简介:Inthispaper,aquantummodelforthebinomialmarketinfinanceisproposed.Weshowthatitsrisk-neutralworldexhibitsanintriguingstructureasadiskintheunitballofR^3,whoseradiusisafunctionoftherisk-freeinterestratewithtwothresholdswhichpreventarbitrageopportunitiesfromthisquantummarket.Furthermore,fromthequantummechanicalpointofviewwere-deducetheCox-Ross-RubinsteinbinomialoptionpricingformulabyconsideringMaxwell-BoltzmannstatisticsofthesystemofNdistinguishableparticles.
简介:<正>ThispaperprovidesapolyhedraltheoryongraphsfromwhichthecriteriaofWhit-neyandMacLanefortheplanarityofgraphsareunified,andabriefproofoftheGausscrossingconjectureisobtained.
简介:ispaperestablishesaformalmodelforhybriddiagnosis,novelfeaturesincluding:(1)Itprovidesaunifiedtheoreticalframeworkforutilizingdevicemodelsandheuristicsindiagnosis,whichnaturallyintegratesalltheimportantcomponentsofdiagnosis-thestructuralandbehavioraldescriptionofdevices,faultmodes,thelowerandupperfaultbounds,faultpossibilitiesandheuristicrules-intoadiagnosticsystem.Devicemodelspredictoutputsfrominputs,heuristicrulesinferthepossibilitiesofcertaincomponentsbeingfaultyfromsymptons,andyetthecombinationofbothconstrainseachotherforustoreducethehypothesisspace.(2)Itpresentsatypicalwayofmodelingbehaviorofdevices,towhichthekeyistheintroductionofI-Ofunctionswithindefiniteinputs/outputs.(3)Itcaneasilybeimplementedoveraforware-chaininginferenceengine.
简介:Basedontheequilibriumtidetheoryoftheseawater,amodeloflongperiodvariationsinairpressurewiththelunarmotionisderivedtoadvancetheclimatictideconceptandformulatetheclimatictideformula,whichprovidesusefulleadsforpredictingtheheavymeteorologicalcatastropheinShandongarea,eveninChina,aswellasinthewholeworld.
简介:Inrecentyears,numeroustextualstudieshaveappeared.However,themajorityofthemconcentratedonthestudyofcohesionandcoherenceofsentences.VanDijk(1977,1980),Hollandfamouslinguist,putforward"Macrostructures"whichprovideuswithatheoreticalbasistostudymacrostructureoftexts.ThepaperaimstointroduceitinverydetailandmakeitknowntoalltheEnglishlearners.
简介:Inthenormal-modetheoryofMorse,itgivesaseriesofnormalmodesasthesolutionofforcedvibrationinaroom.Butactuallythereisalwaysthedirectradiationbesidesthenormalmodeswhichrepresentthereverbrantsoundfieldonly.Thereasonisthatthenormalmodeswereassumedonlyinthesource,andnaturallynormalmodesonlyareobtainedinthesolution.Atheoryofdoublesourceisproposed,thatthesoundsourceisboththesourceofthedirectradiationasifinfreespacebeforetheboundarysurfaceswerereachedbythedirectradiation,andafterthefirstreflectionfromtheboundarysurfaces,thesourceofthereflectedwavelets,randomlydistributedbothinspaceanintimeontheboundarysurfacesthatbuildupthenormalmodesafterfurtherreflections.Thewaveequationisformedaccordingly,andthesolutionofthewaveequation,thesoundfieldinaroom,containsexplicitlyboththedirectradiationandthereverberantsoundformedofnormalmodes.Theapproximatemeansquaresoundpressureisfoundtobethedircetsounddeterminedbythesoundpowerofthesource,andreverberantsounddeterminedbythesoundpowerreducedbyafactorofπ/2,differentslightlyfromtheresultobtainedfromenergyconsideration,ifthesourceispuretone.Thereisessentiallynodifferenceforasourceofbandnoise.
简介:Anewformofdamagetheoryofmaterialsisproposed,thatisvalidforthecaseofnonconservativestresses.Thepartialentropy,strainandmicrostructureparametersaretakenasthestatevariables.Withoutassumingthefreeenergytobeastatefunction,thebasicgoverningequationsarederived.Accordingtothebalanceofreleasedanddissipatedenergy,thegeneralformofdamageevolutionequationisobtained.Further,assumingtheexistenceofindependentdamagemechanisms,thenormalityofdamageevolutionequationisproven.Thegeneralizeddamagevariablesaredis-cussed.Finally,someexamplesaregiventoshowtheapplicationsofthetheory.
简介:Inthispaper,weproposetheconceptofcohomologicaloperator.Concretely,wesuggestthecohomologicaldifferentialoperator,correlativecohomologicaldifferentialoperatorandextensivecohomologicaldifferentialoperatorandbringcovariantderivativeintotheextensivecohomologicaldifferentialoperator,WeconstructonetypeofnonlineardifferentialequationsbyextensivecohomologicaldifferentialoperatorandcomparetheobtainedresaleswiththeYang-Millsequation.
简介:Inthispaper,severalusuallyusedpolynomialinterpolationmethodsareexplainedinviewofvectorbasisanddimensioninlinearalgebratheory.Usingtransitionmatrixes,generalconversionformulabetweenthebasisfunctionsetsofthesepolynomialinterpolationmethodsaregiven.Anexamplealsoshowstheeffectivenessoftheresults.
简介:Thisarticleputsforwarda'unifiedfieldtheory'forinternationalrelations(IR).ItfirstdividescurrentwesternIRtheoriesintohardandsoftcategories,thenpointsoutconceptualfallaciesofthethreemajordebatesinthehistoryofWesternIRtheoriesbyusingthiscategorizationasananalyticalguide.ItfurtherassertsthatsuchacategorizationshouldhelpclarifythepresenttheoreticalchaosbypursuingaunifiedIRtheoreticalsystem.
简介:InthispapersomeequivalencedefinitionsaregivenfornativespaceswhichwereintroducedbyMadychandNelsonandhavebecomeinfluentialinthetheoryofradialbasisfunctions.Theabstractelementsinnativespacesareinterpreted.Moreover,WeinrichandIske'stheoriesareunified.