(Q).
Information: - Mathematics (from Greek "mathma", knowledge, study, learning) is the study of topics such as quantity (numbers), structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics. - The Fourier transform decomposes a function of time (a "signal") into the frequencies that make it up, in a way similar to how a musical chord can be expressed as the frequencies (or pitches) of its constituent notes. The Fourier transform of a function of time itself is a complex-valued function of frequency, whose absolute value represents the amount of that frequency present in the original function, and whose complex argument is the phase offset of the basic sinusoid in that frequency. The Fourier transform is called the "frequency domain representation" of the original signal. The term "Fourier transform" refers to both the frequency domain representation and the mathematical operation that associates the frequency domain representation to a function of time. The Fourier transform is not limited to functions of time, but in order to have a unified language, the domain of the original function is commonly referred to as the "time domain". For many functions of practical interest, one can define an operation that reverses this: the "inverse Fourier transformation", also called "Fourier synthesis", of a frequency domain representation combines the contributions of all the different frequencies to recover the original function of time. - Alexandru Ghika ( June 22 , 1902 -- April 11 , 1964 ) was a Romanian mathematician , founder of the Romanian school of functional analysis . - A mathematician is someone who uses an extensive knowledge of mathematics in his/her work, typically to solve mathematical problems. - Mathematical analysis is the branch of mathematics dealing with limits and related theories, such as differentiation, integration, measure, infinite series, and analytic functions. - Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (e.g. inner product, norm, topology, etc.) and the linear functions defined on these spaces and respecting these structures in a suitable sense. The historical roots of functional analysis lie in the study of spaces of functions and the formulation of properties of transformations of functions such as the Fourier transform as transformations defining continuous, unitary etc. operators between function spaces. This point of view turned out to be particularly useful for the study of differential and integral equations. - A mathematical problem is a problem that is amenable to being represented, analyzed, and possibly solved, with the methods of mathematics. This can be a real-world problem, such as computing the orbits of the planets in the solar system, or a problem of a more abstract nature, such as Hilbert's problems.<br> It can also be a problem referring to the nature of mathematics itself, such as Russell's Paradox. After reading the paragraphs above, we are interested in knowing the entity with which 'alexandru ghika' exhibits the relationship of 'field of work'. Find the answer from the choices below. Choices: - computing - functional analysis - mathematical analysis - mathematician - mathematics - musical
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mathematical analysis

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Information: - The Get Up Kids are an American rock band from Kansas City, Missouri. Formed in 1995, the band was a major player in the mid-1990s emo scene, otherwise known as the "" of emo music. As they gained prominence, they began touring with bands such as Green Day and Weezer before becoming headliners themselves, eventually embarking on international tours of Japan and Europe. They founded Heroes & Villains Records, an imprint of the successful indie rock label Vagrant Records. While the imprint was started to release albums by The Get Up Kids, it served as a launching pad for several side-projects such as The New Amsterdams and Reggie and the Full Effect. - The New Amsterdams is an American band featuring Matthew Pryor of The Get Up Kids. - Story Like a Scar is an album by The New Amsterdams released on March 21 , 2006 . After reading the paragraphs above, we are interested in knowing the entity with which 'story like a scar' exhibits the relationship of 'record label'. Find the answer from the choices below. Choices: - 1995 - europe - japan - vagrant records
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vagrant records