Results 51 to 60 of about 4,146,228 (289)
Normal Form and Solitons [PDF]
32 pages, AMSLaTeX, 8 ...
Hiraoka, Y., Kodama, Y.
openaire +2 more sources
Conservation laws and normal forms of evolution equations
We study local conservation laws for evolution equations in two independent variables. In particular, we present normal forms for the equations admitting one or two low-order conservation laws.
Abellanas +35 more
core +1 more source
ABSTRACT Background The management of clinically apparent single lesions or oligofocal nephroblastomatosis, a facultative precursor of nephroblastoma, remains debated. Methods We retrospectively analyzed 37 patients with clinically apparent single or oligofocal nephroblastomatosis (two to three lesions per kidney) among 2347 patients registered between
Nils Welter +17 more
wiley +1 more source
Perfect disjunctive normal forms of algebra U2
The complete identities system of algebra U2 have been constructed in the paper. On the basis of the complete identities system an algorithm for constructing the perfect disjunctive normal form is developed.
І. А. Мич +2 more
doaj +1 more source
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley +1 more source
Integrability of a Family of Four-Dimensional Quadratic Lotka–Volterra Complex Systems
This work addresses the integrability of four-dimensional quadratic Lotka–Volterra systems exhibiting (1:−1:i:−i) resonance by identifying the parameter constraints required for such properties to exist.
Ivan Mastev, Valery G. Romanovski
doaj +1 more source
Local integrable differential systems and their normal forms
In this paper we first summarize our results published in recent years and their sketch proofs on local integrability,which are on the characterization of local integrability and on the existence of analytic normalization of analytically integrable ...
Shiliang Weng, Xiang Zhang
doaj +1 more source
On Urn Models, Non-commutativity and Operator Normal Forms
Non-commutativity is ubiquitous in mathematical modeling of reality and in many cases same algebraic structures are implemented in different situations. Here we consider the canonical commutation relation of quantum theory and discuss a simple urn model ...
Baez +28 more
core +1 more source
Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley +1 more source
The radical of the focal values ideal of the complex Kukles system
In the article it is considered the center-focus problem for complex Kukles system x = y, y = -x + Ax2 + 3Bxy + Cy2 + Kx3 + 3Lx2y + Mxy2 + Ny3. The problem is solved by the new method, obtained by A. P.
Anton P. Sadovskii +2 more
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