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Geomathematics in Hungarian Geology
JOURNAL OF HUNGARIAN GEOMATHEMATICS Volume 1 Geomathematics in Hungarian Geology George Bárdossy1 1Hungarian Academy of Sciences ([email protected]) Abstract The application of mathematical methods has a long tradition in Hungary. The main bases of geomathematics are the universities of the country, more closely the departments related to geology, such as general geology, stratigraphy, paleontology, structural geology, mineralogy, pet-rography, geochemistry, hydrogeology and applied geology. The Hungarian Geological Survey, the Geological Institute of Hungary and the Geochemical Research Laboratory of the Hungarian Academy of Sciences are institutions where geomathematical methods found broad applications. Finally, some mining and exploration companies, like the Hungarian Oil Company (MOL), the Bakony Bauxite Mining Company and others are regularly using geomathematical methods, mainly for the evaluation of exploration results, for deposit and reservoir modelling and for the estimation of resources. Keywords: geomathematics, applications. The application of mathematical methods has a long tradition in Hungary. The main bases of geomathematics are the universities of the country, more closely the departments related to geology, such as general geology, stratigraphy, paleontology, structural geology, mineralogy, pet-rography, geochemistry, hydrogeology and applied geology. The Hungarian Geological Survey, the Geological Institute of Hungary and the Geochemical Research Laboratory of the Hungarian Academy of Sciences are institutions where geomathematical methods found broad applications. Finally, some mining and exploration companies, like the Hungarian Oil Company (MOL), the Bakony Bauxite Mining Company and others are regularly using geomathematical methods, mainly for the evaluation of exploration results, for deposit and reservoir modelling and for the estimation of resources. In the following examples of recent geomathematical applications are listed. -
Applied Computing and Geosciences
APPLIED COMPUTING AND GEOSCIENCES AUTHOR INFORMATION PACK TABLE OF CONTENTS XXX . • Description p.1 • Editorial Board p.2 • Guide for Authors p.3 ISSN: 2590-1974 DESCRIPTION . Applied Computing & Geosciences is an online-only, open access journal focused on all aspects of computing in the geosciences. Like its companion title Computers & Geosciences, Applied Computing & Geosciences' mission is to advance and disseminate knowledge in all the related areas of at the interface between computer sciences and geosciences. Applied Computing & Geosciences publishes original articles, review articles and case-studies. Alongside welcoming direct submissions, the journal will benefit from an Article Transfer Service which will allow the author(s) to transfer their manuscript online from Computers & Geosciences thus saving authors time and effort spent on formatting and resubmitting. Applied Computing & Geosciences offers the community an innovative, efficient and flexible route for the publication of scientifically and ethically sound articles which address problems in the geosciences which includes: Algorithms; Artificial Intelligence; Computational Methods; Computer Graphics; Computer Visualization; Data Models; Data Processing; Database Retrieval; Distributed Systems; E-Geoscience; Geocomputation; Geographical Information Systems; Geoinformatics; Geomathematics; Image Analysis; Information Retrieval; Modelling; Near and Remote Sensing Data Analysis; Ontologies; Parallel Systems; Programming Languages; Remote Sensing; Simulation; Social Media; -
2006 Executive Committee CSPG 2005 Strategic Planning Session Geoscience Mixer 2005 William (Bill) Carruthers Gu
December 11/11/05 6:16 PM Page 1 Canadian Publication Mail Contract - 40070050 $3.00 VOLUME 32, ISSUE 11 DECEMBER 2005 ■ 2006 Executive Committee ■ CSPG 2005 Strategic Planning Session ■ Geoscience Mixer 2005 ■ William (Bill) Carruthers Gussow (1908-2005) ■ 2006 CSPG CSEG CWLS Joint Convention December 11/14/05 9:19 PM Page 2 December 11/11/05 6:16 PM Page 3 CSPG OFFICE #160, 540 - 5th Avenue SW Calgary,Alberta, Canada T2P 0M2 Tel:403-264-5610 Fax: 403-264-5898 Web: www.cspg.org Office hours: Monday to Friday, 8:30am to 4:00pm CONTENTS Business Manager:Tim Howard Email: [email protected] Office Manager: Deanna Watkins Email: [email protected] Communications Manager: Jaimè Croft Larsen Email: [email protected] Conventions Manager: Lori Humphrey-Clements ARTICLES Email: [email protected] Corporate Relations Manager: Kim MacLean 2006 EXECUTIVE COMMITTEE . 28 Email: [email protected] CSPG 2005 STRATEGIC PLANNING SESSION . 33 EDITORS/AUTHORS Please submit RESERVOIR articles to the CSPG GEOSCIENCE MIXER 2005 . 35 office. Submission deadline is the 23rd day of the month, two months prior to issue date. GOOGLING GEOMORPHOLOGY . 36 (e.g., January 23 for the March issue). To publish an article, the CSPG requires digital WILLIAM (BILL) CARRUTHERS GUSSOW (1908 - 2005) . 38 copies of the document. Text should be in Microsoft Word format and illustrations should 2006 CSPG CSEG CWLS JOINT CONVENTION . 43 be in TIFF format at 300 dpi. For additional information on manuscript preparation, refer to the Guidelines for Authors published in the CSPG Bulletin or contact the editor. -
Seismic Wavefield Imaging of Earth's Interior Across Scales
TECHNICAL REVIEWS Seismic wavefield imaging of Earth’s interior across scales Jeroen Tromp Abstract | Seismic full- waveform inversion (FWI) for imaging Earth’s interior was introduced in the late 1970s. Its ultimate goal is to use all of the information in a seismogram to understand the structure and dynamics of Earth, such as hydrocarbon reservoirs, the nature of hotspots and the forces behind plate motions and earthquakes. Thanks to developments in high- performance computing and advances in modern numerical methods in the past 10 years, 3D FWI has become feasible for a wide range of applications and is currently used across nine orders of magnitude in frequency and wavelength. A typical FWI workflow includes selecting seismic sources and a starting model, conducting forward simulations, calculating and evaluating the misfit, and optimizing the simulated model until the observed and modelled seismograms converge on a single model. This method has revealed Pleistocene ice scrapes beneath a gas cloud in the Valhall oil field, overthrusted Iberian crust in the western Pyrenees mountains, deep slabs in subduction zones throughout the world and the shape of the African superplume. The increased use of multi- parameter inversions, improved computational and algorithmic efficiency , and the inclusion of Bayesian statistics in the optimization process all stand to substantially improve FWI, overcoming current computational or data- quality constraints. In this Technical Review, FWI methods and applications in controlled- source and earthquake seismology are discussed, followed by a perspective on the future of FWI, which will ultimately result in increased insight into the physics and chemistry of Earth’s interior. -
The Life and Works of Sadid Al-Din Kazeroni: an Iranian Physician and Anatomist
ORerimgiinnaisl cAernticcele Middle East Journal of Cancer; JOuclyto 2b0e1r 52 061(38);: 9(4): 323-327 The Life and Works of Sadid al-Din Kazeroni: An Iranian Physician and Anatomist Seyyed Alireza Golshani* ♦, Seyyed Ehsan Golshan**, Mohammad Ebrahim Zohalinezhad*** *Department of History, Ferdowsi University of Mashhad, Mashhad, Iran **Department of Foreign Languages, Marvdasht Azad University, Marvdasht, Iran ***Assistant Professor, Persian Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Eessence of Parsiyan Wisdom Institute, Traditional Medicine and Medicinal Plant Incubator, Shiraz University of Medical Sciences, Shiraz, Iran Abstract Background: One of the great physicians in Iran who had expertise in medicine, surgery, and pharmacy was Sadid al-Din Kazeroni. He was a 14 th century physician. No information is available on his birth and death – only “Al-Mughni”, a book, has been left to make him famous in surgical and medical knowledge. Methods: We used desk and historical research methods in this research, with a historical approach. This commonly used research method in human sciences was used to criticize and study the birthplace and works of Sadid al-Din Kazeroni. Results and Conclusion: Sadid al-Din Kazeroni discussed the exact issues in the field of anatomy, surgery, and gynecology. He was fluent in pharmacology. In his pharmacology book, for the first time, he named drugs considered necessary before and after surgery. In this study, we reviewed the biography and introduction of the works and reviewed “Al-Mughni”, a book on breast cancer. Keywords: Sadid al-Din Kazeroni, Breast cancer, Anatomical illustration, Al-Mughni, Persian medicine ♦Corresponding Author: Seyyed Alireza Golshani, PhD Student Introduction the Nobel Prize in Math. -
![Arxiv:2009.11923V1 [Math.GT] 24 Sep 2020 Manifolds One Is Interested in Studying](https://docslib.b-cdn.net/cover/5426/arxiv-2009-11923v1-math-gt-24-sep-2020-manifolds-one-is-interested-in-studying-585426.webp)
Arxiv:2009.11923V1 [Math.GT] 24 Sep 2020 Manifolds One Is Interested in Studying
A MODEL FOR RANDOM THREE{MANIFOLDS BRAM PETRI AND JEAN RAIMBAULT Abstract. We study compact three-manifolds with boundary obtained by randomly gluing together truncated tetrahedra along their faces. We prove that, asymptotically almost surely as the number of tetrahedra tends to infinity, these manifolds are connected and have a single boundary component. We prove a law of large numbers for the genus of this boundary component, we show that the Heegaard genus of these manifolds is linear in the number of tetrahedra and we bound their first Betti number. We also show that, asymptotically almost surely as the number of tetrahedra tends to infinity, our manifolds admit a unique hyperbolic metric with totally geodesic boundary. We prove a law of large numbers for the volume of this metric, prove that the associated Laplacian has a uniform spectral gap and show that the diameter of our manifolds is logarithmic as a function of their volume. Finally, we determine the Benjamini{Schramm limit of our sequence of random manifolds. 1. Introduction 1.1. Context. Random constructions of compact manifolds can be seen as an analogue of the well-established theory of random graphs and serve similar purposes. First of all, they make the notion of a \typical" manifold rigorous. Secondly, they can be used as a testing ground for conjectures of which the proof is still out of reach. Finally, there is what is often called the probabilistic method { using probability theory to prove the existence of objects with extremal properties. In this paper we are mostly interested in the first aspect. -
BLOCKS in DELIGNE's CATEGORY Rep(St) JONATHAN COMES A
BLOCKS IN DELIGNE'S CATEGORY Rep(St) by JONATHAN COMES A DISSERTATION Presented to the Department of Mathematics and the Graduate School of the University of Oregon in partial fulfillment of the requirements for the degree of Doctor of Philosophy June 2010 11 University of Oregon Graduate School Confirmation of Approval and Acceptance of Dissertation prepared by: Jonathan Comes Title: "Blocks in Deligne's Category Rep(S_t)" This dissertation has been accepted and approved in partial fulfillment ofthe requirements for the Doctor ofPhilosophy degree in the Department ofMathematics by: Victor Ostrik, Chairperson, Mathematics Daniel Dugger, Member, Mathematics Jonathan Brundan, Member, Mathematics Alexander Kleshchev, Member, Mathematics Michael Kellman, Outside Member, Chemistry and Richard Linton, Vice President for Research and Graduate Studies/Dean ofthe Graduate School for the University ofOregon. June 14,2010 Original approval signatures are on file with the Graduate School and the University of Oregon Libraries. ' iii @201O, Jonathan Comes -------- iv An Abstract of the Dissertation of Jonathan Comes for the degree of Doctor of Philosophy in the Department of Mathematics to be taken June 2010 Title: BLOCKS IN DELIGNE'S CATEGORY Rep(St) Approved: _ Dr. Victor Ostrik We give an exposition of Deligne's tensor category Rep(St) where t is not necessarily an integer. Thereafter, we give a complete description of the blocks in Rep(St) for arbitrary t. Finally, we use our result on blocks to decompose tensor products and classify tensor ideals -
Of Triangles, Gas, Price, and Men
OF TRIANGLES, GAS, PRICE, AND MEN Cédric Villani Univ. de Lyon & Institut Henri Poincaré « Mathematics in a complex world » Milano, March 1, 2013 Riemann Hypothesis (deepest scientific mystery of our times?) Bernhard Riemann 1826-1866 Riemann Hypothesis (deepest scientific mystery of our times?) Bernhard Riemann 1826-1866 Riemannian (= non-Euclidean) geometry At each location, the units of length and angles may change Shortest path (= geodesics) are curved!! Geodesics can tend to get closer (positive curvature, fat triangles) or to get further apart (negative curvature, skinny triangles) Hyperbolic surfaces Bernhard Riemann 1826-1866 List of topics named after Bernhard Riemann From Wikipedia, the free encyclopedia Riemann singularity theorem Cauchy–Riemann equations Riemann solver Compact Riemann surface Riemann sphere Free Riemann gas Riemann–Stieltjes integral Generalized Riemann hypothesis Riemann sum Generalized Riemann integral Riemann surface Grand Riemann hypothesis Riemann theta function Riemann bilinear relations Riemann–von Mangoldt formula Riemann–Cartan geometry Riemann Xi function Riemann conditions Riemann zeta function Riemann curvature tensor Zariski–Riemann space Riemann form Riemannian bundle metric Riemann function Riemannian circle Riemann–Hilbert correspondence Riemannian cobordism Riemann–Hilbert problem Riemannian connection Riemann–Hurwitz formula Riemannian cubic polynomials Riemann hypothesis Riemannian foliation Riemann hypothesis for finite fields Riemannian geometry Riemann integral Riemannian graph Bernhard -
Interview with Research Fellow Maryam Mirzakhani
Profile Interview with Research Fellow Maryam Mirzakhani Could you talk about your mathematical education? What experiences and people were especially influential? I was very lucky in many ways. The war ended when I finished elementary school; I couldn’t have had the great opportunities that I had if I had been born ten years earlier. I went to a great high school in Tehran, Farzanegan, and had very good teachers. I met my friend Roya Beheshti the first week after entering middle school. It is invaluable to have a friend who shares your interests, and helps you stay motivated. Our school was close to a street full of bookstores in Tehran. I remember how walking along this crowded street, and going to the bookstores, was so exciting for us. We couldn’t skim through the books like people usually do here in a bookstore, so we would end up buying a lot of random books. Maryam Mirzakhani, a native of Iran, is currently a professor of mathematics at Stanford. She Also, our school principal was a strong-willed completed her Ph.D. at Harvard in 2004 under the woman who was willing to go a long way to provide direction of Curtis T. McMullen. In her thesis she us with the same opportunities as the boys’ school. showed how to compute the Weil-Petersson volume Later, I got involved in Math Olympiads that made of the moduli space of bordered Riemann surfaces. me think about harder problems. As a teenager, I Her research interests include Teichmüller theory, enjoyed the challenge. -
Number-Theory Prodigy Among Winners of Coveted Maths Prize Fields Medals Awarded to Researchers in Number Theory, Geometry and Differential Equations
NEWS IN FOCUS nature means these states are resistant to topological states. But in 2017, Andrei Bernevig, Bernevig and his colleagues also used their change, and thus stable to temperature fluctua- a physicist at Princeton University in New Jersey, method to create a new topological catalogue. tions and physical distortion — features that and Ashvin Vishwanath, at Harvard University His team used the Inorganic Crystal Structure could make them useful in devices. in Cambridge, Massachusetts, separately pio- Database, filtering its 184,270 materials to find Physicists have been investigating one class, neered approaches6,7 that speed up the process. 5,797 “high-quality” topological materials. The known as topological insulators, since the prop- The techniques use algorithms to sort materi- researchers plan to add the ability to check a erty was first seen experimentally in 2D in a thin als automatically into material’s topology, and certain related fea- sheet of mercury telluride4 in 2007 and in 3D in “It’s up to databases on the basis tures, to the popular Bilbao Crystallographic bismuth antimony a year later5. Topological insu- experimentalists of their chemistry and Server. A third group — including Vishwa- lators consist mostly of insulating material, yet to uncover properties that result nath — also found hundreds of topological their surfaces are great conductors. And because new exciting from symmetries in materials. currents on the surface can be controlled using physical their structure. The Experimentalists have their work cut out. magnetic fields, physicists think the materials phenomena.” symmetries can be Researchers will be able to comb the databases could find uses in energy-efficient ‘spintronic’ used to predict how to find new topological materials to explore. -
BULLETIN of DELTA STATE UNIVERSITY (USPS) 152-880) Cleveland, Mississippi 38733 Founded April 9, 1924 Opened September 25, 1925
2011-2012ug1 pages 1-65.qxp 6/3/2011 2:47 PM Page 1 BULLETIN OF DELTA STATE UNIVERSITY (USPS) 152-880) Cleveland, Mississippi 38733 Founded April 9, 1924 Opened September 25, 1925 UNDERGRADUATE ANNOUNCEMENTS EIGHTY-FOURTH SESSION 2011-2012 CATALOG This bulletin presents information which, at the time of preparation for printing, most ac- curately describes the course offerings, policies, procedures, regulations, and requirements of the University. However, it does not establish contractual relationships. The University reserves the right to alter or change any statement contained herein without prior notice. Volume 86 June 2011 Number 2 PUBLISHED ANNUALLY BY DELTA STATE UNIVERSITY CLEVELAND, MISSISSIPPI 38733 Entered as Second-Class Matter July 1926, at the Post Office at Cleveland, Mississippi, Under the Act of February 28, 1925. Postmaster: Send change of address to Delta State University, Cleveland, Mississippi 38733 2011-2012ug1 pages 1-65.qxp 6/3/2011 2:47 PM Page 2 TABLE OF CONTENTS Board of Trustees ..................................................................................................3 The University Calendar ......................................................................................4 General Information ............................................................................................6 Facilities ............................................................................................................11 Student Activities ................................................................................................18 -
An Exact Riemann Solver and a Godunov Scheme for Simulating Highly Transient Mixed Flows F
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Journal of Computational and Applied Mathematics 235 (2011) 2030–2040 Contents lists available at ScienceDirect Journal of Computational and Applied Mathematics journal homepage: www.elsevier.com/locate/cam An exact Riemann solver and a Godunov scheme for simulating highly transient mixed flows F. Kerger ∗, P. Archambeau, S. Erpicum, B.J. Dewals, M. Pirotton Research Unit of Hydrology, Applied Hydrodynamics and Hydraulic Constructions (HACH), Department ArGEnCo, University of Liege, 1, allée des chevreuils, 4000-Liège-Belgium, Belgium article info a b s t r a c t Article history: The current research aims at deriving a one-dimensional numerical model for describing Received 26 August 2009 highly transient mixed flows. In particular, this paper focuses on the development Received in revised form 24 August 2010 and assessment of a unified numerical scheme adapted to describe free-surface flow, pressurized flow and mixed flow (characterized by the simultaneous occurrence of free- Keywords: surface and pressurized flows). The methodology includes three steps. First, the authors Hydraulics derived a unified mathematical model based on the Preissmann slot model. Second, a first- Finite volume method order explicit finite volume Godunov-type scheme is used to solve the set of equations. Negative Preissmann slot Saint-Venant equations Third, the numerical model is assessed by comparison with analytical, experimental and Transient flow numerical results. The key results of the paper are the development of an original negative Water hammer Preissmann slot for simulating sub-atmospheric pressurized flow and the derivation of an exact Riemann solver for the Saint-Venant equations coupled with the Preissmann slot.