Results 21 to 30 of about 1,734,631 (265)

Higher-Order Nabla Difference Equations of Arbitrary Order with Forcing, Positive and Negative Terms: Non-Oscillatory Solutions

open access: yesAxioms, 2023
This work provides new adequate conditions for difference equations with forcing, positive and negative terms to have non-oscillatory solutions. A few mathematical inequalities and the properties of discrete fractional calculus serve as the fundamental ...
Jehad Alzabut   +4 more
doaj   +1 more source

Review of the Influence of non-singular higher order terms on the stress field of thin welded lap joints and small inclined cracks in plates [PDF]

open access: yesFracture and Structural Integrity, 2017
In stress analysis of cracked plates, alongside the stress intensity factor which quantifies the singular stress component perpendicular to the crack plane, the role played in crack growth by the constant term parallel to the crack plane, called the T ...
F. Berto   +3 more
doaj   +3 more sources

About Boundary Terms in Higher Order Theories [PDF]

open access: yes, 2011
It is shown that when in a higher order variational principle one fixes fields at the boundary leaving the field derivatives unconstrained, then the variational principle (in particular the solution space) is not invariant with respect to the addition of boundary terms to the action, as it happens instead when the correct procedure is applied. Examples
FATIBENE, Lorenzo   +2 more
openaire   +3 more sources

A new mechanism for freezing extra dimensions with higher-order curvature terms

open access: yesPhysics Letters B, 2020
We construct a model of higher dimensional cosmology in which extra dimensions are frozen by virtue of the cubic-order Lovelock gravity throughout the cosmic history from inflation to the present with radiation and matter-dominated regimes in between.
Hiroaki W.H. Tahara   +2 more
doaj   +1 more source

A Comprehensive Study on the Zeros of the Two-Parameter Mittag-Leffler Function [PDF]

open access: yesSahand Communications in Mathematical Analysis
The Mittag-Leffler function appears as an analytical solution of some fractional differential equations. The behavior of the zeros of the Mittag-Leffler function, especially their asymptotic distribution, plays a fundamental role in the study of ...
Farnoosh Abooali   +1 more
doaj   +1 more source

The Solution of a System of Higher-Order Difference Equations in Terms of Balancing Numbers

open access: yesPan-American Journal of Mathematics, 2023
In this paper, we are interested in the closed-form solution of the following system of nonlinear difference equations of higher order, un+1 = 1/34-vn-m , vn+1 = 1/34-un-m, n, m ∈ N0, and the initial values u-j and v-j , j∈{0, 1, ..., m} are real numbers
Ahmed Ghezal, Imane Zemmouri
doaj   +1 more source

Large deflection analysis of frames by elements containing higher-order terms

open access: yesVietnam Journal of Mechanics, 2003
In this paper, the beam elements using higher-order terms for large deflection analysis of elastic frames are discussed. The elements based on the co-rotational method are derived using the strain energy and effective strains.
Nguyen Dinh Kien, Do Quoc Quang
doaj   +1 more source

MATRIX MODEL PERTURBED BY HIGHER ORDER CURVATURE TERMS [PDF]

open access: yesModern Physics Letters A, 1992
The critical behavior of the D=0 matrix model with the potential perturbed by a nonlocal term generating touchings between random surfaces is studied. It is found that the phase diagram of the model has many features of the phase diagram of discretized Polyakov’s bosonic string with higher order curvature terms included.
openaire   +2 more sources

SMIRNOV AND BERNSTEIN-TYPE INEQUALITIES, TAKING INTO ACCOUNT HIGHER-ORDER COEFFICIENTS AND FREE TERMS OF POLYNOMIALS

open access: yesПроблемы анализа, 2023
The starting point in the theory of differential inequalities for polynomials is the book "Investigation of aqueous solutions by specific gravity" by D. I. Mendeleev. In this work, he dealt not only with chemical, but also mathematical problems.
E. G. Kompaneets, L. G. Zybina
doaj   +1 more source

Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements [PDF]

open access: yesFracture and Structural Integrity, 2017
A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic fracture mechanics (LEFM) theory in
S. Seitl   +4 more
doaj   +4 more sources

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