共查询到20条相似文献,搜索用时 15 毫秒
1.
1 IntroductionThe surjectivity of convolution operator and in particular of linear partial differrentialoperators with constant coefficients is often equivalent to a problem of division in anappropriate space of entire functions.Those problems often have a tight connection withthe study of plurisubharmonic functions and weight system.In this paper we construct aclass of plusisubharmonic functions of positively homogeneous oforderρ and some weightsystem,and discuss their properties.These res… 相似文献
2.
《系统科学与系统工程学报(英文版)》1998,(3)
1IntroductionManusessenseorgansasmediainunderstandingtheobjectiveworld.Leninsaidthatsensationsaretheimagesofmateronthemove,we... 相似文献
3.
YAN Yangkui Department of Mathematics Shanxi University Taiyuan Shanxi P.R.China 《系统科学与系统工程学报(英文版)》1993,(4)
This paper discusses the capturability with fixed time of a pseudo-linear differentialgame of pursuit.The pursuit set in which the pursuit will end once the initial state lies in this set isgiven by the method of integration of multi-valued function.The results obtained here solve an openproblem of Pontrjagin's on the linear differential game of pursuit.Meanwhile,the requirement of theconvexity of the control set and other related Pontrjagin's conditions are removed. 相似文献
4.
1.IMRODUCTIONThefirstcompleteformulation(henceofunderstanding)ofspecialrelativity(SR)wasduetoEinsteinwhoPOstulatedtheinvarianceoflightspeedinvacuo.Thisassumptionappearedhighlynonintuitive.Actuallyitseemedabsurdthatafterhavingmeasuredthespeedofthelightemittedbyasource,oneshouldmeasurethesamevaluewhenapproaching(ordrivingawayfrom)thesamesourceoflight.ItwasthegreatmeritofMansouriandSexl[l]tohaveshownthatthelightspeedinagivendirectionisindependentofthereferencesystemSprovidedtheclocksofSbe… 相似文献
5.
Yuan Zhong ZHANG 《系统工程与电子技术(英文版)》1995,(4)
1.INTRODUCTION.ItiswellknownthatEinsteintheoryofspecialrelativitydiffersfromtheclassicalphysicsessentiallybythesecondPOstulate,theconstancyofvelocityoflightinavacuum.InhisfirstpaperopspecinlrelativityEinstein[l]stressedthedefinitionofsimultaneityandshowedthattheconstancyofone--wayspeedoflightisusedtosynchronizetheseparateclocksinthereferencesystems.Sincethattime,toomanypapersandbooks[2--12],inwhichisotropyofone--wayspeedoflightisdiscussed,havebeenpublished.Althoughallthetesttheoriesandth… 相似文献
6.
A Method of Polydirectional Fuzzy Synthetical Cluster of Considering Partiality of Decision Maker 总被引:2,自引:0,他引:2
AMethodofPolydirectionalFuzzySyntheticalClusterofConsideringPartialityofDecisionMaker¥LUZonghua;YAOLaichang(ShandongInstitute... 相似文献
7.
《系统工程与电子技术(英文版)》1998,(4)
1.INTSODUCTIONOnindex-1noallnearsingularsystemswithoutdelay,thelocalekistenceanduniquenessofsolutionshasbeendiscussedinthereference[2].Onglobalekistenceanduniquenessofsolutionsofindex-1systemsandofhighindexsystems,therehasbeennotmuchdiscussion.Onthebasictheoryofnonlinearsingularsystemswithdelay'therearefewresults.Itisdndculttodiscusstheekistenceanduniquenessofsolutionsoftheirinitialvalueproblems.Singularsystemscanbetransformedilltodifferelltialalgebraicequations.Andnonlinearalgebraicequa… 相似文献
8.
JinglongZhang GuangyongChen WeiGuo GangXie 《系统科学与信息学报》2004,2(4):599-604
The Leading industry influences the economic development of one city. This paper establishes a decision factor system of choosing leading industry of cities, applies related decision theory in Grey System and invents the procedure of choosing leading industry, which achieved a good practical effect. Afterwards, the city Tianmen acclaims the dress industry as Leading Industry in its “The Tenth Five-Year Plan for Economic and Social Development of City TianMen“. 相似文献
9.
《系统工程与电子技术(英文版)》1996,(1)
ApplicationofFSStoReductionofAntennas'RCS¥FengLin&RoanYingzheng(UniversityofElectronicScienceandTechnologyofChina,Chengdu6100... 相似文献
10.
Some Properties of a Measure of Information Discrepancy 总被引:1,自引:0,他引:1
1 IntroductionBased on a group of axioms,a measure of information discrepancy among multipleinformation sources has been introduced in [7,8,10 ]( itabbreviated by FDOD measure) ,it has been shown that there is a close relationship between this measure and Shannonentropy,and it has many algebraic,analytic and statistic properties,such as non-negative,identity,symmetry,continuity,invariant for average,monotonicity,homogeneity,convexity,symmetric recursiveness,and so on. It has some peculiarpr… 相似文献
11.
The explanation and simulation of the natural and artificial intelligence are the central goals of the studies of Neuroscience, Psychology, Artificial Intelligence and Cognitive Science. This paper first gives an introduction to the core topics and approaches in the study. Then, GAF--a general adaptive framework for neural system is proposed. Interdisciplinary discussions around the adaptation of the human nervous system are presented. Rules describing the theory of adaptation of the nervous system are provided. 相似文献
12.
This paper considers the class of autonomous algebraic ordinary differential equations(AODEs) of order one, and studies their Liouvillian general solutions. In particular, let F(y, w) = 0 be a rational algebraic curve over C. The authors give necessary and sufficient conditions for the autonomous first-order AODE F(y, y′) = 0 to have a Liouvillian solution over C. Moreover, the authors show that a Liouvillian solution α of this equation is either an algebraic function over C(x) or an algebraic f... 相似文献
13.
1.INTRODUCTIONFuzeisaninformationprocessingsystem[1]andhassystemOPeningandcODtrollingfestures.TheopeningfeatureoffuseiseXPressedbytheinformationchangewithoutside;ThecontrollingfeatureisexpressedbytheexplosionpointcontrolandstatecODtrol.ThebasisofaChievingthecoDtrolisgainingandprocessingthetargetinfortnstioneffectively.DmereDtfromthetraditionalanalyzingmethods,thispaperresearchesthechannelfeatureofgannnginformationoffUzeandcharacteristicsofhighfrequencysignalprocessingOfradpromtyfuzem… 相似文献
14.
Application of Fuzzy Mathematics in the Evaluation of Textbooks in institutions of Higher Learning 总被引:1,自引:0,他引:1
ApplicationofFuzzyMathematicsintheEvaluationofTextbooksininstitutionsofHigherLearning¥LIJianning;YANXianming(shanxiUniversity... 相似文献
15.
Zhang Lianying & Wang AnminManagement School Tianjin University Tianjin P. R. China 《系统工程与电子技术(英文版)》2005,16(1)
1.INTRODUCTION Thediversityandconvergenceofgeneticalgorithms havegainedmoreattentionbymanyspecialistsinre centyears,althoughGAhasbeenwidelyusedin manyfieldsandobtainedsomesuccess,therestill isn’tasetofcompletetheorytoexplaintheprinciple ofGA,tosomeextent,itsdevelopmentisrestricted, evenmakingsomeonedoubtfulaboutit. Holland’smodeltheoremisthemaintheoryof GA,butitjustdisclosestheaveragechangeinthe evolutionarypopulation,notsuggestinganyinforma tionofindividualdistributionwithintheevo… 相似文献
16.
Elias, et al.(2016) conjectured that the Kazhdan-Lusztig polynomial of any matroid is logconcave. Inspired by a computer proof of Moll’s log-concavity conjecture given by Kauers and Paule,the authors use a computer algebra system to prove the conjecture for arbitrary uniform matroids. 相似文献
17.
MA Chaoqun LI Qingguo International Business School of Hunan University Hunan 《系统科学与系统工程学报(英文版)》1997,(3)
AGeneralTheoryofEstimationofVarianceCovarianceComponentsMAChaoqunLIQingguoInternationalBusinesScholofHunanUniversity,Hunan41... 相似文献
18.
QU Kaishe 《系统科学与系统工程学报(英文版)》1996,(3)
TheApplicationsofMaximalSubgroupofFluteGroupQUKaishe(DepartmentofComputerScience,ShanxiUniversity,Taiyuan,030006)QIQuanyue(In... 相似文献
19.
1.IWTaODUCTIONAfaultdiagnosticexpertsystem(FDES)isusedtoensurethespacecraftsafetyeffectively.Theexpertsystemmustrunreliablyandavailablytoanadequateextelltinordertoprovidethehighestpossiblelevelofservice.Ingeneral,beforetheFDESisputilltopractice,itshouldbeveriliedasfarasitsdiagnosticvalidityanditsoperationalmethodsareconcerned.Accordingtotheoperationalprincipleoftheelectricalpowersubsystemofacertainkindofsatellite,atestbedsystemwasdevelopedtosimulatethenormalstatesandfailuremodesofthesa… 相似文献
20.
Erich R. Bagge 《系统工程与电子技术(英文版)》1995,(4)
ThefascinationexertedonmanybrilliantphysicistsofourtimebyEinstein,stheoryofgeneralrelativityiscausedmainlybytworeasons:l)ThetheoryisabletoexplainthesecularmotionofMercury,sperihelionandgivesforitavalueof43.2"perhundredyears,whichisinsplendidaccordancewiththecorrespondingvalueascertainedbytheastronomers.2)ThetheoryPredictsadeflectionofstarlightbytheSun,givingadeviationofaboutl.72"fromthestraightline,whichisobserved,too.Furthermore,thereexistsuntilnownoothertheory,whichcanexplainthesetwoeffect… 相似文献