Results 21 to 30 of about 142,566 (153)

Invariants of hyperbolic partial differential operators [PDF]

, 2016
We present a construction of a large class of Laplace invariants for linear hyperbolic partial differential operators of fairly general form and arbitrary ...
Athorne, Christopher, Yilmaz, Halis
core   +3 more sources

Structure theorems for linear and non-linear differential operators admitting invariant polynomial subspaces [PDF]

, 2006
In this paper we derive structure theorems that characterize the spaces of linear and non-linear differential operators that preserve finite dimensional subspaces generated by polynomials in one or several variables.
Gomez-Ullate, David, Kamran, Niky, Milson, Robert   +2 more
core   +4 more sources

Parity and generalized multiplicity

, 1991
Assuming that X and Y are Banach spaces and that T is a path of linear Fredholm operators with invertible endpoints, in [F-Pl] we defined a homotopy invariant "the parity of T .
Fitzpatrickp., Pejsachowicz, Jacobo
core   +1 more source

Completeness and Nonclassicality of Coherent States for Generalized Oscillator Algebras [PDF]

, 2017
The purposes of this work are (1) to show that the appropriate generalizations of the oscillator algebra permit the construction of a wide set of nonlinear coherent states in unified form; and (2) to clarify the likely contradiction between the ...
Blanco-Garcia, Zurika, Cruz, Sara Cruz y, Rosas-Ortiz, Oscar, Zelaya, Kevin   +3 more
core   +3 more sources

Coordination mechanism of SaaS service supply chain: Based on compensation contracts

Journal of Industrial Engineering and Management, 2013
Purpose: The purpose of this paper is to build new contracts theories of SaaS service supply chain. Software as a Service (SaaS) has become a hot topic in this industry .
Yanli Guo, Jianbin Chen, Hailing Guo, Xinman Lu   +3 more
doaj   +1 more source

Fermionic Coset, Critical Level W^(2)_4-Algebra and Higher Spins

, 2011
The fermionic coset is a limit of the pure spinor formulation of the AdS5xS5 sigma model as well as a limit of a nonlinear topological A-model, introduced by Berkovits. We study the latter, especially its symmetries, and map them to higher spin algebras.
A Konechny, A Sagnotti, AB Zamolodchikov, AM Polyakov, AM Polyakov, Andrew R. Linshaw, AY Segal, B Sundborg, BL Feigin, C Candu, C Candu, DA Depireux, E Sezgin, E Sezgin, E Witten, ES Fradkin, ES Fradkin, G Bonelli, G Götz, H Saleur, I Bakas, I Bakas, I Bakas, IR Klebanov, J Isberg, J Isberg, J Kinney, JM Maldacena, L Rozansky, M Bershadsky, M Bianchi, MA Vasiliev, MA Vasiliev, MA Vasiliev, MA Vasiliev, MF Groot De, MR Douglas, N Beisert, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Berkovits, N Burroughs, NJ Burroughs, OV Shaynkman, P Haggi-Mani, PA Grassi, Peng Gao, R Benichou, S Giombi, S Giombi, SE Konstein, SK Ashok, SS Gubser, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Creutzig, T Quella, T Quella, Thomas Creutzig, U Lindström, V Mitev, V Schomerus, VK Dobrev, Y Hikida, Y Zhu   +72 more
core   +1 more source

Noncoercive Perturbed Densely Defined Operators and Application to Parabolic Problems

Abstract and Applied Analysis, 2015
Let X be a real locally uniformly convex reflexive separable Banach space with locally uniformly convex dual space X∗. Let T:X⊇D(T)→2X∗ be maximal monotone and S:X⊇D(S)→X∗ quasibounded generalized pseudomonotone such that there exists a real reflexive ...
Teffera M. Asfaw
doaj   +1 more source

Information Transmission using the Nonlinear Fourier Transform, Part I: Mathematical Tools

, 2014
The nonlinear Fourier transform (NFT), a powerful tool in soliton theory and exactly solvable models, is a method for solving integrable partial differential equations governing wave propagation in certain nonlinear media.
Kschischang, Frank R., Yousefi, Mansoor I.   +1 more
core   +1 more source

LDAcoop: Integrating non‐linear population dynamics into the analysis of clonogenic growth in vitro

Molecular Oncology, EarlyView.
Limiting dilution assays (LDAs) quantify clonogenic growth by seeding serial dilutions of cells and scoring wells for colony formation. The fraction of negative wells is plotted against cells seeded and analyzed using the non‐linear modeling of LDAcoop.
Nikko Brix, Daniel Samaga, Katharina Gehr, Benedek Dankó, Mohamed Schumann, Guido Drexler, Ahmed Alnatsha, Georg Beyer, Ujjwal Mahajan, Martin Selmansberger, Julia Mayerle, Claus Belka, Horst Zitzelsberger, Kirsten Lauber   +13 more
wiley   +1 more source

Equivalence theorems for nonlinear operator equations and coincidence degree theory for some mappings in locally convex topological vector spaces

Journal of Differential Equations, 1972
and falls in the scope of fixed point theory for the Hammerstein operators, i.e., operators which can be written KN with K : Z-+ X linear. References to works devoted to this theory can be found in the extensive bibliography given in the survey papers of Dolph and Minty [l] and of Ehrmann [2].
openaire   +2 more sources