Results 81 to 90 of about 9,686 (209)

Characterizing the fine‐scale spatial distribution of soil phosphorus for efficient phosphorus management in an Illinois tile‐drained field

Journal of Environmental Quality, Volume 54, Issue 5, Page 1077-1089, September/October 2025.
Abstract Closed depressions in post‐glacial landscapes can accumulate phosphorus (P) due to repeated flooding and become hotspots for P loss when underlain by subsurface (tile) drainage. Soil P mapping is routinely based on the interpolation of samples from a 1‐ha grid, which may miss closed depressions and underestimate soil P levels leading to ...
Lenarth A. Ferrari, Lowell E. Gentry, Luis F. Andino, Jennifer M. Fraterrigo   +3 more
wiley   +1 more source

Confluent Darboux Transformations and Wronskians for Algebraic Solutions of the Painlevé III (D₇) Equation

Mathematics
Darboux transformations are relations between the eigenfunctions and coefficients of a pair of linear differential operators, while Painlevé equations are nonlinear ordinary differential equations whose solutions arise in diverse areas of applied ...
Joe W. E. Harrow, Andrew N. W. Hone
doaj   +1 more source

Galileo's ship and the relativity principle

Noûs, Volume 59, Issue 3, Page 585-611, September 2025.
Abstract It is widely acknowledged that the Galilean Relativity Principle, according to which the laws of classical systems are the same in all inertial frames in relative motion, has played an important role in the development of modern physics. It is also commonly believed that this principle holds the key to answering why, for example, we do not ...
Sebastián Murgueitio Ramírez
wiley   +1 more source

Factorization of nonlinear supersymmetry in one-dimensional Quantum Mechanics. I: general classification of reducibility and analysis of the third-order algebra

, 2007
We study possible factorizations of supersymmetric (SUSY) transformations in the one-dimensional quantum mechanics into chains of elementary Darboux transformations with nonsingular coefficients.
A. A. Andrianov, A. A. Andrianov, A. A. Andrianov, A. A. Andrianov, A. A. Andrianov, A. A. Andrianov, A. Aoyama, A. Lahiri, A. V. Sokolov, B. Mielnik, C. V. Sukumar, D. J. C. Fernández, E. Schrödinger, F. Cooper, F. Cooper, G. Darboux, L. D. Faddeev, L. E. Gendenshtein, L. Infeld, M. M. Crum, M. M. Nieto, M. V. Ioffe, V. G. Bagrov, V. G. Bagrov, V. G. Bagrov   +24 more
core   +1 more source

Convergence in Symbiont‐Induced Plant‐Mediated Responses to Herbivory: Cascading Effects for Foraging Parasitoids

Ecology Letters, Volume 28, Issue 8, August 2025.
Polydnaviruses represent a striking example of convergent evolution. These viruses, divided into bracoviruses and ichnoviruses, were independently acquired by braconid and ichneumonid parasitoid wasps respectively, to deliver pathogenic genes to caterpillar hosts.
Antonino Cusumano, Serge Urbach, Veronique Jouan, Heiko Vogel, Marcel Dicke, Anne‐Nathalie Volkoff, Erik H. Poelman   +6 more
wiley   +1 more source

Soliton Solutions to Sasa–Satsuma-Type Modified Korteweg–De Vries Equations by Binary Darboux Transformations

Mathematics
Sasa–Satsuma (SS)-type integrable matrix modified Korteweg–de Vries (mKdV) equations are derived from two group constraints, involving the replacement of the spectral matrix in the Ablowitz–Kaup–Newell–Segur matrix eigenproblems with its matrix transpose
Wen-Xiu Ma
doaj   +1 more source

Linearizability conditions of quasi-cubic systems

Electronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper we study the linearizability problem of the two-dimensional complex quasi-cubic system $\dot{z}=z+(zw)^{d}(a_{30}z^{3}+a_{21}z^{2}w+a_{12}zw^2+a_{03}w^{3}),~\dot{w}=-w-(zw)^{d}(b_{30}w^{3}+b_{21}w^{2}z+b_{12}wz^2+b_{03}z^{3})$, where $z, w,
Wentao Huang, Xingyu Fan, Xingwu Chen
doaj   +1 more source

Fractional Darboux Transformations

, 2002
In this paper we utilize the covariance of Ricatti equation with respect to linear fractional transformations to define classes of conformally equivalent second order differential equations. This motivates then the introduction of fractional Darboux transformations which can be recognized also as generalized Cole-Hopf transformations.
openaire   +2 more sources

Discrete Integrable Principal Chiral Field Model and Its Involutive Reduction

Studies in Applied Mathematics, Volume 155, Issue 2, August 2025.
ABSTRACT We discuss an integrable discretization of the principal chiral field models equations and its involutive reduction. We present a Darboux transformation and general construction of soliton solutions for these discrete equations.
J. L. Cieśliński, A. V. Mikhailov, M. Nieszporski, F. W. Nijhoff   +3 more
wiley   +1 more source

A note about isothermic surfaces in Rn-j,j

Revista Integración, 2008
In this note we survey our results on the description of ti- melike isothermic surfaces in Rn−j,j using the Grassmannian systems or U/K-systems. We give the natural extensions of the definition of Ribaucour and Darboux transformations for timelike ...
M. P. Dussan, M. A. Magid
doaj