• 摘要

一年一度的春节到了。值此新春佳节之际，请接受我们最诚挚的祝愿：祝各位朋友们新春快乐、身体健康、阖家幸福、心想事成，取得事业上的更大成功。

CAM通讯在春节期间将暂停一期，新的一期将在3月14日再与大家见面。

祝各位朋友们春节快乐！

汤    涛 香港浸会大学数学系
许跃生 中山大学应用计算科学研究院
乔中华 香港理工大学应用数学系

• 摘要

2015年1月31日，以“责任、创新、奉献”为主题的中国计算机学会（CCF）颁奖大会在京举行。我院陆汝钤院士荣获2014 CCF终身成就奖，中国工程院院士、中国计算机学会名誉理事长李国杰为其颁奖。 

陆汝钤院士从事包括编译理论、定理证明、形式语言理论、形式语义学、量子自动机等多方面的研究，在知识工程和基于知识的软件工程方面做了系统的、创造性的工作，是我国该领域研究的开拓者之一。 

中国计算机学会终身成就奖于2010年设立，简称CCF终身成就奖，授予70岁以上、在计算机领域做出卓越成就与贡献、被业界广泛认可的科学家。

• 摘要

1月24-25日，由北京师范大学非线性分析研究中心主办的第五届“BNU-PDE Workshop”之—：青年PDE会议在北京师范大学后主楼1124举行。本次会议的报告人主要以国内“70后、80后”在偏微分方程领域已有一定影响力的青年教师为主。来自中国科学院数学与系统科学研究院、北京大学、复旦大学、华中师范大学、兰州大学、华南理工大学等国内著名高校的青年教师和我院青年教师代表共16位报告人，分别就各自领域的最新进展进行了展示与交流，为北师大偏微分方程组的青年教师和研究生的成长提供了一个广阔的平台，对加强他们与国内专家同行的交流和合作起到了积极的作用。来自北京交通大学、北京化工大学、北京航空航天大学、北京邮电大学、北京农业大学、中央财经大学、中央民族大学等院校的老师学生50余人参加了本次会议。

• 摘要

１. BICMR-CNRS Lectures in Mathematics - Integral Formulas and Serre Duality for the Cauchy-Riemann Equation

Speaker(s)Christine Laurent, Université Joseph Fourier, Institut Fourier
DateFrom 2015-04-27 To 2015-05-08
VenueRoom 29 at Quan Zhai, BICMR

Speaker：Christine Laurent, Université Joseph Fourier, Institut Fourier

Sponsored by：BCIMR, CNRS, Mount Everest Project

Time：10:00-12:00, From 2015-04-27 to 2015-04-30, 2015-05-05 to 2015-05-08

Venue：Room 29 at Quan Zhai, BICMR

Abstract：The Cauchy-Riemann equation is one of the most important tools in complex analysis. Different approaches are possible to study this equation, here we will focus on the theory of integral representations developped by Grauert, Lieb, Henkin in the 70’s for the local study and use the Grauert’s bumping method to derive global results from the local ones.

The obstruction to the solvability of the Cauchy-Riemann equation on a complex manifold is given by the Dolbeault cohomology groups. We will study these groups in several settings: for smooth forms, for Lp form or for currents. The vanishing of a Dolbeault cohomology group in some setting is equivalent to the solvability of the Cauchy-Riemann equation in the same setting, the finiteness says that the obstruction is rather small.

For some problems, it is natural to introduce support conditions in the study of the Cauchy-Riemann equation, the case of compact supports is of great importance. 
Serre duality will give some relation between the usual Dolbeaut cohomology and the Dolbeault cohomology with compact support.

Applications to the extension of CR functions and to the solvability of the Cauchy-Riemann equation with prescribe support will be given.

2. BICMR-CNRS Lectures in Mathematics--Entire Holomorphic Curves and Algebraic Differential Equations

Speaker(s)Jean-Pierre Demailly, Université Joseph Fourier,Institut Fourier
DateFrom 2015-04-07 To 2015-06-18
VenueRoom 77201 at #78 courtyard, Beijing International Center for Mathematical 
Research/Room 29 at Quan Zhai, BICMR

Speaker：Jean-Pierre Demailly, Université Joseph Fourier, Institut Fourier

Sponsored by：BCIMR, CNRS, Mount Everest Project

Time： Every Tuesday & Thursday, 14:00-16:00, From 2015-04-7 to 2015-06-18

Venue: Classroom 77201(2015-04-07 to 2015-06-11), Classroom Quan29 (2015-06-16 to 2015-06-18)

Abstract：The geometry of projective algebraic varieties is intimately related to positivity or negativity properties of their curvature tensor. In the introduction, we will first recall some basic concepts of complex differential geometry: 
complex manifolds, Dolbeault cohomology, vector bundles, connections, Chern classes, holomorphic Morse inequalities. These fundamental concepts will then be used to investigate the existence of entire holomorphic curves drawn in projective algebraic varieties. This problem is related to deep conjectures concerning number theory (Diophantine equations) and,in a more algebraic setting, to curvature properties of jet bundles. The ultimate goal will be to prove a recent result of the lecturer in the direction of the Green-Griffiths-Lang conjecture, according to which every entire curve drawn in a variety of general type satisfies algebraic differential equations.

• 摘要

Postdoctoral fellows (6) and Computational software engineers (4) in Beijing Computational Science Research Center
 
 
Beijing Computational Science Research Center (CSRC) – a newly established interdisciplinary institute in China is recruiting multiple postdoctoral fellow and computational software engineer positions (http://www.csrc.ac.cn) to conduct top research in computational sciences in condensed matter physics, quantum optics, biological sciences, and material sciences and advance algorithm developments.  
 
Postdoc Positions: The initial appointment for the postdoc position will be for two years with a possible renewal for the third with an annual salary of from 150,000 to 240,000 RMB and research funding, housing and transportation benefits are also provided.   The potential candidates should demonstrate record of top quality research work in computational and interdisciplinary research.  
 
Postdoc Position P1 - Novel numerical methods for first principle modeling of materials:  Development of novel numerical methods for solving Kohn-Sham density functional theory with hybrid exchange correlation functionals; for quantum transport computations; and for excited state methods. A PhD in Applied Math, Physics, Chemistry or Engineering is required and with strong expertise in parallel programming (MPI and C++).  (Supervisor: Prof. Lin Lin, Math, UC Berkeley and Prof. Cai Wei, Algorithms, CSRC)
 
Postdoc Position P2- Mesoscale modeling of low dimensional materials: Development of novel numerical methods for coupling first principle electronic structure theories with atomistic scale models, for the efficient treatment of low-dimensional materials at the mesoscale level. Development of accurate interatomic potential that is consistent with first principle description, with applications to large scale materials.  A PhD in Applied Math, Physics, Chemistry or Engineering is required and experience with strong experience in computer programming. (Supervisor: Prof. Lin Lin, Math, UC Berkeley and Prof.  Cai Wei,Algorithms, CSRC)

Postdoc Position P3- Stochastic multiscale modeling of soft materials: We are in developing a mathematical and computational framework at the mesoscale, bridging the scale between microscale and continuum descriptions of materials, focusing primarily on soft matter and complex fluids. A PhD in Applied Math, Physics or Engineering is required as well as familiarity with microscopic, mesoscopic and continuum methods, including  stochastic PDEs. (Supervisor: Prof. George Karniadakis, Applied Math, Brown Univ. and  Prof. Cai Wei, Algorithms, CSRC)

Postdoc Position P4- Computational Electromagnetics for random media: To develop a new high order volume integral equation method for simulating electro-magnetic wave scattering of random surfaces over layered media with application in nano-photonics and surface enhanced Raman scattering.  (Supervisor: Prof. Cai Wei, Algorithms, CSRC).
 
Postdoc Position P5: Continuum phase field modeling of catalyzed growth of semiconductor nanowires. Development of phase field simulation program suitable for large scale parallel computers based on the existing serial implementation.Investigating the mechanisms of morphological changes (instabilities) during nanowire nucleation and growth. Coupling with atomistic models of nanowire growth (Supervisor: Prof. Wei Cai, Mechanical Engineering, Stanford)
 
Postdoc Position P6-  Molecular dynamics simulation at experimental time-scale: to study the mechanical properties of structural materials at finite temperature and high stress. We try to understand longtime-scale properties, such as diffusion, creep etc. The time-scale in our simulation should be comparable to the experimental time-scale.  (Supervisor: Dr. Peng-fei Guan, CSRC).
 
Software Engineer Positions: The initial appointment for the engineer position will be for three years with an annual salary of from 150,000 to 180,000 RMB. Candidates should have ample experience in developing computational software for scientific computing projects in high performance parallel computing systems. Generous fringe benefits include housing allowance and transportation.  Engineer position can eventually become staff members at the center after successful performance reviews.
 
Engineer Position E1 - Localized molecular orbital DFT with solvation models: The software engineer will lead the code development of a mutliscale method integrating density functional theory using non-orthogonal localized molecular orbitals, molecular mechanics and solvation and polarization models for solvent and dielectric environments. The target open-source software will be capable of simulating complex physical systems in condensed phases with accurate force calculations in molecular dynamics simulations. The considerable candidate should be experienced in developing scientific codes for parallel computer architectures in Fortran, C/C++ and parallel programming (CUDA, OpenCL, Open MPI, etc).  A Ph.D. in physics or quantum chemistry or applied mathematics is required.  (Project will be supervised by Prof. Weitao Yang, Chemistry, Duke)
 
Engineer Position E2 - Kohn-Sham DFT and pole expansion and selected inversion (PEXSI) 
method: This software engineer will lead the code development of efficient parallel algorithms for solving Kohn-Sham density functional theory on GPU and Intel KNL architectures, based on the pole expansion and selected inversion (PEXSI) method.  The target open-source software will be capable of simulating large scale materials and chemical systems with reduced order scaling, and can be readily used by multiple electronic structure software packages such as SIESTA, CP2K, BigDFT, FHI-aims, DGDFT etc. The considerable candidate should be proficient in developing scientific codes for parallel computer architectures in C++, MPI, OpenMP and CUDA.  A Ph.D. in applied mathematics, physics, chemistry or engineering is required. (Project will be supervised by Prof. Lin Lin, Math, UC Berkeley).
 
Engineer Position E3 - X-ray and CryoEM data analysis in biology: Develop software and algorithm to analyze experimental data, with a focus on the research of biological systems. This is under a general framework that integrates experimental information with the theoretical modeling and simulations. The specific tasks are: Develop programs to process raw data, reduce images to meaningful profiles; Apply and Develop algorithms to convert profiles to model information, such as 3D structures, distance constraints; Based on the models, propose hypothesis about the mechanism for further experimental validations. The data sources include but not limited to  X-ray scattering/diffraction data, especially the experimental data from X-ray free electron lasers; CryoEM data collected using the advanced detectors; Single molecule Fluorescence data, including particle tracking, FRET etc. 
Background in the following areas is desired: physical sciences, such as physics, chemistry, computer sciences, and applied mathematics; Knowledge about programming languages, C/C++, Python, Perl; Familiar with Matlab or other scientific software. (Project will be supervised by Prof. Leihan Tang and Haiguan Liu, CSRC).

Engineer Position E4 - Dislocation dynamics ParaDis program: The software engineer will lead the code development of ParaDiS, a massively parallel dislocation dynamics program for predicting metal plasticity.  The target is to extend the time step size and total plastic strain capability of the ParaDiS program by using advanced time integration methods and computational architectures (such as GPUs).  The considerable candidate should be experienced in developing scientific codes for parallel computer architectures in C/C++ and parallel programing (MPI, OpenMP, CUDA, etc).  A PhD in materials science, mechanical engineering, physics, or applied mathematics is required. (Project will be supervised by Prof. Wei Cai, Mechanical Engineering, Stanford)
 
Applications should consist of curriculum vitae, including a list of publications, summary of future research plans, and three letters of reference. Please identify the position code in your application. Application materials should be electronically sent to Ms. Juan Yang by email yangjuan@csrc.ac.cn with subject line “Algorithms Postdocs” or “Algorithm Engineers”.  Positions are available immediately.

• 摘要

The purpose of this international conference is to bring experts from different disciplines together to exchange ideas and identify new research opportunities in analyzing large scale data in which sparsity and optimization play an essential role.This conference is part of the ICCM-CAM conference series.

In recent years, there has been an explosive growth in developing new efficient algorithms to represent large scale data or multiscale solutions. The L1-based optimization, sparsity, and low rank structures have played in an important role in the recent developments of compressed (compressive) sensing and various fast algorithms for image processing, data analysis and high frequency wave propagation. Many problems in multiscale solutions and stochastic PDEs with high dimensional input variables enjoy low rank structure when the solution is projected to some appropriately chosen data-driven basis. At the same time, there is a lot of progress in developing adaptive data analysis methods for analyzing nonlinear nonstationary data. These methods can reveal some intrinsic physical features from multiscale data. Statistical analysis has also played a significant role in modern data analysis. 
This workshop will bring experts from these different disciplines together to exchange ideas and identify new research opportunities at the interface between information science and physical sciences.

Date: March 18 - 22, 2015

Location: Conference Hall on the first floor of Siyuan Building, Academy of Mathematics and System Science (AMSS), Beijing

Website: http://osada.csp.escience.cn/dct/page/1 (Registration will be closed on March 1, 2015.)

Contact Information: Mr. Guangqiang Tie, Tel: +86 10 6255 8381, E-mail: gqtie@math.ac.cn

• 摘要

http://www.springer.com/10114

In this issue (12 articles)
 
Functional inequalities in non-Archimedean normed spaces
Choonkil Park  31(3), Pages 353-366 (2015)
 
The fractional metric dimension of permutation graphs
Eunjeong Yi  31(3), Pages 367-382 (2015)
 
Long-term analysis of degenerate parabolic equations in ℝ N  
Gao Cheng Yue, Cheng Kui Zhong  31(3), Pages 383-410 (2015)
 
Blow-up dynamics of L2 solutions for the Davey-Stewartson system
Shi Hui Zhu  31(3), Pages 411-429 (2015)
 
Endpoint estimates for Marcinkiewicz integrals on weighted weak hardy spaces
Yan Lin, Mei Xu  31(3), Pages 430-444 (2015)
 
Context-free grammars for triangular arrays
Robert X. J. Hao, Larry X. W. Wang, Harold R. L. Yang  31(3), Pages 445-455 (2015)
 
Estimation of partially specified spatial panel data models with random-effects
Yuan Qing Zhang, Guang Ren Yang  31(3), Pages 456-478 (2015)
 
A positive solution for some critical p-Laplacian systems
Xiao Zhi Wang  31(3), Pages 479-500 (2015)
 
On Laguerre form and Laguerre isoparametric hypersurfaces
Jian Bo Fang  31(3), Pages 501-510 (2015)
 
Additive hazards regression with random effects for clustered failure times
Deng Pan, Yan Yan Liu, Yuan Shan Wu  31(3), Pages 511-525 (2015)
 
Expansions for the distribution and the maximum from distributions with an asymptotically gamma tail when a trend is present
Christopher S. Withers, Saralees Nadarajah  31(3), Pages 526-542 (2015)
 
Complexity analysis of an interior point algorithm for the semidefinite optimization based on a kernel function with a double barrier term
Mohamed Achache  31(3), Pages 543-556 (2015)

• 摘要

http://www.springerlink.com/content/1674-7283/
 
Progress of Projects Supported by NSFC
 
Objective triangle functors
RINGEL Claus Michael, ZHANG Pu
Sci China Math, 58(2), 2015, pp. 221-232
doi:10.1007/s11425-014-4954-4
 
Multiplicity one theorems, S-version
WANG Song
Sci China Math, 58(2), 2015, pp. 233-256
doi:10.1007/s11425-014-4924-x
 
Ground states of a nonlinear Schr?dinger system with nonconstant potentials
LIU HaiDong, LIU ZhaoLi
Sci China Math, 58(2), 2015, pp. 257-278
doi:10.1007/s11425-014-4914-z
 
Integrable discretization of soliton equations via bilinear method and B?cklund transformation
ZHANG YingNan, CHANG XiangKe, HU Juan, HU XingBiao, TAM Hon-Wah
Sci China Math, 58(2), 2015, pp. 279-296
doi:10.1007/s11425-014-4952-6
 
A family of symmetric mixed finite elements for linear elasticity on tetrahedral grids
HU Jun, ZHANG ShangYou
Sci China Math, 58(2), 2015, pp. 297-307
doi:10.1007/s11425-014-4953-5
 
Articles
 
Hardy spaces Hp over non-homogeneous metric measure spaces and their applications
FU Xing, LIN HaiBo, YANG DaChun, YANG DongYong
Sci China Math, 58(2), 2015, pp. 309-388
doi:10.1007/s11425-014-4956-2
 
A Marcinkiewicz criterion for Lp-multipliers related to Schr?dinger operators with constant magnetic fields
DENG LiuRui, MA BoLin, LIU ShaoYue
Sci China Math, 58(2), 2015, pp. 389-404
doi:10.1007/s11425-014-4866-3
 
Weakly k-hyponormal and polynomially hyponormal commuting operator pairs
DUAN YongJiang, TingTing
Sci China Math, 58(2), 2015, pp. 405-422
doi:10.1007/s11425-014-4916-x
 
A Cheeger-Müller theorem for symmetric bilinear torsions on manifolds with boundary
SU GuangXiang
Sci China Math, 58(2), 2015, pp. 423-446
doi:10.1007/s11425-014-4931-y
 
Gradient estimates and coupling property for semilinear SDEs driven by jump processes
SONG YuLin
Sci China Math, 58(2), 2015, pp. 447-458
doi:10.1007/s11425-014-4836-9

• 摘要

http://www.springeronline.com/journal/10915

A Frequency-Domain Approach for the P1 Approximation of Time-Dependent Radiative Transfer
Mohamed Addam, Abderrahman Bouhamidi and Mohammed Seaid, pp.623-651.

Convergence Analysis of a Minimax Method forFinding Multiple Solutions of Semilinear Elliptic Equation: Part I -- On Polyhedral Domain
Xudong Yao, pp.652-673.

Design of Loop's Subdivision Surfaces by Fourth-Order Geometric PDEs with G1 Boundary Conditions
Guoliang Xu and Qing Pan, pp.674-692.

KdV Equation and Computations of Solitons: Nonlinear Error Dynamics
V.M. Ashwin, K. Saurabh, M. Sriramkrishnan, P.M. Bagade, M.K. Parvathi and Tapan K. Sengupta,pp.693-717.

Numerical Algorithms for the Forward and Backward Fractional Feynman–Kac Equations
Weihua Deng, Minghua Chen and Eli Barkai,pp.718-746.

Compact Crank–Nicolson Schemes for a Class of Fractional Cattaneo Equation in Inhomogeneous Medium
Xuan Zhao and Zhi-Zhong Sun, pp.747-771.

Runge–Kutta Residual Distribution Schemes
Andrzej Warzynski, Matthew E. Hubbard and Mario Ricchiuto, pp.772-802.

The Entropy Satisfying Discontinuous Galerkin Method for Fokker-Planck equations
Hailiang Liu and Hui Yu, pp.803-830.

A Level Set Approach Reflecting Sheet Structure with Single Auxiliary Function for Evolving Spirals on Crystal Surfaces
T. Ohtsuka, Y.-H. R. Tsai and Y. Giga,pp.831-874.

Numerical Treatment of Interfaces for Second-Order Wave Equations
Florencia Parisi, Mariana Cecere, Mirta Iriondo and Oscar Reula, pp.875-897.

Numerical Investigations of an Implicit Leapfrog Time-Domain Meshless Method
Guido Ala and Elisa Francomano, pp.898-912.

High-Order Flux Reconstruction Schemes with Minimal Dispersion and Dissipation
Kartikey Asthana and Antony Jameson, pp.913-944.

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End of CAM Digest
本期到此结束