Search results for "Monomial"

showing 4 items of 24 documents

ALGEBRE SIMMETRICHE DI ALCUNE CLASSI DI IDEALI MONOMIALI

The purpose of this thesis is the study of the symmetric algebra 〖Sym〗_S (L) of an interesting class of monomial ideals: the ideals L ⊂S=K[x1,...,xn,y1,...,ym] of mixed products in two sets of variables. Recently, this class is been used in order to test some algebraic conjecture, including the conjecture of Eisenbud -Goto, on the symmetric algebra 〖Sym〗_S (L) .Since such conjecture involves fundamental invariants of Sym (L), such as the Krull dimension, the multiplicity and regularity of Castelnuovo-Mumford, it was necessary to calculate these invariants or their bounds. This problem is difficult, but if L is generated by a s-sequence, you can arrive at a concrete result. In the work Mixed…

Settore MAT/02 - Algebragraded algebras symmetric algebras monomial ideals algebraic invariants
researchProduct

Advances in designing drip irrigation laterals

2018

It is known that using paired laterals, in which two distribution pipes extend in opposite directions from a common manifold, contribute to increasing water use efficiency (WUE). Recently, an analytical procedure to optimally design paired drip laterals on uniform slopes was proposed. More recently, this design procedure was simplified by deriving simple explicit relationships, as a function of 16 calibration constants, with relative errors that were less than 2%. In this paper, further simple design relationships are derived that require only 3 calibration constants, thus more readily obtainable results are produced and the influence of the flow rate and diameter exponents of resistance eq…

Sloped/horizontal drip lateralMonomial0208 environmental biotechnologySoil ScienceBoundary (topology)02 engineering and technologyDrip irrigationlaw.inventionlawCalibrationSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestaliEarth-Surface ProcessesWater Science and TechnologyMathematicsOptimal lateral lengthMathematical analysis04 agricultural and veterinary sciencesFunction (mathematics)Soil gradation020801 environmental engineeringPressure head040103 agronomy & agriculture0401 agriculture forestry and fisheriesMicroirrigationDesign relationshipAgronomy and Crop ScienceManifold (fluid mechanics)Agricultural Water Management
researchProduct

Local monomialization of generalized real analytic functions

2011

Generalized power series extend the notion of formal power series by considering exponents ofeach variable ranging in a well ordered set of positive real numbers. Generalized analytic functionsare defined locally by the sum of convergent generalized power series with real coe cients. Weprove a local monomialization result for these functions: they can be transformed into a monomialvia a locally finite collection of finite sequences of local blowingsup. For a convenient frameworkwhere this result can be established, we introduce the notion of generalized analytic manifoldand the correct definition of blowing-up in this category.

[MATH.MATH-GM]Mathematics [math]/General Mathematics [math.GM]resolution of singularitiesRésolution des singularités[ MATH.MATH-GM ] Mathematics [math]/General Mathematics [math.GM][MATH.MATH-AG] Mathematics [math]/Algebraic Geometry [math.AG]Local monomializationUniformisation locale[MATH.MATH-GM] Mathematics [math]/General Mathematics [math.GM][MATH.MATH-AG]Mathematics [math]/Algebraic Geometry [math.AG]local uniformization[ MATH.MATH-AG ] Mathematics [math]/Algebraic Geometry [math.AG]
researchProduct

THE ARITHMETIC BOHR RADIUS

2007

We study the arithmetic Bohr radius of Reinhardt domains in ℂ n which was successfully used in our study of monomial expansions for holomorphic functions in infinite dimensions. We show that this new Bohr radius is different from the radii invented by Boas and Khavinson and Aizenberg. It gives an explicit formula for the n-dimensional hypercone (which means n-dimensional variants of classical results of Bohr and Bombieri), and moreover asymptotically corrects upper and lower estimates for various types of convex and non-convex Reinhardt domains.

symbols.namesakeMonomialMathematics::Complex VariablesGeneral MathematicssymbolsRegular polygonHolomorphic functionHyperconeArithmeticBohr radiusBohr modelMathematicsThe Quarterly Journal of Mathematics
researchProduct