Bloch's Theorem - Factbites
 Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Bloch's Theorem


    Note: these results are not from the primary (high quality) database.


Related Topics

In the News (Mon 28 May 12)

  
 Introduction
For such a class of mappings, it is possible to find a Bloch theorem in
Since confirmation of the Bieberbach conjecture by de Branges, perhaps the outstanding open problem in complex analysis is that of finding the exact value of the Bloch constant.
In this paper, we introduce Bloch constants for other classes of mappings and find one which is precisely equal to the classical Bloch constant
www.3dfractals.com /bloch/node1.html

  
 Final remarks
The Picard theorem follows from Bloch's theorem in one variable.
In this connection, we have some interesting consequences of Theorem 11 which can be interpreted as an other kind of little Picard theorem for bicomplex numbers:
However, here we can directly find a Picard theorem without invoking our Bloch theorem.
www.3dfractals.com /bloch/node5.html   (144 words)

  
 Fast guide to Density Functional Calculations
Since the computational tools presented at this workshop originate from the study of periodic systems, I will briefly discuss the underlying concepts, in particular the Brillouin zone, Bloch's theorem, the Bloch wavefunctions in a periodic crystal and the band energies.
First derivatives of the total energy are easy to evaluate using the Hellmann-Feynman theorem.
The basic quantity for the structural and dynamical properties of a condensed matter system is the combined total energy of the atomic nuclei and the electronic system.
www.fhi-berlin.mpg.de /th/Meetings/FHImd2003/Dabstracts/kratzer1.html   (144 words)

  
 Final remarks
The Picard theorem follows from Bloch's theorem in one variable.
In this connection, we have some interesting consequences of Theorem 11 which can be interpreted as an other kind of little Picard theorem for bicomplex numbers:
However, here we can directly find a Picard theorem without invoking our Bloch theorem.
www.3dfractals.com /bloch/node5.html   (144 words)

  
 Bloch wave - Wikipedia, the free encyclopedia
A Bloch wave or Bloch state is the wavefunction of a particle (usually, an electron) placed in a periodic potential.
The concept of the Bloch state was developed by Felix Bloch in 1928, to describe the conduction of electrons in crystalline solids.
A corollary of this result is that the Bloch wavevector k is a conserved quantity in a crystalline system (modulo addition of reciprocal lattice vectors), and hence the group velocity of the wave is conserved.
en.wikipedia.org /wiki/Bloch_wave   (568 words)

  
 4 Bloch wave method.
The Bloch wave method makes use of the Bloch theorem that states that a particular solution of the motion of the electron of total energy E in a periodic potential V(r) is of the form:
The Bloch wave approach allows to use a simple test to check that enough reflections have been introduced into the calculation: one has to repeat the calculation with one more reflection and check that the change induced in the largest eigenvalue is smaller than a given maximum.
~k(j)2) of the Schrödinger equation in the form of a Bloch wave.
cimesg1.epfl.ch /CIOL/asu94/ICT_5.html   (842 words)

  
 Nat' Academies Press, Biographical Memoirs V.64 (1994)
Bloch and London pointed out that it was necessary, on thermodynamic grounds, that the superconducting state required a minimum of the energy below the critical temperature but that at temperatures above that point a zero current state is more probable.
This work resulted in Bloch's first paper and, as he later remarked, it was a forerunner of the paper by Weisskopf and Wigner on radiation damping and the natural line widths of spectral lines.
Incidentally, the wave solution that Felix discovered was a version of what was known in mathematics as Floquet's Theorem and had been used previously by physicists without realizing its full implications for the quantum mechanics of solids.
www.nap.edu /books/0309049784/html/34.html   (5033 words)

  
 The Bloch Theorem
Felix Bloch in his "Reminiscences of Heisenberg and the early days of quantum mechanics" explains how his investigation of the theory of conductivity in metal led to what is now known as the Bloch Theorem.
For example, if the wavefunction is for a lattice with boundaries then it is not of the Bloch form.
The wavefunction of two or more interacting electrons is not of the Bloch form.
www2.sjsu.edu /faculty/watkins/bloch.htm   (292 words)

  
 Mathematics
Bloch's theorem for mappings of bounded and finite distortion, 2005, 18 pp.
Nonsymmetric conical upper density theorem for measures with finite lower density, 2005, 9 pp.
A theorem of Rado's type for the solutions of a quasi-linear equation, 2002, 4 pp.
www.math.jyu.fi /research/papers.html   (1324 words)

  
 Variations on the Bloch-Ogus Theorem, by Ivan Panin and Kirill Zainoulline
Variations on the Bloch-Ogus Theorem, by Ivan Panin and Kirill Zainoulline
We prove there is the Gersten-type exact sequence for etale cohomology with coefficients in a locally constant etale sheaf F of Z/nZ -modules on Y which has finite stalks and (n,char(k))=1.
www.mathematik.uni-osnabrueck.de /K-theory/0556   (1324 words)

  
 Graduate Catalog - 2003-2004 - Fields of Instruction - Mathematics
Theorems of Bloch, Schottky, and the big and little theorems of Picard.
Introduction to theory of numbers; theorems on divisibility; congruence, number-theoretic functions; primitive roots and indices; quadratic reciprocity law; Diophantine equations and continued functions.
Cauchy-Kowalewski theorem, first order equations, classification of equations, hyperbolic equations, elliptic equations, parabolic equations, hyperbolic systems, nonlinear hyperbolic systems, existence theory based on functional analysis.
gradschool.rgp.ufl.edu /gradcat/2003-2004/deptMathematics.html   (2145 words)

  
 full_bib.php3?mode=2&lang=e&bib_id=10459&cat=&searchsAU=&searchsTO=
Theorems of Picard, Borel, Bloch, and Schottky 3.12- Behavior of Entire Functions on Certain Angular Regions 3.13- Asymptotic Values 3.14- The Phragmen-Lindelof Function and Diagram 3.15- HANKEUS INTEGRAL FOR THE ENTIRE FUNCTION 1/[Gamma](z) 3.16- Mittag-Leffler's Function 3.17- Mittag-Leffler's Summability 3.18- Multianalytic Functions.
Weierstrass Factorization Theorem 3.6- Exponent of Convergence of the Zeros of an Entire Function 3.7- Genus and Exponential Degree of an Entire Function.
Extension of the Big Picard Theorem 4- Meromorphic Functions 4.1- Introduction 4.2- Mittag-Leffler Representation of a Meromorphic Function 4.3- Weierstrass's Factorization Theorem Derived from Mittag-Leffler's Theorem 4.4- FURTHER PROPERTIES OF THE [Gamma]-FUNCTION 4.5- The Digamma Function 4.6- Raabe's Integral and Binet's Function.
www.lib.ouhk.edu.hk /etext/full_bib.php3?mode=2&lang=e&bib_id=10459&cat=&searchsAU=&searchsTO=   (2145 words)

  
 Graduate Catalog - 2001-2002 - Fields of Instruction - Mathematics
Theorems of Bloch, Schottky, and the big and little theorems of Picard.
Introduction to theory of numbers; theorems on divisibility; congruence, number-theoretic functions; primitive roots and indices; quadratic reciprocity law; Diophantine equations and continued functions.
Cauchy-Kowalewski theorem, first order equations, classification of equations, hyperbolic equations, elliptic equations, parabolic equations, hyperbolic systems, nonlinear hyperbolic systems, existence theory based on functional analysis.
gradschool.rgp.ufl.edu /gradcat/2001-2002/deptMathematics.html   (2145 words)

  
 Hodge Theory and Complex Algebraic Geometry I - Claire Voisin - Leila Schneps - Adobe Reader PDF eBook
In between, the author proves the Kaehler identities, which leads to the hard Lefschetz theorem and the Hodge index theorem.
The book is is completely self-contained and can be used by students, while its content gives an up-to-date account of Hodge theory and complex algebraic geometry as has been developed by P. Griffiths and his school, by P. Deligne, and by S. Bloch.
This is a modern introduction to Kaehlerian geometry and Hodge structure.
www.ebookmall.com /ebook/168051-ebook.htm   (842 words)

  
 Graduate Catalog - 2001-2002 - Fields of Instruction - Mathematics
Theorems of Bloch, Schottky, and the big and little theorems of Picard.
Cauchy-Kowalewski theorem, first order equations, classification of equations, hyperbolic equations, elliptic equations, parabolic equations, hyperbolic systems, nonlinear hyperbolic systems, existence theory based on functional analysis.
Polya's theorem, matroids, applications, block designs, graph theory.
gradschool.rgp.ufl.edu /gradcat/2001-2002/deptMathematics.html   (842 words)

  
 Talks in Mathematical Physics
In the talk, a theorem of Riemann-Roch type is introduced which applies to the natural Bloch line bundle over the spectral curve of the heat equation with a space- and time-dependent periodic potential.
The solution of the inverse spectral problem for this heat equation is an application of this theorem.
A Riemann Roch Theorem for Infinite Genus Riemann Surfaces with Applications to Inverse Spectral Theory
www.math.ethz.ch /~felder/talks/talksSS98.html   (494 words)

  
 Mathematics Department - Wayne State University
The remaining six chapters deal with various topics, including the Riemann mapping theorem, the Weierstrass factorization theorem, the gamma function and the Riemann zeta function, Runge's theorem, the Mittag-Leffler theorem, the Schwarz reflection principle, the monodromy theorem, Riemann surfaces, harmonic functions, Jensen's formula, the Hadamard factorization theorem, Bloch's theorem, the Picard theorems, and Schottky's theorem.
Core material: divisibility, prime numbers, greatest common divisors, the Euclidean algorithm, linear Diophantine equations, congruences, mathematical induction, the Fundamental Theorem of Arithmetic (unique factorization theorem), number and sum of divisors of an integer, linear congruences, the Chinese remainder theorem, Fermat's little theorem, Euler's theorem, Wilson's theorem, quadratic reciprocity.
This includes the Central Limit Theorem, the convergence of sequences and sums of random variables, infinitely divisible distributions, and the Strong Law of Large Numbers.
www.math.wayne.edu /pinkbook.html   (494 words)

  
 ii_synopses
Nearly-free-electron theory: Electrons in a periodic potential: Blochs theorem.
Scaling Laws in Physics and Elsewhere: Dimensional analysis and the Buckingham P theorem, general pendulum, explosions, drag in fluids, flow past a sphere, Kolmogorov spectrum of turbulence, law of corresponding states.
Fluctuations in energy, particle number and volume; Fluctuation-dissipation theorem.
www.phy.cam.ac.uk /teaching/ii_synopses.htm   (5798 words)

  
 GS
Symmetry in quantum mechanics; symmetry of the Hamiltonian and degeneracy; symmetry breaking; selection rules; the Wigner-Eckart theorem; wave functions and induced transformations; Bloch's theorem.
Definition of a group; multiplication table; cyclic groups; subgroups; cosets; Lagrange's theorem; permutation groups; isomorphism and homomorphism; conjugate elements and classes; normal subgroups and factor groups; direct product.
Definition and elementary properties; equivalence; invariant sub-spaces and reducibility; unitary representations; irreducible representations; Schur's lemmas; orthogonality theorems; characters; reduction of reducible representations; the regular representation; character tables; reduction of direct products of representations.
www.ph.ed.ac.uk /~rdb/GS.html   (5798 words)

  
 5A1335 - course info
Schrödinger particle in a periodic potential and Bloch's theorem.
Idea of the great orthogonality theorem, and the orthogonality of primitive characters.
Lifting of degeneracy when a symmetry is broken.
courses.physics.kth.se /5A1335/sif03.html   (5798 words)

  
 00001704.IDX
Romanov A Local Unique Solvability Theorem in the One-Dimensional Inverse Problem for the Maxwell-Bloch Equations 584 V.
Borisov Relaxingthe A Priori Constraints of the Fundamental Theorem of Soace Curves in El^n 411 Yu.
Valitskii Well-Posedness of the Multipoint Problem in a Hilbert Space with Given Discontinuities of a Function and Its Derivatives 428 Yu.
siba2.unile.it /bib1index/00001704.IDX   (5798 words)

  
 Gillet, Soulé: Direct images in non-archimedean Arakelov theory
We develop a formalism of direct images for metrized vector bundles in the context of the non-archimedean Arakelov theory introduced in our joint work with S. Bloch.
We prove a Riemann-Roch-Grothendieck theorem for this direct image.
[W] Combinatorial structures on toroidal varieties and a proof of the weak factorization theorem preprint,
www-mathdoc.ujf-grenoble.fr /numdam-bin/item?id=AIF_2000__50_2_363_0   (346 words)

  
 [No title]
Bloch's Theorem, Little Picard Theorem, Schottky Theorem, Great Picard Theorem.
Existence theorem and related theorems, Integral curves, Liapunov Stability.
Volume and Topology, Manifolds with boundary, de Rham Theorem, Ricci Curvature.
graduate.dongguk.edu /gs/english/curriculum/math.htm   (346 words)

  
 conferences.95.11.30
To include a discussion of Bloch's theorem and periodic boundary conditions.
Fuchs and B. Rousseau Laboratoire de Chimie-Physique des Materiaux Amorphes, Universite Paris-S= ud Transport properties in fluids can be studied at the molecular level.
Pullumbi and R. Guilard LIMSAG, Universite de Bourgogne Computational chemistry has over the past decade emerged as an efficient = tool to improve the fundamental understanding of the basic microscopic ph= enomena and to help solving industrially relevant problems.
www.ccl.net /cca/info/old-conferences/conferences.95.11.30   (14090 words)

  
 EACC: Concepts: TOC
Bloch's Theorem, Band Theory and the Periodic Model of a Polymer Chain
The Dirac Equation, the Existence of Spin, and the Non-Relativistic Hamiltonian
www.chimie.fundp.ac.be /cta/eacc/concepts_toc.html   (14090 words)

  
 Gillet, Soulé: Direct images in non-archimedean Arakelov theory
We develop a formalism of direct images for metrized vector bundles in the context of the non-archimedean Arakelov theory introduced in our joint work with S. Bloch.
We prove a Riemann-Roch-Grothendieck theorem for this direct image.
[W] Combinatorial structures on toroidal varieties and a proof of the weak factorization theorem preprint,
www-mathdoc.ujf-grenoble.fr /numdam-bin/item?id=AIF_2000__50_2_363_0   (346 words)

  
 ETH - Z
As seen first in Grothendieck's Riemann Roch theorem, these are closely intertwined.
In recent years, higher algebraic K-theory and higher Chow groups (or motivic cohomology) have seen great advances introduced by Bloch, Suslin-Voevodsky, and others.
www.math.ethz.ch /~struwe/ND/friedlander.html   (162 words)

  
 Notes Fys 208, Solid State, Spring 2002
) This is referred to as "second proof of Bloch theorem" 04.03.02 Bloch theorem via Fourier continued 06.03.02 Bloch Theorem and Tight Binding models
Einstein-Nernst relation Model for charge density distribution Model for the depletion zone The rectifying function of p-n junction 08.04.02 p-n junction 10.04.02 p-n junction (From LGJ thesis) 15.04.02 Metals Fermi Surface Explaining the fermi surface in 2 dimensions Electron motion in magnetic field Cyclotron Frequency...
Heat Conductivity Work with Debye Model: High temperature limit (see the note) The low temperature world: calorimetry with C ~ T
www.fi.uib.no /AMOS/fys208/fys208-02.html   (612 words)

  
 DOE Research and Development Accomplishments
Bloch, Felix – is recognized for his research in neutron induction and for Bloch Equations, the Bloch Theorem, and for Bloch states.
Schrieffer, J. Robert – contributed to the development of the theory of superconductivity known as the BCS Theory, for which he was awarded the 1972 Nobel Prize in Physics.
Research and development accomplishments are exemplified by more than eighty (80) Nobel Laureates affiliated with the Department of Energy or predecessor agencies.
www.osti.gov /accomplishments/index.html   (1018 words)

  
 Solid-state physics - Wikipedia, the free encyclopedia
Since Bloch's Theorem applies only to periodic potentials, and since unceasing random movements of atoms in a crystal disrupt periodicity, Bloch's Theorem is only an approximation, but it has proven to be a tremendously valuable approximation, without which most solid-state physics analysis would be intractable.
The bulk of solid-state physics theory and research is focused on crystals, largely because the periodicity of atoms in a crystal — its defining characteristic —facilitates mathematical modeling, and also because crystalline materials often have electrical, magnetic, optical, or mechanical properties that can be exploited for engineering purposes.
Solid-state physics, the largest branch of condensed matter physics, is the study of rigid matter, or solids.
en.wikipedia.org /wiki/Solid_state_physics   (1018 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.