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Posts Tagged ‘math-ph’
A semana nos arXivs…
terça-feira, 3 nov 2009; \45\UTC\UTC\k 45
Deixe um comentário
- Advanced Mechanics. Mathematical Introduction. (arXiv:0911.0411v1 [math-ph])
- Simulations of supersymmetric Yang-Mills theory. (arXiv:0911.0595v1 [hep-lat])
- New variables for the Einstein theory of gravitation. (arXiv:0911.0282v1 [hep-th])
- Spectral geometry as a probe of quantum spacetime. (arXiv:0911.0401v1 [hep-th])
- Spacetime and fields. (arXiv:0911.0334v1 [gr-qc])
- Skew-symmetric forms: On integrability of equations of mathematical physics. (arXiv:0910.5849v1 [math-ph])
- Dyson’s Instability in Lattice Gauge Theory. (arXiv:0910.5785v1 [hep-lat])
- Time, Topology and the Twin Paradox. (arXiv:0910.5847v1 [gr-qc])
- Feynman Propagator for a Free Scalar Field on a Causal Set (PhysRevLett)
- Beyond fractional derivatives: local approximation of other convolution integrals (RSPA)
- Stochastic expansions and Hopf algebras (PRSA)
- Gravity from a Particle Physicists’ perspective. (arXiv:0910.5167v1 [hep-th])
- Holography from conformal field theory (JHEP)
- Motivic Donaldson-Thomas invariants: summary of results. (arXiv:0910.4315v1 [math.AG])
- Asymptotic safety in gravity and sigma models. (arXiv:0910.4951v1 [hep-th])
- Lectures on holographic methods for condensed matter physics (ClassQuantGrav)
- Energy Landscape of Social Balance (PhysRevLett)
- Thermodynamics shows US chief executives are paid nearly 130 times too much
- This Week’s Finds in Mathematical Physics (Week 282)
- Cheaper Online Textbooks?
- Chern Classes: Part 1
- Vitaly Ginzburg: a life in physics
- Interview with Manin
- Logicomix: An Epic Search for Truth
- Dreams of Better Schools
- My research paper was rejected to be published. What can I do?
- Explained: P vs. NP: The most notorious problem in theoretical computer science remains open, but the attempts to solve it have led to profound insights
- The Ph.D. Problem: On the professionalization of faculty life, doctoral training, and the academy’s self-renewal
- Race ends in dead heat; Einstein wins
- How messy it all is: Why More Equal Societies Almost Always Do Better
- Soros: Open Society
- What’s wrong with copyright? e Copyright: Want more artistic creation? Protect it less
- Graph Theory to the rescue
- Paul Dirac: Engineer, mathematician, philosopher, physicist
- The Waterloo Institute for Complexity & Innovation
- Lectures on Functional Programming (using Haskell)
Anúncios
A semana nos arXivs…
terça-feira, 20 out 2009; \43\UTC\UTC\k 43
1 comentário
- Y-system and Quasi-Classical Strings. (arXiv:0910.3608v1 [hep-th]) — mais um passinho na direção de se demonstrar a dualidade AdS/CFT
- Matter from Space. (arXiv:0910.2574v1 [physics.hist-ph])
- Higher-dimensional numerical relativity: Formulation and code tests (PhysRevD)
- Grothendieck’s definition of a group (alguém disse Langlands Duality? 😎 )
- Destino: Animação Surrealista de Salvador Dali e Walt Disney
- O início de uma moderna revolução: Colunista associa período modernista ao surgimento de modelos que romperam com a física clássica — esse artigo vem em contrapartida a um que eu já citei anteriormente (semana passada), mas cito de novo, Abstract Science?
- Higgs, Dark Matter and Supersymmetry: what the LHC will tell us — o interessante mesmo é a citação do Weinberg, sobre o futuro da Teoria de Cordas —, mais comentários podem ser lidos no seguinte link: comentários do Weinberg sobre o LHC, o “Higgs” e Supercordas
- Brazil is the 21st-century power to watch — é um artigo bem escrito, no sentido de que o autor, sutilmente, aponta praquilo que o Brasil realmente tem de potencial; mas, esse não foi um artigo escrito pra ser balanceado e equilibrado em suas visões, então as descrições da violência, etc, são bem superficiais (não necessariamente incorretas, mas enviesadas…)
- My Life as a Quant: Reflections on Physics and Finance: pra quem está pensando em ingressar no Mercado Financeiro, essa é uma boa dica de livro, principalmente pra quem é mais quantitativo
E, pra quem ainda não sabe, o Michael Green (um dos autores dos volumes Superstring theory: Introduction e Superstring theory: Loop Amplitudes, Anomalies and Phenomenology — ainda um dos melhores livros sobre o assunto) foi o escolhido pra substituir o Hawking na Cátedra Lucasiana: Michael Green elected to Hawking’s Cambridge post — entre outros, o Witten e o Maldacena declinaram a oferta.
Categorias:arXiv, gr-qc, hep-lat, hep-th, math-ph, Mathematics, Physics, Science, Science 2.0
AdS/CFT, arXiv, finance, gr-qc, Grothendieck, Hawking, hep-lat, hep-th, Higgs, Lucasian, Maldacena, math-ph, Michael Green, Salvador Dali, Schwarz, Walt Disney, Weinberg, Witten
A semana nos arXivs…
domingo, 18 out 2009; \42\UTC\UTC\k 42
6 comentários
Esta edição vem um pouco atrasada… mas, vem mais recheada também. 😉
- Superstring field theory equivalence: Ramond sector (JHEP)
- Quantum geometry and quantum dynamics at the Planck scale. (arXiv:0910.2936v1 [gr-qc])
- GGI Lectures on the Pure Spinor Formalism of the Superstring. (arXiv:0910.2254v1 [hep-th])
- The group aspect in the physical interpretation of general relativity theory. (arXiv:0910.2073v1 [gr-qc])
- The twin paradox and Mach’s principle. (arXiv:0910.1929v1 [gr-qc])
- A Review and Demonstration of The Essence of Chaos by Edward N. Lorenz. (arXiv:0910.2213v1 [nlin.CD])
- Global well-posedness of the Maxwell-Klein-Gordon equation below the energy norm. (arXiv:0910.1850v1 [math.AP]), com direito a comentários do próprio autor: Global wellposedness for the Maxwell-Klein-Gordon equation below the energy norm
- Generalized instantons in N=4 super Yang-Mills theory and spinorial geometry (JHEP)
- Ten-Dimensional Super-Twistors and Super-Yang-Mills. (arXiv:0910.1684v2 [hep-th])
- A bound on 6D N=1 supergravities. (arXiv:0910.1586v2 [hep-th])
- Building the International Lattice Data Grid. (arXiv:0910.1692v1 [hep-lat])
- Photonic Thermos (sim, é uma garrafa térmica fotônica 😯 )
- Girih by Egan
- The Speed Of Computing
- Abstraction has its place in science as it does in art
- Malcolm Gladwell: How different are dogfighting and football?
- Cleverness is no more. This is a dumb Britain
- Windows Does Not Scale — alguém ainda se surpreende com essas notícias?! 😛
- A Brief History of Gummy Bears — putz, eu adoro gummy bears! 😎
- ChromeOS to be based on Debian — pra quem ainda não sabia… o Google usa Debian há muUuito tempo 😉
- On transparency in research funding
- Math Geek Mom: Women in Science and Math
- Aaron Toponce: A Case For HTML Email — Mashups: confesso que ainda não estou convencido… mas, parece que os argumentos estão ficando cada vez mais fortes… 💡
A semana nos arXivs…
quinta-feira, 8 out 2009; \41\UTC\UTC\k 41
7 comentários
- Lectures on Differential Geometry of Modules and Rings. (arXiv:0910.1515v1 [math-ph])
- 2-Group Representations for Spin Foams. (arXiv:0910.1542v1 [hep-th])
- Financial Applications of Random Matrix Theory: a short review. (arXiv:0910.1205v1 [q-fin.ST])
- The Pure Spinor Formulation of Superstrings. (arXiv:0910.1195v1 [hep-th])
- A Dialogue on the Nature of Gravity. (arXiv:0910.0839v1 [gr-qc])
- Renormalization group trajectories between two fixed points. (arXiv:0910.1063v1 [math-ph])
- Lagrange-Poincare field equations. (arXiv:0910.0874v1 [nlin.CD])
- Light, Links and Causal Sets. (arXiv:0910.0673v1 [gr-qc])
- Cosmological singularity. (arXiv:0910.0374v1 [gr-qc])
- Non-perturbative Field Theory. (arXiv:0910.0812v1 [hep-th])
- Covariant Star Product for Exterior Differential Forms on Symplectic Manifolds. (arXiv:0910.0459v1 [hep-th])
- Cell processor implementation of a MILC lattice QCD application. (arXiv:0910.0262v1 [hep-lat])
- Lorentzian wormholes generalize thermodynamics still further
- Statistical challenges of high-dimensional data
- Observed universality of phase transitions in high-dimensional geometry, with implications for modern data analysis and signal processing
- Quasiparticles do the twist
- Faheem Hussain — As I Knew Him
- Israel Gelfand, Sept. 2nd 1913 — Oct. 5th 2009
- Israel Gelfand
- Bourbaki Archives
- Science and the arts need not be strangers
- Intellectual Elitism? You get what you give.
- Gen-F Scientists Ignoring Social Networking
- Face it: Being a scientist can really suck
- Sounds Familiar
- Energy savings in black and white
- Pain and rheumatology: an overview of the problem
- The Short View — Financial Times sobre o Brasil
- CeeVee Creates Clean-Looks Resumes for Web or Print [Resume]
- Google Docs Viewer Bookmarklet Makes PDFs Less Freeze-y [Bookmarklet]
- Google Wave 101 [Google Wave]
Categorias:arXiv, gr-qc, hep-lat, hep-th, math-ph, Mathematics, pesquisa, Physics, Science, Utilidade Pública
arts, arXiv, Bourbaki, causal sets, cell processor, cosmological, covariant, data analysis, differential forms, Faheem Hussain, fixed point, Google Docs Viewer, Google Wave, gr-qc, gravity, hep-lat, hep-th, hihg-dimensional data, Israel Gelfand, Lagrange, lattice QCD, Lorentzian wormholes, math-ph, MILC, non-perturbative, phase transition, Poincaré, quasiparticles, renormalization, signal processing, singularity, star product, symplectic manifolds, thermodynamics, twist, universality, wormholes
A semana nos arXivs…
sexta-feira, 25 set 2009; \39\UTC\UTC\k 39
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- Three Etudes in QFT. (arXiv:0909.4424v1 [hep-th])
- The β-function over curved space-time under ζ-function regularization. (arXiv:0909.4122v1 [math-ph])
- Geometry of Renormalization. (arXiv:0909.4117v1 [math-ph])
- Three-dimensional topological field theory and symplectic algebraic geometry II. (arXiv:0909.3643v2 [math.AG])
- Aspects of Symmetries in Field and String Theories. (arXiv:0909.4057v1 [hep-th])
- Quantum Critical Dynamics from Black Holes. (arXiv:0909.3553v1 [cond-mat.str-el])
- Stochastic expansions and Hopf algebras
- All vacuum near horizon geometries in arbitrary dimensions. (arXiv:0909.3462v1 [gr-qc])
- Quantum gravity without space-time singularities or horizons. (arXiv:0909.3426v1 [gr-qc])
- Spontaneous Dimensional Reduction in Short-Distance Quantum Gravity?. (arXiv:0909.3329v1 [gr-qc])
- Replication regulates volume weighting in quantum cosmology
- The weak and strong ends of a theory
- The Gömböc: a nearly-impossible, self-righting, homogenous shape
- Ben-Zvi’s Lectures on Topological Field Theory III
- Steen on mathematics and biology
- Physics: The edge of physics
- Entanglement In The Macroworld
- How To Write A Scientific Paper
- Science, Pseudoscience and Bollocks
- The socialisation of scientific and technological research
- A speech for the American Academy of Arts and Sciences
- Jono Bacon: The Art of Community Available For Free Download
- PyOpenCL lets you access the OpenCL parallel computation API from Python e PyCUDA lets you access Nvidia‘s CUDA parallel computation API from Python
Categorias:arXiv, Computer Science, Epistemologia, Filosofia, Free and Open Access, Free Software, gr-qc, hep-lat, hep-th, IT, math-ph, Mathematics, Open Source Science, Physics, Science, Science 2.0, Science Writers, Scientific Politics, soc-ph, Utilidade Pública, Utilidade Pública
AAAS, American Academy of Arts and Sciences, API, arXiv, bollocks, community, creative commons, CUDA, dimensional reduction, Gömböc, gr-qc, hep-lat, hep-th, math-ph, OpenCL, pseudoscience, PyCUDA, PyOpenCL, quantum cosmology, Quantum Gravity, renormalization, research, singularities
A semana nos arXivs…
quarta-feira, 16 set 2009; \38\UTC\UTC\k 38
Deixe um comentário
- Deriving particle physics from quantum gravity: a plan. (arXiv:0909.3223v1 [hep-th])
- Introductory Lectures on String Theory. (arXiv:0808.0663v1 [physics.pop-ph])
- Proof by Coinduction
- A speech for the American Academy of Arts and Sciences
Categorias:arXiv, gr-qc, hep-lat, hep-th, math-ph, Mathematics, pesquisa, Physics, Science, Science 2.0, Science Writers, Scientific Politics, Utilidade Pública
AAAS, American Academy of Arts and Sciences, arXiv, coinduction, creative commons, gr-qc, hep-lat, hep-th, math-ph, particle physics, proof, Quantum Gravity
A semana nos arXivs…
sexta-feira, 11 set 2009; \37\UTC\UTC\k 37
3 comentários
- Time in quantum physics: From an external parameter to an intrinsic observable. (arXiv:0909.1899v1 [math-ph])
- Some remarks on the geometric quantization of contact manifolds. (arXiv:0909.2023v1 [math.SG])
- Space does not exist, so time can. (arXiv:0909.1861v1 [gr-qc])
- Spectral action in noncommutative geometry and global pseudodifferential calculus. (arXiv:0909.1261v1 [math-ph])
- Topics in Noncommutative Geometry Inspired Physics. (arXiv:0909.1000v1 [hep-th])
- Loop and surface operators in N=2 gauge theory and Liouville modular geometry. (arXiv:0909.0945v1 [hep-th])
- Chaos in Partial Differential Equations. (arXiv:0909.0910v1 [nlin.CD])
- 6 Lectures on QFT, RG and SUSY. (arXiv:0909.0859v1 [hep-th])
- Change Course, por Steven Weinberg
- Theory of Rumour Spreading in Complex Social Networks.
- B-N-R Part 3: PPAV’s and some details
- B-N-R Part 4: Prym Varieties
- B-N-R Part 5: Spectral Curves
- Science And Journalism: Scientists Engage Journalists More Than Is Perceived
- Research, Not Relations…
- País investe menos de 25% que ricos em ensino
- Not All Interactive Engagement is the Same: Variations in Physics Professors’ Implementation of “Peer Instruction”
- Mathematicians: An Outer View of the Inner World
- Einstein has an H’ Index of 1?
- Mistaking Beauty for Truth in Science and in Economics — “Because of the success of perturbation theory, the physicists’ mathematical knowledge has reduced to a certain familiarity with the greek alphabet…”, R. Jost
- This Week’s Finds in Mathematical Physics (Week 279)
- Economics Is Not a Natural Science
Categorias:arXiv, Economia, gr-qc, hep-lat, hep-th, math-ph, Mathematics, pesquisa, Physics, Science, Utilidade Pública, Utilidade Pública
arXiv, BNR, chaos, educação, Einstein, geometric quantization, geometry, gr-qc, hep-lat, hep-th, ilusão, jornalismo científico, Liouville, math-ph, modular geometry, noncommutative, problem of time, Prym varieties, pseudodifferencial, spectral curves, steven weinberg, time in quantum physics
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