Supersymmetry and singular perturbations
نویسندگان
چکیده
منابع مشابه
Dynamic Metastability and Singular Perturbations
Certain singularly perturbed time-dependent partial diierential equations exhibit a phenomenon known as dynamic metastability whereby the time-dependent solution approaches a steady-state solution only over an an asymptotically exponentially long time interval. This metastable behavior is directly related to the occurrence of an asymptotically exponentially small principal eigenvalue for the li...
متن کاملSupersymmetry in Singular Quantum Mechanics
The breaking of supersymmetry due to singular potentials in supersymmetric quantum mechanics is critically analyzed. It is shown that, when properly regularized, these potentials respect supersymmetry, even when the regularization parameter is removed.
متن کاملSingular Perturbations in Option Pricing
After the celebrated Black-Scholes formula for pricing call options under constant volatility, the need for more general nonconstant volatility models in financial mathematics has been the motivation of numerous works during the Eighties and Nineties. In particular, a lot of attention has been paid to stochastic volatility models where the volatility is randomly fluctuating driven by an additio...
متن کاملBoundary Conditions for Singular Perturbations
Let A : D(A) H ! H be an injective self-adjoint operator and let : D(A) ! X, X a Banach space, be a surjective linear map such that k k X c kAAk H. Supposing that Range (0) \ H 0 = f0g, we deene a family A of self-adjoint operators which are extensions of the symmetric operator A jf =0g. Any in the operator domain D(A) is characterized by a sort of boundary conditions on its univocally deened r...
متن کاملSingular Perturbations of Complex Polynomials
In this paper we describe the dynamics of singularly perturbed complex polynomials. That is, we start with a complex polynomial whose dynamics are well understood. Then we perturb this map by adding a pole, i.e., by adding in a term of the form λ/(z − a)d where the parameter λ is complex. This changes the polynomial into a rational map of higher degree and, as we shall see, the dynamical behavi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 1985
ISSN: 0022-1236
DOI: 10.1016/0022-1236(85)90046-1