Search results for "Quotient"

showing 10 items of 230 documents

Quotients of Hypersurfaces in Weighted Projective Space

2009

Abstract In [Bini, van Geemen, Kelly, Mirror quintics, discrete symmetries and Shioda maps, 2009] some quotients of one-parameter families of Calabi–Yau varieties are related to the family of Mirror Quintics by using a construction due to Shioda. In this paper, we generalize this construction to a wider class of varieties. More specifically, let A be an invertible matrix with non-negative integer entries. We introduce varieties XA and in weighted projective space and in , respectively. The variety turns out to be a quotient of a Fermat variety by a finite group. As a by-product, XA is a quotient of a Fermat variety and is a quotient of XA by a finite group. We apply this construction to som…

Fermat's Last TheoremFinite groupPure mathematicscalabi yau weighted projective spacelaw.inventionMathematics - Algebraic GeometryInvertible matrixMathematics::Algebraic GeometryIntegerlawFOS: MathematicsOrder (group theory)Geometry and TopologySettore MAT/03 - GeometriaVariety (universal algebra)Weighted projective spaceAlgebraic Geometry (math.AG)QuotientMathematics
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Education and long-term outcomes in first episode psychosis: 10-year follow-up study of the PAFIP cohort

2021

[Background] Lower levels of education have been associated with the development of psychosis. Investigating educational achievement in the first episode of psychosis (FEP) patients may shed light on the origins of the alterations and on the variability of outcomes in psychotic disorders.

First episodemedicine.medical_specialtyPsychosisIntelligence quotientbusiness.industryAttendanceNeuropsychologyCognitionmedicine.diseaseFirst-episode psychosis030227 psychiatryEducation03 medical and health sciencesPsychiatry and Mental health0302 clinical medicineCohortmedicineLong-term outcomesPsychiatrybusinessNeurocognitiveNeurocognition030217 neurology & neurosurgeryApplied Psychology
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Early Vision and Soft Computing

2002

The term soft-computing has been introduced by Zadeh in 1994. Soft-computing provides an appropriate paradigm to program malleable and smooth concepts. For example, it can be used to introduce flexibility in artificial systems and possibly to improve their Intelligent Quotient. Aim of this paper is to describe the applicability of soft-computing to early vision problems. The good performance of this approach is claimed by the fact that digital images are examples of fuzzy entities, where geometry of shapes are not always describable by exact equations and their approximation can be very complex.

Flexibility (engineering)Soft computingbusiness.industryComputer scienceExact differential equationComputer visionArtificial intelligenceMathematical morphologybusinessFuzzy logicQuotientMembership functionTerm (time)
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Influence of metabolic state (substrate oxidation ratio) on food liking, food wanting and food consumption in young men

2011

Meeting Abstract n°484 . WOS: 000288862900481; International audience

Food-intake[SDV.AEN] Life Sciences [q-bio]/Food and Nutritionsensory stimulationfood linkingmetabolic staterespiratory quotientfood wanting[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutritionfood likingbody-weight regulation[SDV.AEN]Life Sciences [q-bio]/Food and Nutritionfood rewardolfaction
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Albanese Maps and Fundamental Groups of Varieties With Many Rational Points Over Function Fields

2020

We investigate properties of the Albanese map and the fundamental group of a complex projective variety with many rational points over some function field, and prove that every linear quotient of the fundamental group of such a variety is virtually abelian, as well as that its Albanese map is surjective, has connected fibres, and has no multiple fibres in codimension one.

Fundamental groupPure mathematicsGeneral Mathematics01 natural sciencesSurjective functionMathematics - Algebraic GeometryMathematics::Algebraic Geometry0103 physical sciencesFOS: MathematicsNumber Theory (math.NT)0101 mathematicsAbelian groupAlgebraic Geometry (math.AG)Projective varietyQuotientFunction fieldMathematicsMathematics - Number Theory010102 general mathematics[MATH.MATH-AG] Mathematics [math]/Algebraic Geometry [math.AG][MATH.MATH-CV]Mathematics [math]/Complex Variables [math.CV]Codimension[MATH.MATH-CV] Mathematics [math]/Complex Variables [math.CV][MATH.MATH-AG]Mathematics [math]/Algebraic Geometry [math.AG]010307 mathematical physicsVariety (universal algebra)International Mathematics Research Notices
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Rate of Mixing for the Geodesic Flow

2019

The main part of the chapter then consists in proving analogous bounds for the discrete-time and continuous-time geodesic ow for quotient spaces of simplicial and metric trees respectively.

GeodesicMetric (mathematics)Mathematical analysisGeodesic flowMixing (physics)QuotientMathematics
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Intellectual ability in young adulthood as an antecedent of physical functioning in older age.

2016

Objectives: low cognitive ability is associated with subsequent functional disability. Whether this association extends across adult life has been little studied. The aim of this study was to examine the association between intellectual ability in young adulthood and physical functioning during a 10-year follow-up in older age.Methods: three hundred and sixty persons of the Helsinki Birth Cohort Study (HBCS) male members, born between 1934 and 1944 and residing in Finland in 1971, took part in The Finnish Defence Forces Basic Intellectual Ability Test during the first 2 weeks of their military service training between 1952 and 1972. Their physical functioning was assessed twice using the Sh…

GerontologyMaleAgingPhysical fitnessIntelligencefyysinen toimintakykycognitive functioningArticleolder people03 medical and health sciencesYoung Adult0302 clinical medicinevanhuusintellectual abilitySurveys and QuestionnairesIntellectual disabilitymedicinephysical functioningHumans030212 general & internal medicineCognitive skillYoung adultSocioeconomic statusFinlandold ageAgedIntelligence TestsIntelligence quotientbusiness.industryAge Factorsta3141Cognitionta3142General MedicineMiddle Agedmedicine.diseaseVerbal reasoningMilitary PersonnelPhysical FitnessFemaleGeriatrics and GerontologyPsychologybusiness030217 neurology & neurosurgeryAge and ageing
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Clinical Significance of Measuring Prostate-Specific Antigen

2009

The incidence of prostate-specific antigen (PSA) monitoring has increased in recent years. However, interpretation of the results is often ambiguous and leads to uncertainty for both the patient and the treating physician. Advantages and disadvantages of measuring PSA and possibilities for improved interpretation using the variable PSA quotient are given. After reading this article, readers should be able to better interpret PSA values and assess the risk of prostate carcinoma using PSA quotient. In addition, errors associated with PSA and PSA quotient measurement are compared and discussed. Chemistry exam 20907 questions and corresponding answer form are located after this CE Update on pag…

GynecologyOncologymedicine.medical_specialtybusiness.industryBiochemistry (medical)Clinical BiochemistryProstate carcinomaurologic and male genital diseasesProstate-specific antigenInternal medicinemedicineClinical significancebusinessQuotientLaboratory Medicine
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Ancient Haplotypes at the 15q24.2 Microdeletion Region Are Linked to Brain Expression of MAN2C1 and Children's Intelligence

2016

The chromosome bands 15q24.1-15q24.3 contain a complex region with numerous segmental duplications that predispose to regional microduplications and microdeletions, both of which have been linked to intellectual disability, speech delay and autistic features. The region may also harbour common inversion polymorphisms whose functional and phenotypic manifestations are unknown. Using single nucleotide polymorphism (SNP) data, we detected four large contiguous haplotype-genotypes at 15q24 with Mendelian inheritance in 2,562 trios, African origin, high population stratification and reduced recombination rates. Although the haplotype-genotypes have been most likely generated by decreased or abse…

HeredityAutism Spectrum DisorderIntelligenceSocial SciencesChromosome DisordersMAN2C1 geneFamiliesMicePsychologylcsh:ScienceChildChildrenIn Situ HybridizationCognitive ImpairmentIntelligence Testseducation.field_of_studyIntelligence quotientBrainGenomicsNeurologyChromosome DeletionHumanGenotypeEvolutionSingle-nucleotide polymorphismFluorescenceEvolution Molecular03 medical and health sciencesalpha-MannosidaseIntellectual DisabilityMannosidasesGeneticsChromosome 15q24 2HumansPolymorphismeducationChromosome Aberrationslcsh:RHaplotypePair 15PongoBiology and Life SciencesComputational BiologyMolecularmedicine.diseaseIntellectual Disability/genetics030104 developmental biologyNeurodevelopmental DisordersDevelopmental PsychologyAfricalcsh:QPopulation GroupingsGene expressionEthiopiaAutismePopulation GeneticsNeuroscience0301 basic medicineAutismlcsh:MedicineGene ExpressionHomozygosityGeographical LocationsCohort StudiesChromosome Disorders/geneticsIntellectual disabilityMedicine and Health SciencesIn Situ Hybridization FluorescenceSegmental duplicationMannosidases/geneticsGeneticsMultidisciplinaryGenomeCognitive NeurologyHomozygoteSingle NucleotidePhenotypesymbolsInfantsResearch ArticleCognitive NeurosciencePopulationInfants -- DesenvolupamentBiologyPolymorphism Single NucleotideChromosomessymbols.namesakeDevelopmental NeurosciencemedicineAnimalsBrain/metabolismCromosomes humans -- AnomaliesAlleleChromosomes Human Pair 15Evolutionary BiologyPopulation BiologyGenome HumanChromosome 15qIntelligence/geneticsGenome AnalysisGenomic LibrariesExpressió gènicaMacaca mulattaRatsHaplotypesAge GroupsPeople and PlacesMendelian inheritanceCognitive Science
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Mirror quintics, discrete symmetries and Shioda maps

2008

In a recent paper, Doran, Greene and Judes considered one parameter families of quintic threefolds with finite symmetry groups. A surprising result was that each of these six families has the same Picard Fuchs equation associated to the holomorphic 3-form. In this paper we give an easy argument, involving the family of Mirror Quintics, which implies this result. Using a construction due to Shioda, we also relate certain quotients of these one parameter families to the family of Mirror Quintics. Our constructions generalize to degree n Calabi Yau varieties in (n-1)-dimensional projective space.

High Energy Physics - TheoryPure mathematicsAlgebra and Number TheoryHolomorphic functionFOS: Physical sciencesSymmetry groupPicard–Fuchs equationQuintic functionAlgebraMathematics - Algebraic GeometryMathematics::Algebraic GeometryHigh Energy Physics - Theory (hep-th)mirror symmetry shioda mapsHomogeneous spaceFOS: MathematicsProjective spaceCalabi–Yau manifoldSettore MAT/03 - GeometriaGeometry and TopologyAlgebraic Geometry (math.AG)QuotientMathematicsJournal of Algebraic Geometry
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