Deedy Das’ Post

📃Scientific paper: On fibrations and measures of irrationality of hyper-Kähler manifolds Abstract: International audience; We prove some results on the fibers and images of rational maps from a hyper-Kähler manifold. We study in particular the minimal genus of fibers of a fibration into curves. The last section of this paper is devoted to the study of the rational map defined by a linear system on a hyper-Kähler fourfold satisfying numerical conditions similar to those considered by O'Grady in his study of fourfolds numerically equivalent to K3 [2]. We extend his results to this more general context. Continued on ES/IODE ➡️ https://etcse.fr/X9fhv ------- If you find this interesting, feel free to follow, comment and share. We need your help to enhance our visibility, so that our platform continues to serve you.

In this video, I review the different parts of a scientific paper and briefly describe what goes into each one. https://lnkd.in/gv4JTzzk

Some people have been critisizing the Quantinuum paper. I even heard about dishonesty in media coverage. 1. "They use preselection". Yes, to prove a point after they get the correct states. Nothing wrong with it. Assuming perfect, or near perfect state-preparation, their results following are great. 2. "They use postselection". Yes, who does not? 3. "800x is not scalable due to the postselection scaling". Ok, its still ok maybe for 1 more order of magnitude (if not more)? Possibly. That is the level required to show true (not sampling) advantage. In general BQP -> PP would be a worst case scenario and we dont need millions of logical qubits to show cool stuff, maybe 40? 50? 100? 4. "Paper is not peer-reviewed". Yes, it just came out yesterday. I would assume its already with Nature. People need to relax a bit. Rome was not built in a day. #quantumcomputing #quantumcomputation #quantumphysics

Here’s how to build a portfolio of case studies like a top 1% researcher: 

📃Scientific paper: Conditions for eigenvalue configurations of two real symmetric matrices: a signature approach Abstract: For two real symmetric matrices, their eigenvalue configuration is the arrangement of their eigenvalues on the real line. In this paper, we provide quantifier-free necessary and sufficient conditions for two symmetric matrices to realize a given eigenvalue configuration. The basic idea is to generate a set of polynomials in the entries of the two matrices whose roots can be counted to uniquely determine the eigenvalue configuration. This result can be seen as ageneralization of Descartes' rule of signs to the case of two real univariate polynomials. ;Comment: arXiv admin note: substantial text overlap with arXiv:2401.00089 Continued on ES/IODE ➡️ https://etcse.fr/paSy ------- If you find this interesting, feel free to follow, comment and share. We need your help to enhance our visibility, so that our platform continues to serve you.

https://lnkd.in/e9Yq9V4Y Develop “from the ground up” many of the major, exciting, re- and post-millennium developments in the general area of study known as quantum Shannon theory. #quantumcomputing #quantumphysics #quantumtechnologies #quantumcomputers

New journal paper accepted. Based on work by Thompson et al. (Daniel Warren) showing this approach for tubes with circular cross-section, I show new complete lumped models for the slit structure and for tubes with an equilateral triangular cross-section. I will soon submit an already finished "part 2" manuscript showing how a Padé Approximant approach will lead to similar results, as a previous paper using this method has several errors in it. And possibly a third paper using a partial fraction fitting approach (Kirill Shaposhnikov) for more general cross-sections. Nikolaj Christiansen I will let you know when it is published, so you can compare with your current results. Gojko Obradović Mads J. Herring Jensen

timeline of the croup project started: June 2023 research day: Oct 19,2023 poster presentation: Nov 18, 2023 currently: working on the manuscript

If you are interested in starting a research project in salient object detection, this paper may be helpful for a quick overview of some classical methods and recent works in the area. https://lnkd.in/gS8tRDq2 Citation: Wang X, Yu S, Lim EG and Wong MLD (2024) Salient object detection: a mini review. Front. Sig. Proc. 4:1356793. doi: 10.3389/frsip.2024.1356793

Is it time to bid farewell to the concept of falsifiability in science? Douglas Scott and colleagues challenge the cornerstone of scientific theory, suggesting that ideas like string theory and the multiverse, which lack testable predictions, may still hold scientific value. They provocatively propose abandoning not just falsifiability but also fidelity, frugality, factuality, and other "F" words in scientific thinking. What's your take on this radical shift? Could it lead to a new paradigm in understanding our universe, or does it risk the integrity of scientific inquiry? #ScienceEvolution #Falsifiability #StringTheory #Multiverse #ScientificMethod (Note: The input text appears to be a description of a satirical or spoof paper, likely submitted on April 1st (April Fool's Day) as indicated by the submission date. The post has been crafted to reflect the provocative nature of the paper while inviting discussion on the topic.) https://lnkd.in/gdTQRnVJ