#LyX 2.4 created this file. For more info see https://www.lyx.org/
\lyxformat 620
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\begin_header
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\textclass elsarticle
\begin_preamble
% specify here the journal
\journal{Example: Nuclear Physics B}

% use this if you need line numbers
%\usepackage{lineno}
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theorems-std
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\begin_body

\begin_layout Standard
\begin_inset Note Note
status open

\begin_layout Plain Layout
This is a template \SpecialChar LyX
 file for articles to be submitted to journals of the Elsevier publishing company.
 For general infos see 
\begin_inset Flex URL
status open

\begin_layout Plain Layout

https://wiki.lyx.org/Examples/Elsevier
\end_layout

\end_inset

.
\end_layout

\end_inset


\end_layout

\begin_layout Standard
\begin_inset Note Note
status open

\begin_layout Plain Layout
The Journal is specified in the document preamble!
 For the right document class options to get the page format for your journal,
 have a look at the elsarticle documentation:
 
\begin_inset Flex URL
status collapsed

\begin_layout Plain Layout

https://mirrors.ctan.org/macros/latex/contrib/elsarticle/doc/elsdoc.pdf
\end_layout

\end_inset


\end_layout

\end_inset


\end_layout

\begin_layout Title
This is a specimen title
\begin_inset Flex Titlenotemark
status open

\begin_layout Plain Layout
t1,t2
\end_layout

\end_inset


\begin_inset Note Note
status collapsed

\begin_layout Plain Layout

\size normal
With 
\series bold
\size default

\backslash
tnoteref
\series default
\size normal
 you refer to the title footnotes.
\end_layout

\end_inset


\end_layout

\begin_layout Title footnote
This document is a collaborative effort.
\begin_inset Argument 1
status open

\begin_layout Plain Layout
t1
\end_layout

\end_inset


\end_layout

\begin_layout Title footnote
The second title footnote which is a longer longer than the first one and with an intention to fill in up more than one line while formatting.
\begin_inset Argument 1
status open

\begin_layout Plain Layout
t2
\end_layout

\end_inset


\begin_inset Note Note
status open

\begin_layout Plain Layout
There are two author styles possible:
\end_layout

\begin_layout Plain Layout
1.
 Authors side by side
\begin_inset space \hfill{}
\end_inset

2.
 Authors below each other
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
Author
\begin_inset space \hfill{}
\end_inset

Author
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
Email
\begin_inset space \hfill{}
\end_inset

Email
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
Author
\begin_inset space \hfill{}
\end_inset

Address
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
Email
\begin_inset space \hfill{}
\end_inset

Author
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
Addresses
\begin_inset space \hfill{}
\end_inset

Email
\begin_inset space \hfill{}
\end_inset


\end_layout

\begin_layout Plain Layout
—
—
-
\begin_inset space \hfill{}
\end_inset

Address
\begin_inset space \hfill{}
\end_inset


\end_layout

\end_inset


\end_layout

\begin_layout Author
C.V.
\begin_inset space ~
\end_inset

Radhakrishnan
\begin_inset Flex Authormark
status collapsed

\begin_layout Plain Layout
fn1
\end_layout

\end_inset


\begin_inset Flex CorAuthormark
status open

\begin_layout Plain Layout
cor1
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\begin_inset Flex CorAuthormark
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\begin_layout Plain Layout
cor2
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\end_inset


\begin_inset Argument 1
status open

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rvt
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\end_layout

\begin_layout Email
cvr@river-valley.com
\begin_inset Note Note
status collapsed

\begin_layout Plain Layout
At least one Email address is required.
\end_layout

\end_inset


\end_layout

\begin_layout Author
K.
\begin_inset space ~
\end_inset

Bazargan
\begin_inset Flex Authormark
status open

\begin_layout Plain Layout
fn2
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\end_inset


\begin_inset Argument 1
status open

\begin_layout Plain Layout
rvt,focal
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\end_inset


\begin_inset Note Note
status collapsed

\begin_layout Plain Layout

\size normal
With 
\series bold
\size default

\backslash
fnref
\series default
\size normal
 and you refer to the author footnotes.
\end_layout

\end_inset


\end_layout

\begin_layout Email
http://www.elsevier.com
\begin_inset Argument 1
status open

\begin_layout Plain Layout
url
\end_layout

\end_inset


\end_layout

\begin_layout Author footnote
This is the specimen author footnote.
\begin_inset Argument 1
status open

\begin_layout Plain Layout
fn1
\end_layout

\end_inset


\end_layout

\begin_layout Author footnote
Another author footnote,
 but a little more longer.
\begin_inset Argument 1
status open

\begin_layout Plain Layout
fn2
\end_layout

\end_inset


\end_layout

\begin_layout Corresponding author
Corresponding author
\begin_inset Argument 1
status open

\begin_layout Plain Layout
cor1
\end_layout

\end_inset


\end_layout

\begin_layout Corresponding author
Principal corresponding author
\begin_inset Argument 1
status open

\begin_layout Plain Layout
cor2
\end_layout

\end_inset


\end_layout

\begin_layout Address
River Valley Technologies,
 SJP Building,
 Cotton Hills,
 Trivandrum,
 Kerala,
 India 695014
\begin_inset Argument 1
status open

\begin_layout Plain Layout
rvt
\end_layout

\end_inset


\end_layout

\begin_layout Address
River Valley Technologies,
 9,
 Browns Court,
 Kennford,
 Exeter,
 United Kingdom
\begin_inset Argument 1
status open

\begin_layout Plain Layout
focal
\end_layout

\end_inset


\begin_inset Note Note
status open

\begin_layout Plain Layout
This is an example of the second author style:
\end_layout

\begin_layout Author
C.V.
\begin_inset space ~
\end_inset

Radhakrishnan
\end_layout

\begin_layout Email
cvr@river-valley.com
\end_layout

\begin_layout Address
River Valley Technologies,
 SJP Building,
 Cotton Hills,
 Trivandrum,
 Kerala,
 India 695014
\end_layout

\begin_layout Author
K.
\begin_inset space ~
\end_inset

Bazargan
\end_layout

\begin_layout Email
http://www.elsevier.com
\begin_inset Argument 2
status collapsed

\begin_layout Plain Layout
url
\end_layout

\end_inset


\end_layout

\begin_layout Address
River Valley Technologies,
 9,
 Browns Court,
 Kennford,
 Exeter,
 United Kingdom
\end_layout

\end_inset


\end_layout

\begin_layout Abstract
Abstract,
 should normally be not longer than 200 words.
\end_layout

\begin_layout Keywords
quadruple exiton 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
sep
\end_layout

\end_inset

 polariton 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
sep
\end_layout

\end_inset

 WGM 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
PACS
\end_layout

\end_inset

 71.35.-y 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
sep
\end_layout

\end_inset

 71.35.Lk 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
sep
\end_layout

\end_inset

 71.36.+c 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
MSC[2008]
\end_layout

\end_inset

23-557
\begin_inset Note Note
status open

\begin_layout Plain Layout
Keywords must be separated by 
\series bold

\backslash
sep
\series default
.
 
\series bold

\backslash
PACS
\series default
 and 
\series bold

\backslash
MSC
\series default
 are optional classifications.
\end_layout

\end_inset


\end_layout

\begin_layout Standard
\begin_inset Note Note
status open

\begin_layout Plain Layout
Use here the command 
\begin_inset ERT
status collapsed

\begin_layout Plain Layout


\backslash
linenumbers 
\end_layout

\end_inset

 and enable the package 
\series bold
lineno
\series default
 in the preamble if you need line numbers.
\end_layout

\end_inset


\end_layout

\begin_layout Section
Introduction
\end_layout

\begin_layout Standard
Bla bla,
 as listed in 
\begin_inset CommandInset citation
LatexCommand citet
key "article-full,booklet-full"
literal "true"

\end_inset

.
\end_layout

\begin_layout Standard
\begin_inset Formula 
\begin{eqnarray}
A & = & \prod_{i=1}^{\infty}B\nonumber \\
 & = & C
\end{eqnarray}

\end_inset


\end_layout

\begin_layout Theorem
Theorem 1
\end_layout

\begin_layout Standard
\begin_inset Separator plain
\end_inset


\end_layout

\begin_layout Theorem
Theorem 2
\end_layout

\begin_layout Subsection
Subsection
\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Standard
\begin_inset Note Note
status open

\begin_layout Plain Layout
To get another numbering scheme,
 you cannot use an option argument (a.k.a.
 short title) as described in the elsarticle manual.
 But you can use the following \SpecialChar TeX
-code command to achieve the same:
\end_layout

\end_inset


\end_layout

\begin_layout Standard
\begin_inset ERT
status open

\begin_layout Plain Layout


\backslash
renewcommand{
\backslash
labelenumi}{(
\backslash
roman{enumi})} 
\end_layout

\end_inset


\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Standard
\begin_inset ERT
status open

\begin_layout Plain Layout


\backslash
renewcommand{
\backslash
labelenumi}{Step
\backslash
,
\backslash
alph{enumi})} 
\end_layout

\end_inset


\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Enumerate
test
\end_layout

\begin_layout Subsubsection
Subsubsection
\end_layout

\begin_layout Standard
Bla,
 bla
\end_layout

\begin_layout Section
\start_of_appendix
Appendix name
\end_layout

\begin_layout Standard
Appendix,
 only when needed.
\end_layout

\begin_layout Section*
—
—
—
—
—
–
\end_layout

\begin_layout Standard
You can use either Bib\SpecialChar TeX
:
\begin_inset Note Note
status open

\begin_layout Plain Layout
The following bibliography styles are allowed:
 
\family sans
elsarticle-harv
\family default
,
 
\family sans
elsarticle-num-names
\family default
,
 or 
\family sans
elsarticle-num
\end_layout

\end_inset


\end_layout

\begin_layout Standard
\begin_inset CommandInset bibtex
LatexCommand bibtex
bibfiles "xampl"
options "bibtotoc,elsarticle-harv"

\end_inset


\end_layout

\begin_layout Section*
—
—
—
—
—
—
—

\end_layout

\begin_layout Standard
\noindent
Or plain bibliography:
\end_layout

\begin_layout Bibliography
\begin_inset CommandInset bibitem
LatexCommand bibitem
key "key-1"
literal "true"

\end_inset

Frank Mittelbach and Michel Goossens:
 
\emph on
The \SpecialChar LaTeX
 Companion Second Edition.

\emph default
 Addison-Wesley,
 2004.
\end_layout

\begin_layout Bibliography
\begin_inset CommandInset bibitem
LatexCommand bibitem
key "key-2"
literal "true"

\end_inset

Scott Pakin.
 The comprehensive \SpecialChar LaTeX
 symbol list,
 2005.
\end_layout

\end_body
\end_document
