Results 121 to 130 of about 71,271 (229)

Remarks on Green function of space-fractional biharmonic heat equation using Ramanujan’s master theorem

open access: yesKuwait Journal of Science, 2017
In this paper, we show an addition formula for a class of Mellin transformable functions using Ramanujan’s master theorem. Also, we get the associated addition formula of Gaussian functions in terms of the Bessel functions and Green function of the ...
Alireza Ansari
doaj  

New 3d N $$ \mathcal{N} $$ = 2 dualities from quadratic monopoles

open access: yesJournal of High Energy Physics, 2018
Aspects of three dimensional N $$ \mathcal{N} $$ = 2 gauge theories with monopole super-potentials and their dualities are investigated. The moduli spaces of a number of such theories are studied using Hilbert series.
Antonio Amariti   +2 more
doaj   +1 more source

Rational points on even‐dimensional Fermat cubics

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract We show that even‐dimensional Fermat cubic hypersurfaces are rational over any field of characteristic not equal to three, by constructing explicit rational parameterizations with polynomials of low degree. As a byproduct of our rationality constructions, we obtain estimates for the number of their rational points over a number field and ...
Alex Massarenti
wiley   +1 more source

General properties of multiscalar RG Flows in $d=4-\varepsilon$

open access: yesSciPost Physics, 2019
Fixed points of scalar field theories with quartic interactions in $d=4-\varepsilon$ dimensions are considered in full generality. For such theories it is known that there exists a scalar function $A$ of the couplings through which the leading-order ...
Slava Rychkov, Andreas Stergiou
doaj   +1 more source

Topology Optimization in Civil Engineering − On the Consideration of Concrete Failure Characteristic and Self‐Weight

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT The mechanical efficiency of civil engineering structures is a key factor in the sustainable transformation of the building sector. This study presents topology optimization in civil engineering design. The static load profile of civil engineering structures is typically dominated by their self‐weight, which introduces, as a special ...
Daniela Masarczyk   +2 more
wiley   +1 more source

MAL-Net: Model-Adaptive Learned Network for Slow-Time Ambiguity Function Shaping

open access: yesRemote Sensing
Designing waveforms with a Constant Modulus Constraint (CMC) to achieve desirable Slow-Time Ambiguity Function (STAF) characteristics is significantly important in radar technology. The problem is NP-hard, due to its non-convex quartic objective function
Jun Wang   +5 more
doaj   +1 more source

STABILITY OF QUARTIC SET-VALUED FUNCTIONAL EQUATIONS

open access: yesJournal of the Chungcheong Mathematical Society, 2015
Abstract. We will show the general solution of the functionalequationf(x + ay) + f(x ay) + 2(a 2 1)f(x)= a 2 f(x + y) + a 2 f(x y) + 2a 2 (a 2 1)f(y)and investigate the Hyers-Ulam stability of the quartic set-valuedfunctional equation. 1. IntroductionThe theory of set-valued functions in Banach spaces is connected tothe control theory and the ...
openaire   +2 more sources

Triggered Ferroelectricity in HfO2 From Hybrid Phonons and Higher‐Order Dynamical Charges

open access: yesAdvanced Materials, Volume 38, Issue 19, 1 April 2026.
We combine first‐principles calculations, LGD theory and group theory to demonstrate the mechanism of hybrid‐triggered ferroelectricity in HfO2${\rm HfO}_2$, enabled by trilinear and quadlinear couplings between stable polar and nonpolar modes. HfO2${\rm HfO}_2$ hosts unconventional interplay between structure modes where substantial contribution to ...
Seongjoo Jung, Turan Birol
wiley   +1 more source

Sub‐100 Nanometer Focusing of Hard X‐rays Using SU‐8 Compound Kinoform Focusing Lenses

open access: yesAdvanced Photonics Research, Volume 7, Issue 4, April 2026.
A novel aberration‐free X‐ray compound refractive lens design based on Cartesian oval curve is presented. Achieving a vertical focal spot size of 70.8 nm using knife‐edge scanning with a 200 μm incident aperture. Wavefront reconstruction via knife‐edge imaging further resolves a refined focal spot of 56 nm.
Yuanze Xu   +12 more
wiley   +1 more source

Reduced sediment accumulation rate enhances early marine diagenesis of periplatform sediments

open access: yesThe Depositional Record, Volume 12, Issue 2, April 2026.
The influence of reduced sediment accumulation rate on early marine burial diagenesis was investigated in sediments collected by ODP Leg 133. Results show that low sediment accumulation rates can produce substantial and asynchronous shifts in stable carbon isotope ratios across a slope transect without the development of sedimentological indicators of ...
Amanda M. Oehlert   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy