# On the functional equation $f(x+y)f(x-y)={f}^{2}\left(x\right)-{f}^{2}\left(y\right)$

Annales Polonici Mathematici (1961)

- Volume: 10, Issue: 1, page 1-5
- ISSN: 0066-2216

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topKurepa, S.. "On the functional equation $f(x+y)f(x-y)=f^2(x)-f^2 (y)$." Annales Polonici Mathematici 10.1 (1961): 1-5. <http://eudml.org/doc/208125>.

@article{Kurepa1961,

author = {Kurepa, S.},

journal = {Annales Polonici Mathematici},

keywords = {functional analysis},

language = {eng},

number = {1},

pages = {1-5},

title = {On the functional equation $f(x+y)f(x-y)=f^2(x)-f^2 (y)$},

url = {http://eudml.org/doc/208125},

volume = {10},

year = {1961},

}

TY - JOUR

AU - Kurepa, S.

TI - On the functional equation $f(x+y)f(x-y)=f^2(x)-f^2 (y)$

JO - Annales Polonici Mathematici

PY - 1961

VL - 10

IS - 1

SP - 1

EP - 5

LA - eng

KW - functional analysis

UR - http://eudml.org/doc/208125

ER -

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