of the potential at the (asymptotic) boundary of the field ...
Severin Lüst
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A brief history of mathematics in finance
Borsa Istanbul Review, 2014 In the list of possible scapegoats for the recent financial crises, mathematics, in particular mathematical finance has been ranked, without a doubt, as the first among many and quants, as mathematicians are known in the industry, have been blamed for ...
Erdinç Akyıldırım, Halil Mete Soner
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Arithmetic progressions at the Journal of the LMS
Journal of the London Mathematical Society, Volume 113, Issue 3, March 2026.Abstract We discuss the papers P. Erdős and P. Turán, On some sequences of integers, J. London Math. Soc. (1) 11 (1936), 261–264 and K. F. Roth, On certain sets of integers, J. London Math. Soc. (1) 28 (1953), 104–109, both foundational papers in the study of arithmetic progressions in sets of integers, and their subsequent influence.
Ben Green
wiley +1 more source
More on G-flux and general hodge cycles on the Fermat sextic
Journal of High Energy PhysicsWe study M-Theory solutions with G-flux on the Fermat sextic Calabi-Yau fourfold, focussing on the relationship between the number of stabilized complex structure moduli and the tadpole contribution of the flux.
Andreas P. Braun +3 more
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An arithmetic term for the factorial function
Examples and CounterexamplesAs proved by Marchenkov and Mazzanti, every Kalmar function can be represented by arithmetic terms. We display one of such terms to represent the factorial function, and as a consequence, we get an example of an arithmetic term which represents a ...
Mihai Prunescu, Lorenzo Sauras-Altuzarra
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Restoration of lost connectivity of partitioned wireless sensor networks
Cogent Engineering, 2016 The lost connectivity due to failure of large-scale nodes plays major role to degrade the system performance by generating unnecessary overhead or sometimes totally collapse the active network.
Virender Ranga +2 more
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