Lyapunov inequality
E181627
The Lyapunov inequality is a fundamental result in stability theory and analysis that provides bounds relating norms or moments of functions or solutions to differential equations, widely used in studying the stability of dynamical systems.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lyapunov inequality canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1597822 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
Target entity: Lyapunov inequality Context triple: [Aleksandr Lyapunov, notableConcept, Lyapunov inequality]
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A.
Poincaré inequality
The Poincaré inequality is a fundamental result in functional analysis and partial differential equations that bounds the average oscillation of a function by the size of its gradient, playing a key role in Sobolev space theory and the study of elliptic problems.
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B.
Ulam stability
Ulam stability is a concept in the theory of functional equations that studies when approximate solutions imply the existence of exact solutions nearby, forming the basis of what is now called Hyers–Ulam stability.
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C.
Jensen inequality
Jensen's inequality is a fundamental result in convex analysis and probability theory that relates the value of a convex (or concave) function of an expectation to the expectation of the function, providing bounds that underlie many other inequalities and convergence results.
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D.
Minkowski inequality
The Minkowski inequality is a fundamental result in functional analysis and measure theory that generalizes the triangle inequality to L^p spaces, providing a key tool for studying norms and integrable functions.
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E.
Khinchin–Kahane type inequalities
Khinchin–Kahane type inequalities are fundamental results in probability and functional analysis that bound moments or norms of random series (often with Rademacher or Gaussian coefficients) in terms of each other, providing powerful tools for studying the geometry of Banach spaces and random processes.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Target entity: Lyapunov inequality Target entity description: The Lyapunov inequality is a fundamental result in stability theory and analysis that provides bounds relating norms or moments of functions or solutions to differential equations, widely used in studying the stability of dynamical systems.
-
A.
Poincaré inequality
The Poincaré inequality is a fundamental result in functional analysis and partial differential equations that bounds the average oscillation of a function by the size of its gradient, playing a key role in Sobolev space theory and the study of elliptic problems.
-
B.
Ulam stability
Ulam stability is a concept in the theory of functional equations that studies when approximate solutions imply the existence of exact solutions nearby, forming the basis of what is now called Hyers–Ulam stability.
-
C.
Jensen inequality
Jensen's inequality is a fundamental result in convex analysis and probability theory that relates the value of a convex (or concave) function of an expectation to the expectation of the function, providing bounds that underlie many other inequalities and convergence results.
-
D.
Minkowski inequality
The Minkowski inequality is a fundamental result in functional analysis and measure theory that generalizes the triangle inequality to L^p spaces, providing a key tool for studying norms and integrable functions.
-
E.
Khinchin–Kahane type inequalities
Khinchin–Kahane type inequalities are fundamental results in probability and functional analysis that bound moments or norms of random series (often with Rademacher or Gaussian coefficients) in terms of each other, providing powerful tools for studying the geometry of Banach spaces and random processes.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
mathematical inequality
ⓘ
result in stability theory ⓘ |
| appliesTo |
Lyapunov functions
ⓘ
solutions of differential equations ⓘ trajectories of dynamical systems ⓘ |
| assumption | existence of a suitable Lyapunov function ⓘ |
| context |
qualitative theory of differential equations
ⓘ
stability of equilibrium points ⓘ stability of linear time-invariant systems ⓘ |
| field |
dynamical systems theory
ⓘ
mathematical analysis ⓘ stability theory ⓘ |
| generalizationOf | certain energy-type inequalities in analysis ⓘ |
| hasForm |
inequality involving a Lyapunov function and its time derivative
ⓘ
inequality involving norms of a state and its derivative ⓘ |
| implies |
conditions for asymptotic stability
ⓘ
constraints on system matrices in linear systems ⓘ |
| mathematicalDomain |
applied mathematics
ⓘ
functional analysis ⓘ ordinary differential equations ⓘ |
| namedAfter | Aleksandr Lyapunov ⓘ |
| provides |
bounds on moments of functions
ⓘ
bounds on norms of functions ⓘ bounds on solutions of differential equations ⓘ |
| purpose | to relate norms or moments of functions to stability properties ⓘ |
| relatedTo |
Gronwall inequality
ⓘ
Jensen inequality ⓘ Lyapunov exponents ⓘ
surface form:
Lyapunov exponent
Lyapunov stability theory ⓘ
surface form:
Lyapunov function
Lyapunov stability ⓘ Lyapunov stability theory ⓘ
surface form:
Lyapunov’s second method
integral inequalities ⓘ |
| usedFor |
bounding growth of trajectories
ⓘ
deriving sufficient conditions for stability ⓘ establishing decay rates of solutions ⓘ performance bounds in control systems ⓘ robust stability analysis ⓘ |
| usedIn |
Lyapunov stability theory
ⓘ
analysis of linear systems ⓘ analysis of nonlinear systems ⓘ analysis of ordinary differential equations ⓘ control theory ⓘ design of stabilizing controllers ⓘ differential equations ⓘ stability analysis of dynamical systems ⓘ verification of stability via linear matrix inequalities ⓘ |
How these facts were elicited
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Subject: Lyapunov inequality Description of subject: The Lyapunov inequality is a fundamental result in stability theory and analysis that provides bounds relating norms or moments of functions or solutions to differential equations, widely used in studying the stability of dynamical systems.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.