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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：From curve counting on Calabi-Yau 4-folds to quasimaps for quivers with potentials
Calabi-Yau 曲线计数 4-folds
2023/4/23
I will start by reviewing an old joint work with Davesh Maulik and Yukinobu Toda on relating Gromov-Witten, Gopakumar-Vafa and stable pair invariants on compact Calabi-Yau 4-folds. For non-compact CY4...
Critical Temperature Curve in BEC-BCS Crossover
Strong relevant regime condensation two-component system fermion monte carlo method function
2014/12/19
The strongly correlated regime of the crossover from Bardeen-Cooper-Schrieffer pairing to Bose-Einstein condensation can be realized by diluting a system of two-component fermions with a short-range a...
Growth of solid hcp 4He off the melting curve
Frozen pressure atomic solid melt curve cells transient temperature cells solidification
2014/12/19
We report studies of the growth of solid hcp 4He at pressures higher than the bulk freezing pressure using a cell design that allows us to inject atoms into the solid. Near the melting curve during in...
Self inductance of a wire loop as a curve integral
Self inductance of a wire loop curve integral Classical Physics
2012/4/20
It is shown that the self inductance of a wire loop may be written as a curve integral akin to the Neumann formula for the mutual inductance of two wire loops. The only difference is that contribution...
The Role of Symmetry and Separation in Surface Evolution and Curve Shortening
Symmetry Separation Surface Evolution Curve Shortening Analysis of PDEs
2011/7/25
Abstract: With few exceptions, known explicit solutions of the curve shortening flow (CSE) of a plane curve, can be constructed by classical Lie point symmetry reductions or by functional separation o...
Quantum Capacitance vs Chemical Potential Universal Curve and Interface Trap Parameter Extraction in Graphene Gated Structures
Quantum Capacitance hemical Potential Universal Curve Interface Trap Parameter Extraction Graphene Gated Structures
2010/11/25
We study influence of the interface traps unavoidably occurring at or near the interface
between the graphene sheets and the insulating substrate or top gate oxide on the
capacitance characteristics...
A Bragg curve detector and its application in AMS measurements for medium-weight nuclides
Bragg curve detector isobaric identification AMS 36Cl 41Ca
2009/8/17
The schematic layout and principle of a Bragg curve detector were showed in this paper. A Bragg curve detector was systemically modified and its performance was improved. The total energy resolution o...
Bi-Hamiltonian Structure of a Third-Order Nonlinear Evolution
Equation on Plane Curve Motions
nonlinear evolution equation bi-Hamiltonian structure
hereditary operator integrability
2007/8/15
2007Vol.48No.2pp.211-214DOI:
Bi-Hamiltonian Structure of a Third-Order Nonlinear Evolution
Equation on Plane Curve Motions
REN Wen-Xiu1,2 and Alatancang1
1 Department of...
Group-Invariant Solutions in Plane Curve Motions
motion of plane curves centro-affine geometry
symmetry group spiral wave solution
2007/8/15
2003Vol.39No.4pp.401-404DOI:
Group-Invariant Solutions in Plane Curve Motions
QU Chang-Zheng
Research Center for Basics Sciences, Xi'an Jiaotong
University, Xi'an 710049...
Ermakov System and Plane Curve Motions in Affine Geometries
Pinney equation Ermakov system motion of plane curve affine geometry symmetry
group
2007/8/15
2005Vol.43No.2pp.201-204DOI:
Ermakov System and Plane Curve Motions in Affine Geometries
QU Chang-Zheng
Center for Nonlinear Studies, Northwest University, Xi'an 710069,...
The Transition Temperature of the Nuclear Caloric Curve
The Transition Temperature the Nuclear Caloric Curve
2010/10/25
Experimental studies have obtained the caloric curve of nuclear matter from heavy ion collisions as well as its dependence on the size of the fragmenting source. In particular it has been determined t...
DETERMINATION OF THE TRAPPING PARAMETERS OF GLOW PEAKS OF CAF2:DY(TLD-200) BY USING COMPUTER GLOV CURVE DECONCOLUTION METHOD
glow curve kinetics b
2010/4/15
Computerized glow curve deconvolution method is used to determine the number of peaks, the order of kinetics b, the activation energy Ea,frequency factor s and number of the trapped electrons n0 assoc...