We consider the problem of frequency limited H 2 optimal model order reduction for large-
scale sparse linear systems. A set of first-order H 2 optimality conditions are derived for the …

Accumulative error along with time impedes the application of many computational methods
on high‐precision simulation; therefore, time‐interval methods emerge. In this paper, a new …

In this paper, the problems of frequency-limited and time-limited H 2-optimal model order
reduction of linear time-invariant systems are considered within the oblique projection …

Thermoacoustic systems are often modeled with a hybrid approach that combines separate
models for acoustic propagation and flame dynamics. Model Order Reduction (MOR) may …

In time-limited model order reduction, a reduced-order approximation of the original high-
order model is obtained that accurately approximates the original model within the desired …

This thesis investigates the H 2-optimal model order reduction problem within finite time and
frequency intervals. Several oblique projection-based algorithms are proposed that …

In the time-and frequency-limited model order reduction, a reduced-order approximation of
the original high-order model is sought to ensure superior accuracy in some desired time …

Several approaches for reducing model order on the definite time segments have become
the topic of investigation in a series of papers that bring challenges during application in a …

This paper presents an interpolatory framework for model order reduction of linear time-
invariant (LTI) systems over limited time intervals of the form [0, τ], with τ<∞. We give a new …

For a time-limited H 2 cost function defined over a finite time interval, we obtain analytical
expressions of the gradients using a gramian framework. The time-limited H 2 optimal model …