搜索结果: 1-15 共查到“理学 Infinity”相关记录28条 . 查询时间(0.254 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Proofs of two or infinity conjectures for Reeb orbits and closed geodesics
Reeb轨道 闭测地线 两个 无穷大猜想
2023/11/29
In this talk, we give a proof of the conjecture of Hofer-Wysocki-Zehnder published in 2003 asserting that a smooth and autonomous Hamiltonian flow on R4 has either two or infinitely many simple period...
Riccati Differential Inequalities: Suboptimal H-infinity Controllers for Finite Horizon Time-Varying Systems
Riccati Differential Inequalities Suboptimal H-infinity
2015/6/19
In this paper we give a direct derivation of the solution to the continuous time finite horizon H-infinity synthesis problem. An explicit separation of the time domain cost function into past and futu...
Robust Performance and Adaptation Using Receding Horizon H-infinity Control of Time Varying Systems
Receding Horizon H-infinity Control Time Varying Systems
2015/6/19
In this paper we construct suboptimal H-infinity controllers which satisfy a new robust performance condition, using the receding horizon technique. A method is described for the synthesis of H-infini...
H-infinity Synthesis for Multi-Rate Hybrid Systems
Multi-Rate Hybrid Systems H-infinity Synthesis
2015/6/19
In this paper we present new techniques for the solution of the multi-rate sampled-data H-infinity synthesis problem. This makes use of the mathematical tools developed in previous work.. Necessary an...
Time-Delayed Decentralized H-Infinity Controller Design for Civil Structures: a Homotopy Method Through Linear Matrix Inequalities
Civil Structures Controller Design
2015/6/19
Traditional structural feedback control systems are centralized systems, whose applications to large scale structures encounter a number of practical difficulties in terms of system reliability, cost,...
Interpretation of percolation in terms of infinity computations
Interpretation of percolation terms of infinity computations General Physics
2012/5/28
In this paper, a number of traditional models related to the percolation theory has been considered by means of new computational methodology that does not use Cantor's ideas and describes infinite an...
Lagrange Stabilization of Pendulum-like Systems: A Pseudo H-infinity Control Approach
Pseudo Strict Bounded Real Lemma Pendulum-like systems Lagrange stability
2011/10/10
Abstract: This paper studies the Lagrange stabilization of a class of nonlinear systems whose linear part has a singular system matrix and which have multiple periodic (in state) nonlinearities. Both ...
The M/M/Infinity Service System with Ranked Servers in Heavy Traffic
Queueing theory asymptotic expansions Probability
2011/8/30
Abstract: We consider an M/M/Infinity service system in which an arriving customer is served by the first idle server in an infinite sequence S_1, S_2, ... of servers. We determine the first two terms...
Spectral and stochastic properties of the $f$-Laplacian, solutions of PDE's at infinity, and geometric applications
Weighted Laplacians Feller property stochastic completeness essential spectrum gradient Ricci solitons
2011/8/26
Abstract: The aim of this paper is to suggest a new viewpoint to study qualitative properties of solutions of semilinear elliptic PDE's defined outside a compact set. The relevant tools come from spec...
The classification of polynomial basins of infinity
polynomial basins of infinity Dynamical Systems Complex Variables
2011/8/26
Abstract: We consider the problem of classifying the dynamics of complex polynomials $f: \mathbb{C} \to \mathbb{C}$ restricted to their basins of infinity. We synthesize existing combinatorial tools -...
Geometry and Shape of Minkowski's Space Conformal Infinity
Minkowski space space-time conformal group twistors infinity Cli ord algebra cyclide
2011/8/25
Abstract: We review and further analyze Penrose's 'light cone at infinity' - the conformal closure of Minkowski space. Examples of a potential confusion in the existing literature about it's geometry ...
Moebius structures and Ptolemy spaces: boundary at infinity of complex hyperbolic spaces
Moebius structures Ptolemy spaces boundary at infinity of complex hyperbolic spaces
2011/1/19
The paper initiates a systematic study of M¨obius structures and Ptolemy spaces. We conjecture that every compact Ptolemy space with circles and many space inversions is M¨obius equivalent to the boun...
Cech cocycles for differential characteristic classes -- An infinity-Lie theoretic construction
differential characteristic classes infinity-Lie theoretic construction
2010/12/27
We define for every L-infinity algebra a smooth infinity-group integrating it, and define smooth principal infinity-bundles with connection. For every L-infinity-algebra cocycle of suitable degree, w...
Cech cocycles for differential characteristic classes -- An infinity-Lie theoretic construction
Cech cocycles differential characteristic classes
2010/11/24
We define for every L-infinity algebra a smooth infinity-group integrating it, and define smooth principal infinity-bundles with connection. For every L-infinity-algebra cocycle of suitable degree, we...
On the injectivity radius and tangent cones at infinity of gradient Ricci solitons
injectivity radius tangent cones infinity of gradient Ricci solitons
2011/1/18
A lower-bound estimate of injectivity radius for complete Riemannian manifolds is discussed in a pure geometric viewpoint and is applied to study tangent cones at in nity of certain gradient Ricci sol...